Text

Oregon State University Annual Report (July 1, 2021 - June 30, 2022)
	ML22301A145
Person / Time
Site:	Oregon State University
Issue date:	10/28/2022
From:	Reese S; Oregon State University
To:	; Office of Nuclear Reactor Regulation
References
	Download: ML22301A145 (1)
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RADIATION CENTER AND TRI GA REACTOR ANNUAL REPORT JULY I, 2021 - JUNE 30, 2022

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Oregon State V' University

Submitted by:

Steve R. Reese, Director Radiation Center Oregon State University Corvallis, Oregon 97331-5903 Telephone: (541) 737-2341 Fax: (541) 737-0480 To satisy the requirements of:

A. U.S. Nuclear Regulatory Commission, License No. R-106 (Docket No. 50-243), Technical Specification 6.7(e).

B. Battelle Energy Alliance, LLC; Subcontract Award No. 00074510.

C. Oregon Department of Energy, OOE Rule No. 345-030-010.

Con_ten_ts Part I-Overview Executive Summary..................................................................................................................................... 4 lntroduction.................................................................................................................................................... 4 Overview of the Radiation Center.......................................................................................................... 5 Part II-People Radiation Center Staff................................................................................................................................. 6 Reactor Operations Committee.............................................................................................................. 6 Professional & Research Faculty.............................................................................................................. 7 Part Ill-Facilities Research Reactor.......................................................................................................................................... 8 Analytical Equipment.................................................................................................................................. 9 Radioisotope Irradiation Sources............................................................................................................ 9 Laboratories & Classrooms......................................................................................................................, O Instrument Repair & Calibration............................................................................................................ l O Part IV-Reactor Operating Statistics.................................................................................................................................... 12 Experiments Performed........................................................................................................................... 12 Unplanned Shutdowns............................................................................................................................. 13 Activities Pursuant to 10 CFR 50.59...................................................................................................... 14 Surveillance & Maintenance................................................................................................................... 13 Part V-Radiation Protection lntroduction.................................................................................................................................................. 26 Environmental Releases........................................................................................................................... 26 Personnel Doses.......................................................................................................................................... 27 Facility Survey Data.................................................................................................................................... 28 Environmental Survey Data.................................................................................................................... 28 Radioactive Material Shipments........................................................................................................... 29 References..................................................................................................................................................... 29 Part VI-Work Summary....................................................................................................................................................... 46 Teaching......................................................................................................................................................... 46 Research & Service..................................................................................................................................... 46 Part VII-Words Documents Published or Accepted..................................................................................................... 68 Presentations................................................................................................................................................ 7 4 Students......................................................................................................................................................... 75

Tables Table Title Page 111.1 Gammacell 220 60Co lrradiator Use............................................ 11 IV. 1 Present OSTR Operating Statistics............................................ 15 IV.2 OSTR Use Time in Terms of Specific Use Categories.................................. 16 IV.3 OSTR Multiple Use Time................................................... 16 IV.4 Use of OSTR Reactor Experiments............................................ 17 IV.5 Unplanned Reactor Shutdowns and Scrams...................................... 17 V. 1 Radiation Protection Program Requirements and Frequencies.......................... 30 V.2 Monthly Summary of Liquid Effluent Releases to the Sanitary Sewer...................... 31 V.3 Annual Summary of Liquid Waste Generated and Transferred........................... 32 V.4 Monthly Summary of Gaseous Effluent Releases................................... 32 V.5 Annual Summary of Solid Waste Generated and Transferred............................ 33 V.6 Annual Summary of Personnel Radiation Doses Received............................. 34 V.7 Total Dose Equivalent Recorded Within the TRIGA Reactor Facility....................... 35 V.8 Total Dose Equivalent Recorded on Area Within the Radiation Center...................... 36 V.9 Annual Summary of Radiation and Contamination Levels Within the Reactor................. 38 V. 1 O Total Dose Equivalent at the TRIGA Reactor Facility Fence............................. 39 V. 11 Total Dose Equivalent at the Off-Site Gamma Radiation Monitoring Stations................. 40 V.12 Annual Average Concentration of the Total Net Beta Radioactivity........................ 41 V.13 Radioactive Material Shipments under NRC General License R-106....................... 42 V.14 Radioactive Material Shipments under Oregon License ORE 90005....................... 43 V. 15 Radioactive Material Shipments Under NRC General License 10 CFR 110.23................. 44 Vl.l Institutions and Agencies Which Utilized the Radiation Center.......................... 48 Vl.2 Listing of Major Research & Service Projects Performed and Their Funding.................. 52 Vl.3 Summary ofRadiological Instrumentation Calibrated to Support OSU Departments............ 66 Vl.4 Summary of Radiological Instrumentation Calibrated to Support Other Agencies............. 66 Figures Table Title Page IV. 1 Monthly Surveillance and Maintenance (Sample Form)................................................................................................. 18 IV.2 Quarterly Surveillance and Maintenance (Sample Form)............................................................................................... 19 IV.3 Semi-Annual Surveillance and Maintenance (Sample Form)........................................................................................ 20 IV.4 Annual Surveillance and Maintenance (Sample Form)................................................................................................... 22 V. 1 Monitoring Stations for the OSU TRIGA Reactor.............................................................................................................45 VI. 1 Summary of the Types of Radiological Instrumentation Calibrated.......................................................................... 67

Overview Executive Summary The data from this reporting year shows that the use of the Radiation Center and the Oregon State TRIG A reactor (OSTR) was dramatically affected by the COVID-19 pandemic again. Not only were just about every metric across the board lower this year, all academic courses were virtual and did not involve the use of Radiation Center facilities, even laboratory classes.

Of the work performed, eighty-three percent (83%) of the OSTR research hours were in support of off-campus research projects, reflecting the use of the OSTR nationally and inter-nationally. Radiation Center users published or submitted 88 articles this year, and made 16 presentations on work that in-volved the OSTR or Radiation Center. The number of samples irradiated in the reactor during this reporting period was 555.

Funded OSTR use hours comprised 82% of the research use.

Personnel at the Radiation Center conducted 129 tours of the facility, accommodating 1,050 visitors, down considerably due to university restrictions on visitors. The visitors included elementary, middle school, high school, and college students; relatives and friends; faculty; current and prospective clients; national laboratory and industrial scientists and engineers; and state, federal and international officials. The Radiation Center is a significant positive attraction on campus because visitors leave with a good impression of the facility and of Oregon State University.

The Radiation Center projects database continues to provide a useful way of tracking the many different aspects of work at the facility. The number of projects supported this year was 111. Reactor related projects comprised 78% of all projects.

The total research dollars in some way supported by the Radia-tion Center, as reported by our researchers, was$ I I million.

The actual total is likely higher. This year the Radiation Center provided service to 66 different organizations/institutions, 44%

of which were from other states and 39% of which were from outside the U. S. and Canada. So, while the Center's primary mission is local, it is also a facility with a national and interna-tional clientele.

The Radiation Center web site provides an easy way for po-tential users to evaluate the Center's facilities and capabilities as well as to apply for a project and check use charges. The address is: http://radiationcenter.oregonstate.edu.

Introduction The current annual report of the Oregon State University Radiation Center and TRIGA Reactor follows the usual for-mat by including information relating to the entire Radiation Center rather than just the reactor. However, the infonnation is still presented in such a manner that data on the reactor may be examined separately, if desired. It should be noted that all annual data given in this report covers the period from July I, 2021 through June 30, 2022. Cumulative reactor operating data in this report relates only to the LEU fueled core. This covers the period beginning July I, 2008 to the present date. For a summary of data on the reactor's two other cores, the reader is referred to previous annual reports.

In addition to providing general information about the activi-ties of the Radiation Center, this report is designed to meet the reporting requirements of the U.S. Nuclear Regulatory Com-mission, and the Oregon Department of Energy. Because of this, the report is divided into several distinct parts so that the reader may easily find the sections of interest.

OVERVIEW Overview of the Radiation Center The Radiation Center is a unique facility which serves the entire OSU campus, all other institutions within the Oregon University System, and many other universities and orga-nizations throughout the nation and the world. The Center also regularly provides special services to state and federal agencies, particularly agencies dealing with law enforce-ment, energy, health, and environmental quality, and renders assistance to Oregon industry. In addition, the Radiation Center provides permanent office and laboratory space for the OSU School of Nuclear Science and Engineering, the OSU Institute of Nuclear Science and Engineering, and for the OSU nuclear chemistry, radiation chemistry, geochemis-try and radiochemistry programs. There is no other university facility with the combined capabilities of the OSU Radiation Center in the western half of the United States.

Located in the Radiation Center are many items of special-ized equipment and unique teaching and research facilities.

They include a TRIGA Mark II research nuclear reactor; a 6°Co gamma irradiator; a large number of state-of-the art computer-based gamma radiation spectrometers and as-sociated high purity germanium detectors; and a variety of instruments for radiation measurements and monitoring.

Specialized facilities for radiation work include teaching and research laboratories with instrumentation and related equip-ment for performing neutron activation analysis and radio-tracer studies; laboratories for plant experiments involving radioactivity; a facility for repair and calibration of radiation protection instrwnentation; and facilities for packaging ra-dioactive materials for shipment to national and international destinations.

Also housed in the Radiation Center is the Advanced Ther-mal Hydraulics Research Laboratory (ATHRL), which is used for state-of-the-art two-phase flow experiments. Within ATHRL is located the NuScale Integral Systems Test-2 (NIST-2) facility is a nuclear power plant test facility that is instrumental in the design certification of the NuScale small modular reactor. The NIST-2 facility is constructed of all stainless-steel components and is capable of operation at full system pressure (1500 psia), and full system temperature (600°F).

All components are 1/3 scale height and 1/254.7 volume scale. The current testing program is examining methods for natural circulation startup, helical steam generator heat transfer performance, and a wide range of design basis, and beyond design basis, accident conditions.

The Advanced Nuclear Systems Engineering Laboratory (ANSEL) is the home to two major thermal-hydraulic test facilities-the High Temperature Test Facility (HTTF) and the Hydro-mechanical Fuel Test Facility (HMFTF). The HTTF is a 1/4 scale model of the Modular High Temperature Gas Reactor. The vessel has a ceramic lined upper head and shroud capable of operation at 850°C (well mixed helium).

The design will allow for a maximum operating pressure of l.0MPa and a maximum core ceramic temperature of l 600°C.

The nominal working fluid will be helium with a core power of approximately 600 kW (note that electrical heaters are used to simulate the core power). The test facility also includes a scaled reactor cavity cooling system, a circulator and a heat sink in order to complete the cycle. The HTTF can be used to simulate a wide range of accident scenarios in gas reac-tors to include the depressurized conduction cooldown and pressurized conduction cooldown events. The HMFTF is a testing facility which will be used to produce a database of hydro-mechanical information to supplement the qualifica-tion of the prototypic ultrahigh density U-Mo Low Enriched Uranium fuel which will be implemented into the U.S. High Perfomiance Research Reactors upon their conversion to low enriched fuel. This data in turn will be used to verify current theoretical hydro-and thermo-mechanical codes being used during safety analyses. The maximum operational pressure of the HMFTF is 600 psig with a maximum operational tem-perature of 450°F.

The Radiation Center staff regularly provides direct sup-port and assistance to OSU teaching and research programs.

Areas of expertise commonly involved in such efforts include nuclear engineering, nuclear and radiation chemistry, neutron activation analysis, radiation effects on biological systems, ra-diation dosimetry, environmental radioactivity, production of short-lived radioisotopes, radiation shielding, nuclear instru-mentation, emergency response, transportation of radioactive materials, instrument calibration, radiation health physics, radioactive waste disposal, and other related areas.

In addition to formal academic and research support, the Center's staff provides a wide variety of other services includ-ing public tours and instructional programs, and professional consultation associated with the feasibility, design, safety, and execution of experiments using radiation and radioactive materials.

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People This section contains a listing of all people who were residents of the Radiation Center or who worked a significant amount of time at the Center during this reporting period.

It should be noted that not all of the faculty and students who used the Radiation Center for their teaching and research are listed.

Swnmary infonnation on the number of people involved is given in Table VI. l, while individual names and projects are listed in TableVI.2.

Radiation Center Staff Steve Reese, Director Dina Pope, Office Manager Matthew Berry, Business Manager Erica Emerson, Receptionist Celia Oney, Reactor Supervisor, Senior Reactor Operator Robert Schickler, Reactor Administrator/ Assistant Direc-tor, Senior Reactor Operator Scott Menn, Senior Health Physicist Taighlor Story, Health Physicist Leah Mine, Neutron Activation Analysis Manager Steve Smith, Development Engineer, Senior Reactor Operator Chris Ku/ah, Senior Reactor Operator Dan Sturdevant, Custodian Emory Colvin, Reactor Operator (Student)

Maggie Goodwin, Senior Reactor Operator (Student)

Angelo Camargo, Reactor Operator (Student)

Lucia Gomez Hurtado, Reactor Operator (Student)

Griffen Latimer, Reactor Operator (Student)

Tracey Spoerer, Reactor Operator (Student)

Scott Veldman, Reactor Operator (Student)

Nathan Wiltbank, Reactor Operator (Student)

Gordon Kitchener, Reactor Operator (Student)

Lucien Litteral, Reactor Operator (Student)

Logan Schoening, Reactor Operator (Student)

Stephanie Juarez, Health Physics Monitor (Student)

Brandon Farjardo, Health Physics Monitor (Student)

Nicolaas VanDerZwan, Health Physics Monitor (Student)

Reactor Operations Committee Dan Harlan, Chair OSU Radiation Safety Leo Bobek UMass Lowell Samuel Briggs OSU School of Nuclear Science and Engineering Abi Tavakoli Farsoni OSU School of Nuclear Science and Engineering Scott Menn OSU Radiation Center Celia Oney (not voting)

OSU Radiation Center Steve Reese (not voting)

OSU Radiation Center Robert Schickler OSU Radiation Center Julie Tucker OSU Mechanical, Industrial and Manufacturing Engineering Haori Yang OSU School of Nuclear Science and Engineering 1-----------------------------------------:.-:.:.-:.:..-... -r-,.-... -7'.-..,,-"""-"!!'I.-~--*

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PEOPLE Professional and Research Faculty Samuel Briggs Assitant Professor, Nuclear Science and Engineering Alexander Cherney Assistant Professor Tianyi Chen Assistant Professor, Nuclear Science and Engineering Abi Farsoni Associate Professor, Nuclear Science and Engineering Izabela Gutowska Assistant Professor, Senior Research, Nuclear Science and Engineering David Hamby Professor Emeritus, Nuclear Science and Engineering Kathryn Higley School Head, Professor, Nuclear Science and Engineering Trevor Howard Assistant Professor, Senior Research Walter Loveland Professor, Chemistry Wade Marcum Associate Professor, Nuclear Science and Engineering Mitch Meyer Professor of Practice, Nuclear Science and Engineering Scott Menn Senior Health Physicist, Radiation Center LeahMinc Associate Professor, Anthropology Guillaume Mignot Assistant Professor, Senior Research, Nuclear Science and Engineering Celia Oney Reactor Supervisor, Radiation Center Camille Palmer Research Faculty and Instructor, Nuclear Science and Engineering Todd Palmer Professor, Nuclear Science and Engineering Alena Paulenova Associate Professor, Nuclear Science and Engineering Dina Pope Office Manager, Radiation Center Leila Ranjbar Instructor, Nuclear Science and Engineering Steven Reese Director, Radiation Center Robert Schickler Reactor Administrator/ Assistant Director, Radiation Center Aaron Weiss Sr. Faculty Research Assistant, Nuclear Science and Engineering Brian Woods Professor, Nuclear Science and Engineering Qiao Wu Professor, Nuclear Science and Engineering Haori Yang Assistant Professor, Nuclear Science and Engineering

Facilities Research Reactor The Oregon State University TRIGA Reactor (OSTR) is a water-cooled, swimming pool type research reactor which uses uranium/zirconium hydride fuel elements in a circular grid array. The reactor core is surrounded by a ring of graphite which serves to reflect neutrons back into the core. The core is situated near the bottom of a 22-foot deep water-filled tank, and the tank is surrounded by a concrete bioshield which acts as a radiation shield and structural support. The reactor is li-censed by the U.S. Nuclear Regulatory Commission to operate at a maximum steady state power of 1.1 MW and can also be pulsed up to a peak power of about 2500 MW.

The OSTR has a number of different irradiation facilities including a pneumatic transfer tube, a rotating rack, a thermal column, four beam ports, five sample holding (dummy) fuel elements for special in-core irradiations, an in-core irradiation tube, and a cadmium-lined in-core irradiation tube for experi-ments requiring a high energy neutron flux.

The pneumatic transfer facility (called a Rabbit) enables samples to be inserted and removed from the core in four to five seconds. Consequently, this facility is normally used for neutron activation analysis involving short-lived radionu-clides. On the other hand, the rotating rack is used for much longer irradiation of samples ( e.g., hours). The rack consists of a circular array of 40 tubular positions, each of which can hold two sample tubes. Rotation of the rack ensures that each sample will receive an identical irradiation.

The reactor's thermal column consists of a large stack of graphite blocks which slows down neutrons from the reac-tor core in order to increase thermal neutron activation of samples. Over 99% of the neutrons in the thermal column are thermal neutrons. Graphite blocks are removed from the thermal column to enable samples to be positioned inside for irradiation.

The beam ports are tubular penetrations in the reactor's main concrete shield which enable neutron and gamma radiation to stream from the core when a beam port's shield plugs are re-moved. The neutron radiography facility utilized the tangential beam port (beam port #3) to produce ASTM E545 category I radiography capability. The other beam ports are available for a variety of experiments.

If samples irradiated require a large neutron fluence, especially from higher energy neutrons, they may be placed in the in-core irradiation tube (ICIT), located in one of several in-core lattice positions.

The cadmium-lined in-core irradiation tube (CLICIT) enables samples to be irradiated in a high flux region near the center of the core. The cadmium lining in the facility elimi-nates thermal neutrons and thus permits sample exposure to higher energy neutrons only. The cadmium-lined end of this air-filled aluminum irradiation tube is inserted into an inner grid position of the reactor core which would normally be oc-cupied by a fuel element. It is the same as the ICIT except for the presence of the cadmium lining.

FACILITIES Instructional Uses of the OSTR Instructional use of the reactor is twofold. First, it is historical-ly used for classes in Nuclear Engineering, Radiation Health Physics, and Chemistry at both the graduate and undergradu-ate levels to demonstrate numerous principles which have been presented in the classroom. Basic neutron behavior is the same in small reactors as it is in large power reactors, and many demonstrations and instructional experiments can be performed using the OSTR which cannot be carried out with a commercial power reactor. Shorter-term demonstration experi-ments are also performed for many undergraduate students in Physics, Chemistry, and Biology classes, as well as for visitors from other universities and colleges, from high schools, and from public groups.

The second instructional application of the OSTR involves educating reactor operators, operations managers, and health physicists. The OSTR is in a unique position to provide such education since curricula must include hands-on experience at an operating reactor and in associated laboratories. The many types of educational programs that the Radiation Center pro-vides are more fully described in Part VI of this report.

During this reporting period the OSTR accommodated a number of different OSU academic classes and other academic programs. In addition, portions of classes from other Oregon universities were also supported by the OSTR.

Research Uses of the OSTR The OSTR is a unique and valuable tool for a wide variety of research applications and serves as an excellent source of neutrons and/or gamma radiation. The most commonly used experimental technique requiring reactor use is instrun1ental neutron activation analysis (INAA). This is a particularly sensitive method of elemental analysis which is described in more detail in Part VI.

The OSTR's irradiation facilities provide a wide range of neutron flux levels and neutron flux qualities which are suf-ficient to meet the needs of most researchers. This is true not only for INAA, but also for other experimental purposes such as the 39 Ar/40 Ar ratio and fission track methods of age dating samples.

Analytical Equipment The Radiation Center has a large variety of radiation detec-tion instrwnentation. This equipment is upgraded as neces-sary, especially the gamma ray spectrometers with their associated computers and germanium detectors. Additional equipment for classroom use and an extensive inventory of portable radiation detection instrw11entation are also avail-able.

Radiation Center nuclear instrumentation receives intensive e in both teaching and research applications. In addition, service projects also use these systems and the combined use often results in 24-hour per day schedules for many of the analytical instruments. Use of Radiation Center equipment extends beyond that located at the Center and instrumentation may be made available on a loan basis to OSU researchers in other departments.

Radioisotope Irradiation Sources The Radiation Center is equipped with a Gammacell 220 6°Co irradiator which is capable of delivering high doses of gamma radiation over a range of dose rates to a variety of materials.

Typically, the irradiator is used by researchers wishing to perform mutation and other biological effects studies; studies in the area of radiation chemistry; dosimeter testing; steril-ization of food materials, soils, sediments, biological speci-men, and other media; gamma radiation damage studies; and other such applications. In addition to the 6°Co irradiator, the Center is also equipped with a variety of smaller 6°Co, 137Cs, 226Ra, plutonium-beryllium, and other isotopic sealed sources of various radioactivity levels which are available for use as irradiation sources.

During this reporting period there was a diverse group of projects using the 6°Co irradiator. These projects included the irradiation of a variety of biological materials including dif-ferent types of seeds.

In addition, the irradiator was used for sterilization of several media and the evaluation of the radiation effects on different materials. Table III. I provides use data for the Gammacell 220 irradiator.

FACILITIES Laboratories and Classrooms The Radiation Center is equipped with a number of different radioactive material laboratories designed to accommodate research projects and classes offered by various OSU aca-demic departments or off-campus groups.

Instructional facilities available at the Center include a labo-ratory especially equipped for teaching radiochemistry and a nuclear instrwnentation teaching laboratory equipped with modular sets of counting equipment which can be configured to accommodate a variety of experiments involving the mea-surement of many types of radiation. The Center also has two student computer rooms.

In addition to these dedicated instructional facilities, many other research laboratories and pieces of specialized equip-ment are regularly used for teaching. In particular, classes are routinely given access to gamma spectrometry equipment located in Center laboratories. A number of classes also regu-larly use the OSTR and the Reactor Bay as an integral part of their instructional coursework.

There are two classrooms in the Radiation Center which are capable of holding about 35 and 18 students. In addition, there are two smaller conference rooms and a library suitable for graduate classes and thesis examinations. As a service to the student body, the Radiation Center also provides an office area for the student chapters of the American Nuclear Society and the Health Physics Society.

All of the laboratories and classrooms are used extensively during the academic year. A listing of courses accommodated at the Radiation Center during this reporting period along with their emollments is given in Table 111.2.

Instrument Repair & Calibration Facility The Radiation Center has a facility for the repair and calibra-tion of essentially all types of radiation monitoring instru-mentation. This includes instruments for the detection and measurement of alpha, beta, gamma, and neutron radiation.

It encompasses both high range instruments for measuring intense radiation fields and low range instruments used to measure environmental levels of radioactivity.

The Center's instrument repair and calibration facility is used regularly throughout the year and is absolutely essential to the continued operation of the many different programs carried out at the Center. In addition, the absence of any comparable facility in the state has led to a greatly expanded instrument calibration program for the Center, including calibration of es-sentially all radiation detection instrun1ents used by state and federal agencies in the state of Oregon. This includes instru-ments used on the OSU campus and all other institutions in the Oregon University System, plus instruments from the Oregon Health Division's Radiation Protection Services, the Oregon Department of Energy, the Oregon Public Utilities Commis-sion, the Oregon Health and Sciences University, the Army Corps of Engineers, and the U. S. Environmental Protection Agency.

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FACILITIES Purpose of Irradiation Sterilization Material Evaluation Biological Studies Botanical Studies Table 111.1 Gammacell 220 6°Co lrradiator Use Samples wood blocks, soil, wood, chitosan, COC ampouls, drug delivery system, medical devices, nanofibers, carnation leaves silcon polymers, Bi-Si mate-rial, carbon nanotubes mice cuttings, seeds, wheat seeds Dose Range (rads) l.4x 106 to 4.0x l 06 l.0xl06 to l.2xl08 5.0xl02 to 9.0xl02 2.0xl03 to 3.6xl04 Number of Irradiations 39 19 11 1,365.05 0.02 11 0.37

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Reactor Operating Statistics During the operating period between July I, 2021 and June 30, 2022, the reactor produced 1,013 MWH of thermal power during its 1,071 critical hours.

Experiments Performed During the current reporting period there were 5 approved reactor experiments available for use in reactor-related pro-grams. They are:

A-1 B-3 Nornrnl TRIGA Operation (No Sample Irradiation).

Irradiation of Materials in the Standard OSTR Ir-radiation Facilities.

B-29 Reactivity Worth of Fuel.

B-31 TRI GA Flux Mapping B-36 Irradiation of fissionable materials in the OSTR.

Of these available experiments, four were used during the reporting period Table IV.4 provides infornrntion related to the frequency of use and the general purpose of their use.

Inactive Experiments Presently 39 experiments are in the inactive file. This con-sists of experiments which have been performed in the past and may be reactivated. Many of these experiments are now perfonned under the more general experiments listed in the previous section. The following list identifies these inactive experiments.

A-2 Measurement of Reactor Power Level via Mn Activa-tion.

A-3 Measurement of Cd Ratios for Mn, In, and Au in Rotating Rack.

A-4 Neutron Flux Measurements in TRI GA.

A-5 Copper Wire Irradiation.

A-6 In-core Irradiation ofLiF Crystals.

A-7 Investigation ofTRIGA's Reactor Bath Water Tem-perature Coefficient and High Power Level Power Fluctuation.

B-1 B-2 Activation Analysis of Stone Meteorites, Other Mete-orites, and Terrestrial Rocks.

Measurements of Cd Ratios of Mn, In, and Au in Thennal Column.

B-4 Flux Mapping.

B-5 B-6 B-7 B-8 B-9 In-core Irradiation of Foils for Neutron Spectral Mea-surements.

Measurements ofNeutron Spectra in External Irradia-tion Facilities.

Measurements of Gamma Doses in External Irradia-tion Facilities.

Isotope Production.

Neutron Radiography.

B-10 Neutron Diffraction.

B-11 Irradiation of Materials Involving Specific Quantities of Uranium and Thorium in Standard OSTR Irradia-tion Facilities. (Discontinued Feb. 28th, 2018)

B-12 Exploratory Experiments. (Discontinued Feb. 28th, 2018)

B-13 This experiment number was changed to A-7.

B-14 Detection of Chemically Bound Neutrons.

B-15 This experiment number was changed to C-1.

B-16 Production and Preparation of 18F.

B-17 Fission Fragment Gamma Ray Angular Correlations.

B-18 A Study of Delayed Status (n, y) Produced Nuclei.

B-19 Instrument Timing via Light Triggering.

B-20 Sinusoidal Pile Oscillator.

B-21 Beam Port #3 Neutron Radiography Facility.

B-22 Water Flow Measurements Through TRIGA Core.

B-23 Studies Using TRIGA Themrnl Column. (Discontin-ued Feb. 28th, 20 I 8)

B-24 General Neutron Radiography.

B-25 Neutron Flux Monjtors.

B-26 Fast Neutron Spectrum Generator.

B-27 Neutron Flux Detennination Adjacent to the OSTR Core.

ANNUA~ REP.ORTi--

REACTOR B-28 Gamma Scan of Sodium (TED) Capsule.

B-30 NAA of Jet, Diesel, and Furnace Fuels.

B-32 Argon Production Facility.

B-33 Irradiation of Combustible Liquids in LS. (Discon-tinued Feb. 28th, 2018).

B-34 Irradiation of Enriched Uranium in the Neutron Ra-diography Facility. (Discontinued Feb. 28th, 2018).

B-35 Irradiation of Fissile Materials in the Prompt Gamma Neutron Activation Analysis (PGNAA)

Facility. (Discontinued Feb. 28th, 2018).

C-1 PuO2 Transient Experiment.

Unplanned Shutdowns There were 9 unplanned reactor shutdowns during the current reporting period. Table IV.5 details these events.

Activities Pursuant to10 CFR 50-59 There were 3 safety evaluation perfonned in support of the reactor this year. It was:

21-02 Revisions to OSTROP 6 (ROC Charter)

Revisions to the instructions for the ROC audit process.

21-03 Revisions to OSTR Operator Requalification Plan Documented the changes to the Requalification Plan that were sent to the NRC for approval..

22-01 Revisions to OSTROP 6 (ROC Charter)

Revision to the ROC Charter to match the updated Requalification Plan.

There were 14 new screens performed in support of the reac-tor this year. They were:

21-06 Beam Port #4 Additional Leak Repair Created a new device for ejecting epoxy into Beam Port #4 to stop the water leak, after the activity described in Screen 21 -04 did not completely stop the leak.

21-07 Revisions to OSTROPs 5, 13, 14, 15, and 16 Updated the procedures for tracking requalification requirements and for other required surveillance and maintenance.

21-08 Revisions to Emergency Response Implementing Procedures (ERIPs) and OSTROP 1, Annunciator Response Procedures Completely reformatted the Emergency Response Implementing Proce-dures to improve usability. Updated OSTROP I to improve navigation between it and the ERIPs.

21-09 Changes to OSTROPs 7, 12, and 19 Minor updates and revisions to the procedures for reactor water systems, control rod maintenance, and equipment maintenance and calibration.

21-10 Rotating Capability for the Vertical Irradiation Tubes (CLICIT)

Allowed installation of a motor and connecting components to rotate a sample within the existing in-core irradiation tubes.

22-01 Replacement of UPS Inverter System Replaced the old inverter with a new uninterruptible power supply (UPS).

22-02 Revisions to OSTROPs 2, 3, 15, 22 Minor updates and revisions to the procedures for the sta11up checklist, shutdown checklist, semiannual surveillance and maintenance, and emergency power system.

22-03 Replacement of Reactor Tank Water Level Probe Installed a new capacitive probe to measure primary tank water level.

22-04 Revisions to OSTROPs 2 and 3 Minor updates and revisions to the procedures for the startup and shut-down checklists.

22-05 Replacement of Cooling System Thermocouple Hous-ings Installed new housings for the thermocouples adjacent to the heat ex-changer on the primary and secondary piping.

22-06 Replacement of Bulk Water Thermocouples and Hous-ings Replaced the thermocouples at the top of the primary tank and their housings.

22-07 Disassembly of PGNAA Dismantled the Prompt Gamma Neutron Activation Analysis faci lity, which was no longer usable due to decreased flux caused by Beam Port 4 leak repair.

22-08 Increase in Safety Channel Time Constant Switched out a capacitor to increase the time constant on the Safety Channel in order to even out noise spikes.

22-09 Revisions to OSTROPs 23 and 26 Minor updates and revisions to the procedures for crane operation and background investigatons.

REACTOR Surveillance and Maintenance Non-Routine Maintenance July 2021 Worked on sealing the leak from Beam Port #4 with ep-oxy.

August 2021 Finished sealing the leak from Beam Port #4 with epoxy.

Shortened Beam Port #4 collimator to fit the modified beam port.

Reassembled PGNAA faci lity October 2021 Replaced power supply in the CAM/Stack digital chart recorder.

Cleaned the Safety rod foot switch and magnet, and lubri-cated the foot switch pin.

November 2021 Replaced the plug, switch, and wiring for the "Shield Plug Removed" annunciator in Beam Port #2.

December 2021 Temporarily installed rotating motor in the CLOCIT for preliminary testing.

January 2022 Removed, cleaned, and reinstalled the Neutron Radiogra-phy Facility large door motor.

February 2022 Repaired pipe fitting on the demineralizer pump.

Installed new Uninterruptible Power Supply (UPS) for System A load.

Replaced belts on fans for D-204 hood, D-102, and con-trol room.

March 2022 Removed solar temperature gauges from primary and sec-ondary piping. Repositioned the HX inlet/outlet thermo-couples in these wells.

April 2022 Disassembled PGNAA facility.

Changed the pre-resin filter on the demineralizer skid.

Replaced the two bulk tank water thermocouples.

May 2022 Modified the pneumatic transfer system to route samples to detectors set up in the reactor bay.

Switched out a capacitor in the Safety Channel to increase the detector's time constant.

Replaced the potentiometer that provides height indication for the Regulating rod.

June 2022 Cleaned the gears in the rotating specimen rack motor housing.

1: I. I.

I* I. I.

REACTOR Table IV.1 Present OSTR Operating Statistics Operational Data For LEU Core Annual Values (2021/2022)

MWH of energy produced 1,013 MWD of energy produced 42.2 Grams 235U used 59 Number of fuel elements added to(+) or removed(-) from 0

the core Number of pulses 0

Hours reactor critical 1,071 Hours at full power ( 1 MW) 1,009 Number of startup and shutdown checks 239 Number of irradiation requests processed 166 Number of samples irradiated 555 Cumulative Values 17,655 735.6 1,011 91 325 18,878 17,539 3,120 3,306 26,313

REACTOR Table IV.2 OSTR Use Time in Terms of Specific Use Categories OSTR Use Category Teaching ( departmental and others)

OSU research Off campus research Facility time Total Reactor Use Time Number of Users Two Three Four Five Six Seven Eight or more Total Multiple Use Time Annual Values (hours) 38 370 1,515 12 1,935 Table IV.3 OSTR Multiple Use Time Annual Values (hours) 405 146 38 8

0 0

0 597 Cumulative Values (hours) 13,819 25,351 61,867 7,930 108,967 Cumulative Values (hours) 12,169 6,826 3,767 1,612 540 176 29 25,119 ANNUAl! REP.ORli

REACTOR Table IV.4 Use of OSTR Reactor Experiments Experiment Research Teaching Facility Use Number A-1 0

3 5

B-3 141 8

5 B-29 0

0 0

B-31 1

2 0

B-36 1

0 0

Total 143 13 10 Table IV.5 Unplanned Reactor Shutdowns and Scrams Type of Event Number of Cause of Event Occurrences Safety Channel SCRAM 6

Small spike in power at full power External SCRAM 2

NRF shutter switch misaligned Safety and High Voltage SCRAM 1

Exceeded power during reactor startup (simultaneous)

Total 8

154 0

3 1

166

Figure IV.1 Monthly Surveillance and Maintenance (Sample Form)

OSTROP 13, Rev. LEU-10 Surveillance & Maintenance for the Month of in the year of 20 __

SURVEILLANCE & MAINTENANCE TARGET DATE DATE REMARKS LIMITS ASFOUND NOTTO BE

[SHADE INDICATES LICENSE REQUIREMENT]

DATE EXCEEDED*

COMPLETED INITIALS MAXIMUM HIGH:

INCHES 1

REACTOR TANK HIGH AND LOW WATER MOVEMENT LOW:

INCHES LEVEL ALARMS

+/-3 INCHES ANN :

2 REACTOR TANK TEMPERATURE ALARM FUNCTIONAL Tested @ __

CHECK 3A CHANNEL TEST OF STACK CAM GAS CHANNEL 8.5xl0'+/-

Aim.?

_cpm Ann.

8500 cpm 3B CHANNEL TEST OF STACK CAM PARTICULATE 8.5xl0'+/-

Ann.?

Ann.

CHANNEL 8500 cpm cpm 3C CHANNEL TEST OF REACTOR TOP CAM 8.5x l0'+/-

Ann.?

Ann.

PARTICULATE CHANNEL 8500 cpm

_cpm 4

MEASUREMENT OF REACTOR PRIMARY

<5 µmho\\cm WATER CONDUCTIVITY 5

PRIMARY WATER pH MEASUREMENT MIN: 5 NIA MAX:9 6

BULK SHIELD TANK WATER pH MIN: 5 NIA MEASUREMENT MAX:9 7

CHANGE LAZY SUSAN FILTER FILTER NIA CHANGED 8

REACTOR TOP CAM OIL LEVEL CHECK OSTROP 13.8 NEED OIL?

NIA 9

STACK CAM OIL LEVEL CHECK OSTROP 13.9 NEED OIL?

NIA 10 EMERGENCY DIESEL GENERATOR CHECKS

> 50%

Oil ok?

NIA Visual Hours NIA RABBIT SYSTEM RUN TIME Total hours/Hours NIA 11 on current brushes 12 OIL TRANSIENT ROD BRONZE BEARING WD40 NIA

~

Hoist ij 13 CRANE INSPECTION Hooks Rope NIA

~ 14 WATER MONITOR CHECK RCHPP 8 App. F.4 NIA

~

ii 15 EMERGENCY LIGHT TESTING 30 seconcs?

NIA i!

~

Date not to be exceeded is only applicable to shaded items. It is equal to the time completed last month plus six weeks.

- ~******************************************

- ~-*************************************** **

Figure IV.2 Quarterly Surveillance and Maintenance (Sample Form)

OSTROP 14, Rev. LEU-7 Surveillance & Maintenance for the 1st / 2nd / 3rd / 4th Quarter of 20 __

SURVEILLANCE & MAINTENANCE LIMITS AS FOUND TARGET DATE NOTTO DATE REMA RKS &

[SHA DE IN DI CATES LICENSE REQUIREMENT]

DATE BE EXCEEDED*

COMPLETED INITIALS I

REACTOR OPERATION COMM ITTEE (ROC) AU DIT Q UARTERLY 2

INTERNAL AUDIT OF OSTROPS QUA RTERLY 3

QUARTERLY ROC MEETING QUARTERLY 4

ERP INSPECTIONS QUARTERLY 5

ROTATING RACK CHECK FOR UNKNOWN SAMPLES EMPTY 6

WATER MONITOR ALARM CHECK FUNCTIONAL 7A CHECK FILTER TAPE SPEED ON STACK MONITOR

!"/HR +/- 0.2 7B CHECK FILTER TAPE SPEED ON CAM MON ITOR

!"/HR +/- 0.2 8

INCORPORATE 50.59 & ROCAS INTO DOCUMENTATION QUARTERLY 9

EMERGENCY CALL LIST QUARTERLY ARM SYSTEM ALARM CHECKS ARM 1

2 3S 3E 4

5 7

8 9

10 11 12 AUD 10 FUNCTIONAL LIGHT PANEL ANN I I OPERATOR LOG QUARTERLY

Date not to be exceeded is only applicable to shaded items. It is equal to the time completed last quarter plus four months.

Figure IV.3 Semi-Annual Surveillance and Maintenance (Sample Form)

OSTROP 15, Rev. LEU-11 Surveillance & Maintenance for the 1st / 2nd Half of 20 SURVEILLANCE & MA INTENANCE TARGET DATE NOT DATE REMARKS

[SHADE INDICATES LICENSE REQU IREMENT]

LIMITS AS FOUND DATE TOBE COMPLETED EXCEEDED*

INITIALS NO WITHDRAW NEUTRON SOURCE COUNT RATE INTERLOCK 2:5 cps TRANSIENT ROD AIR INTERLOCK NO PULSE CHANNEL TESTS PULSE MODE ROD MOVEMENT INTERLOCK**

NO MOVEMENT I

OF REACTOR INTERLOCKS MAXIMUM PULSE REACTIVITY INSERTION

S $2.25 TWO ROD WITHDRAWAL PR.HOI-IIBIT I ONLY PULSE PROHIBIT ABOVE I kW 2: 1 kW PREVIOUS PULSE DATA FOR COMPAR.JON

20%

PULSE # --

PULSE #

2 TEST PULSE**

CHANGE MW MW oc oc 3

CLEANfNG & LUBRICATION OF TRANSIENT ROD CARRI ER fNTERNAL BARREL 4

LUBRICATION OF BALL-NUT DRJVE ON TRANSIENT ROD CARRIER 5

LUBRICATION OF THE ROTATING RACK BEARJNGS WD-40 6

CONSOLE CHECK LIST OSTROP 15.VI I HIGH 7

fNV ERTER MAfNTENANCE See User Manual

~

8 STANDARD CONTROL ROD MOTOR CHECKS LO-17 Bodine Oil i *Date not to be exceeded is only applicable to shaded items. It is equal to the date last time plus 7 1/2 months.

~

11 J.:

i... 1*,.i ******************************************

- -t*****************************************

~

Figure IV.3 {continued!

I Semi-Annual Surveillance and Maintenance (Sample Form) 1------------------------------------------------------------....J OSTROP 15, Rev. LEU-11 Surveillance & Maintenance for the 1st / 2nd Half of 20 SURVEILLANCE & MAINTENANCE

[SHADE INDICATES LICENSE REQUIREMENT) 9 FUNCTIONAL CHECK OF HOLDUP TANK WATER LEVEL ALARM BRUSH INSPECTION LIMITS OSTROP IS. IX JO INSPECTION OF TH E PNEUMATIC TRANSFER SYSTEM Observed SAMPLE INSERTION AND WITHDRAWAL insertion/withdrawal time

Date not to be exceeded is only applicable to shaded items. It is equal to the date last time plus 7 1/2 months.

AS FOUND HIGH __

FULL ---

TARGET DATE DATE NOT DATE REMARKS &

TO BE EXCEEDED*

COMPLETED INlTIALS

- These tests may be postponed while pulsing is precluded. I fit has been more than 7.5 months since the previous test, the test shall be performed before resuming pulsing.

Figure IV.4 Annual Surveillance and Maintenance (Sample Form)

OSTROP 16, Rev. LEU-10 Annual Surveillance and Maintenance for 20 SURVEILLANCE AND MAINTENANCE AS TARGET DATE NOT DATE REMARKS

[SHADE INDICATES LICENSE REQUIREMENT]

LIMITS FOUND DATE TOBE COMPLETED EXCEEDED*

INITIALS l

BIENNIAL INSPECTION OF FFCRS OSTROP 12.0 CONTROL RODS :

TRANS 2

STANDARD CO TROL ROD DRIVE INSPECTO OSTROP 16.2 3

CONTROL ROD CALIBRATION:

OSTROP 9.0 TRANS SAFE SHIM REG CONTROL ROD SCRAM

.:::2 sec 4

WITHDRAWAL INSERTION &

W/D

<50 sec SCRAM TIMES INSERT

.::;50 sec FUEL ELEMENT INSPECTION FOR SELECTED

~ L.Uo/o tr, s inspected.

5 ELEMENTS No damage nP.tP.riorntion or cu,p l) 6 REACTOR POWER CALIBRATION OSTROP8 7

FUEL ELEMENT TEMPERATURE CHANNEL Per Checklist CALIBRATION 8

CALIBRATION OF REACTOR TANK WATER TEMP OSTROP 16.8 TEMPERATURE METERS CONTINUOUS Particulate Monitor 9

AIR MONITOR K}as Monitor RCHPP 18 CALIBRATION 10 CAM OIL/GREASE MAINTENANCE STACK MONITOR Particulate Monitor RCHPP 11 CALIBRATION 18 & 26 Gas Monitor 12 STACK MONITOR OIL/GREASE MAINTENANCE 13 AREA RADIATION MONITOR CALIBRATION RCHPP18

Date not be exceeded is only applicable to shaded items. It is equal to the date completed last year plus 15 months.

For biennial license requirements it is equal to the date comoleted last time olus 2 1/2 vears.

1.,, ******.***********************************

1

14 t*****************************************

i Figure IV.4 (continued)

Annual Surveillance and Maintenance {Sample Form}

OSTROP 16, Rev. LEU-10 Annual Surveillance and Maintenance for 20 SURVEILLANCE AND MAINTENANCE AS TARGET DATE NOT DATE REMARKS

[SHADE INDICATES LICENSE REQUIREMENT]

LIMITS FOUND DATE TOBE COMPLETED

& INITIALS EXCEEDED*

14 CORE EXCESS

$7.55 DAMPERS

]ST FLOOR 15 REACTOR BAY VENTILATION SYSTEM SHUTDOWN TEST CLOSE IN <5 SECONDS 4T1-1FLOOR 16 CRANE INSPECTION 17 SNM PHYSICAL INVENTORY NIA NIA OCTOBER 18 MATERIAL BALANCE REPORTS NIA NIA NOVEMBER CFD TRAINING GOOD SAM TRAINING ERP REVIEW MEMO ERP DRILL CPR CERT FOR:

CPR CERT FOR:

EMERGENCY 19

RESPONSE

FIRST AID CERT FOR:

PLAN FIRST AID CERT FOR:

EVACUATION DRILL AUTO EVAC ANNOUNCEMENT TEST ERP EQUIPMENT INVENTORY BIENNIAL SUPPORT AGREEMENTS PSPREVIEW MEMO PSPDRILL PHYSICAL PART 37 PLAN REVIEW 20 SECURITY PART 37 PLAN DRILL PLAN DPS TRAINING LOCK/SAFE COMBO CHANGES AUTHORIZATION LIST UPDATE

Date not be exceeded is only applicable to shaded items. It is equal to the date completed last year plus 15 months.

For biennial license requirements, it is equal to the date completed last time plus 2 112 years.

Figure IV.4 (continued)

Annual Surveillance and Maintenance (Sample Form)

OSTROP 16, Rev. LEU-10 Annual Surveillance and Maintenance for 20 SURVEILLANCE AND MAINTENANCE AS TARGET DA1.t NUl DATE REMARKS

[SHADE INDICATES LICENSE REQUIREMENT]

LIMITS FOUND DATE TOBE COMPLETED

& INITIALS F.XC:FPnPn

21 ANNUAL REPORT NOV 1 OCT!

NOVI 22 ANNUAL TEST OF RECORD RETRIEVABILITY ANNUAL 23 KEY INVENTORY ANNUAL 24 REACTOR TANK AND CORE COMPONENT NO WHITE SPOTS INSPECTION 25 EMERGENCY LIGHT LOAD TEST 26 NEUTRON RADIOGRAPHY FACILTIY INTERLOCKS 27 PGNAA FACILITY INTERLOCKS 28 EXPERIMENTS REVIEW MEMO 29 REACTOR OPERATOR LICENSE CONDITIONS

Date not be exceeded is only applicable to shaded items. It is equal to the date completed last year plus 15 months.

For biennial license requirements, it is equal to the date completed last time plus 2 1/2 years.

Ct:

0 I:-

(.)

<t w

Ct:

Radiation Protection Introduction The purpose of the radiation protection program is to ensure the safe use of radiation and radioactive material in the Cen-ter's teaching, research, and service activities, and in a similar manner to the fulfillment of all regulatory requirements of the State of Oregon, the U.S. Nuclear Regulatory Commission, and other regulatory agencies. The comprehensive nature of the program is shown in Table V.l, which lists the program's major radiation protection requirements and the perfonnance frequency for each item.

The radiation protection program is implemented by a staff consisting of a Senior Health Physicist, a Health Physicist, and several part-time Health Physics Monitors (see Part II).

Assistance is also provided by the reactor operations group, the neutron activation analysis group, the Scientific Instrument Technician, and the Radiation Center Director.

The data contained in the following sections hav nb je been prepared to comply with the current requirements of Nuclear Regulatory Commission (NRC) Facility License No. R-106 (Docket No. 50-243) and the Technical Specifications con-tained in that license. The material has also been prepared in compliance with Oregon Department of Energy Rule No.

345-30-010, which requires an annual report of environmental effects due to research reactor operations.

Within the scope of Oregon State University's radiation pro-tection program, it is standard operating policy to maintain all releases of radioactivity to the unrestricted environment and all exposures to radiation and radioactive materials at levels which are consistently "as low as reasonably achievable" (ALARA).

Environmental Releases The annual reporting requirements in the OSTR Technical Specifications state that the licensee (OSU) shall include "a summary of the nature and amount of radioactive effluents released or discharged to the environs beyond the effective control of the licensee, as measured at, or prior to, the point of such release or discharge." The liquid and gaseous effluents released, and the solid waste generated and transferred are discussed briefly below. Data regarding these effluents are also summarized in detail in the designated tables.

Liquid Effluents Released Liquid Ejjl.uents Oregon State University has implemented a policy to reduce the volume of radioactive liquid effluents to an absolute mini-mum. For example, water used during the ion exchanger resin change is now recycled as reactor makeup water. Waste water 1----~----------------------------*

RADIATION PROTECTION from Radiation Center laboratories and the OSTR is collected at a holdup tank prior to release to the sanitary sewer. Liquid effluent are analyzed for radioactivity content at the time it is released to the collection point. For this reporting period, the Radiation Center and reactor made seven liquid effluent releases to the sanitary sewer. All Radiation Center and reac-tor facility liquid effluent data pertaining to this release are contained in Table V.2.

Liquid Waste Generated and Transferred Liquid waste generated from glassware and laboratory experi-ments is transferred by the campus Radiation Safety Office to its waste processing facility. The annual summary of liquid waste generated and transferred is contained in Table V.3.

Airborne Effluents Released Airborne effluents are discussed in terms of the gaseous com-ponent and the particulate component.

Gaseous E.ffiuents Gaseous effluents from the reactor facility are monitored by the reactor stack effluent monitor. Monitoring is continuous, i.e., prior to, during, and after reactor operations. It is normal for the reactor facility stack effluent monitor to begin opera-tion as one of the first systems in the morning and to cease operation as one of the last systems at the end of the day. All gaseous effluent data for this reporting period are summarized in Table V.4.

Particulate effluents from the reactor facility are also moni-tored by the reactor facility stack effluent monitor.

Particulate E.ffiuents Evaluation of the detectable particulate radioactivity in the stack effluent confirmed its origin as naturally-occurring radon daughter products, within a range of approximately 3xl 0-11

µCi/ml to 1 x 10-9 µCi/ml. This particulate radioactivity is predominantly 214Pb and 214Bi, which is not associated with reactor operations.

There was no release of particulate effluents with a half life greater than eight days and therefore the reporting of the aver-age concentration of radioactive particulates with half lives greater than eight days is not applicable.

Solid Waste Released Data for the radioactive material in the solid waste generated and transferred during this reporting period are summarized in Table V.5 for both the reactor facility and the Radiation Center.

Solid radioactive waste is routinely transferred to OSU Radia-tion Safety. Until this waste is disposed ofby the Radiation Safety Office, it is held along with other campus radioactive waste on the University's State of Oregon radioactive materi-als license.

Solid radioactive waste is disposed ofby OSU Radiation Safety by transfer to the University's radioactive waste dis-posal vendor.

Personnel Dose The OSTR annual reporting requirements specify that the licensee shall present a summary of the radiation exposure received by facility personnel and visitors. The summary in-cludes all Radiation Center personnel who may have received exposure to radiation. These personnel have been categorized into six groups: facility operating personnel, key facility research personnel, facilities services maintenance personnel, students in laboratory classes, police and security personnel, and visitors.

Facility operating personnel include the reactor operations and health physics staff. The dosimeters used to monitor these in-dividuals include quarterly TLD badges, quarterly track-etch/

albedo neutron dosimeters, monthly TLD (finger) extremity dosimeters, pocket ion chambers, electronic dosimetry.

Key facility research personnel consist of Radiation Center staff, faculty, and graduate students who perform research using the reactor, reactor-activated materials, or using other research facilities present at the Center. The individual dosim-etry requirements for these personnel will vary with the type of research being conducted, but will generally include a quar-terly TLD film badge and TLD (finger) extremity dosimeters.

If the possibility of neutron exposure exists, researchers are also monitored with a track-etch/ albedo neutron dosimeter.

Facilities Services maintenance personnel are nom1ally issued a gamma sensitive electronic dosimeter as their basic monitor-ing device.

Students attending laboratory classes are issued quarterly XJ3(y) TLD badges, TLD (finger) extremity dosimeters, and track-etch/albedo or other neutron dosimeters, as appropriate.

RADIATION PROTECTION Students or small groups of students who attend a one-time lab demonstration and do not handle radioactive materials are usually issued a gamma sensitive electronic dosimeter. These results are not included with the laboratory class students.

OSU police and security personnel are issued a quarterly XJ3(y) TLD badge to be used during their patrols of the Radia-tion Center and reactor facility.

Visitors, depending on the locations visited, may be issued gamma sensitive electronic dosimeters. OSU Radiation Center policy does not normally allow people in the visitor category to become actively involved in the use or handling of radioac-tive materials.

An annual summary of the radiation doses received by each of the above six groups is shown in Table V.6. There were no personnel radiation exposures in excess of the limits in 10 CFR 20 or State of Oregon regulations during the reporting period.

Facility Survey Data The OSTR Technical Specifications require an annual sum-mary of the radiation levels and levels of contamination observed during routine surveys performed at the facility. The Center's comprehensive area radiation monitoring program encompasses the Radiation Center as well as the OSTR, and therefore monitoring results for both facilities are reported.

Area Radiation Dosimeters Area monitoring dosimeters capable of integrating the radia-tion dose are located at strategic positions throughout the reactor facility and Radiation Center. All of these dosimeters contain at least a standard personnel-type beta-gamma film or TLD pack. In addition, for key locations in the reactor facility and for certain Radiation Center laboratories a CR-39 plas-tic track-etch neutron detector has also been included in the monitoring package.

The total dose equivalent recorded on the various reactor facil-ity dosimeters is listed in Table V. 7 and the total dose equiva-lent recorded on the Radiation Center area dosimeters is listed in Table V.8. Generally, the characters following the Monitor Radiation Center (MRC) designator show the room number or location.

Routine Radiation and Contamination Surveys The Center's program for routine radiation and contamination surveys consists of daily, weekly, and monthly measurements throughout the TRJGA reactor facility and Radiation Center.

The frequency of these surveys is based on the nature of the radiation work being carried out at a particular location or on other factors which indicate that ~urveillance over a specific area at a defined frequency is desirable.

The primary purpose of the routine radiation and contamina-tion survey program is to assure regularly scheduled surveil-lance over selected work areas in the reactor facility and in the Radiation Center, in order to provide current and characteristic data on the status of radiological conditions. A second objec-tive of the program is to assure frequent on-the-spot personal observations (along with recorded data), which will provide advance warning of needed corrections and thereby help to ensure the safe use and handling of radiation sources and radioactive materials. A third objective, which is really derived from successful execution of the first two objectives, is to gath-er and document information which will help to ensure that all phases of the operational and radiation protection programs are meeting the goal of keeping radiation doses to personnel and releases of radioactivity to the environment "as low as reason-ably achievable" (ALARA).

The annual summary of radiation and contamination levels measured during routine facility surveys for the applicable reporting period is given in Table V.9.

Environmental Survey Data The annual reporting requirements of the OSTR Technical Specifications include "an annual summary of environmental surveys performed outside the facility."

Gamma Radiation Monitoring On-site Monitoring Monitors used in the on-site gamma environn1ental radiation monitoring program at the Radiation Center consist of the re-actor facility stack effluent monitor described in Section V and nine environmental monitoring stations.

During this reporting period, each fence environmental station utilized an LiF TLD monitoring packet supplied and processed by Mirion Technologies, Inc., Irvine, California. Each packet contained three LiF TLDs and was exchanged quarterly for a total of 108 samples during the reporting period (9 stations x 3 TLDs per station x 4 quarters). The total number ofTLD samples for the reporting period was 108. A summary of the TLD data is also shown in Table V. l 0.

RADIATION PROTECTION From Table V. l O it is concluded that the doses recorded by the dosimeters on the TRIGA facility fence can be attributed to natural back-ground radiation, which is about 110 mrem per year for Oregon (Refs. 1, 2).

Off-site Monitoring The off-site gamma environmental radiation monitoring program consists of twenty monitoring stations surrounding the Radiation Center (see Figure V.l) and six stations located within a 5 mile radius of the Radiation Center.

Each monitoring station is located about four feet above the ground (MRCTE 21 and MRCTE 22 are mounted on the roof of the EPA Laboratory and National Forage Seed Laboratory, respectively). These monitors are exchanged and processed quarterly, and the total number ofTLD samples during the current one-year reporting period was 240 (20 stations x 3 chips per station per quarter x 4 quarters per year). The total number ofTLD samples for the reporting period was 240. A summary ofTLD data for the off-site monitoring stations is given in Table V.11.

After a review of the data in Table V.11, it is concluded that, like the dosimeters on the TRIGA facility fence, all of the doses recorded by the off-site dosimeters can be attributed to natural background radiation, which is about 110 mrem per year for Oregon (Refs. 1, 2).

Soil, Water, and Vegetation Surveys The soil, water, and vegetation monitoring program consists of the collection and analysis of a limited number of samples in each category on a annual basis. The program monitors highly unlikely radioactive material releases from either the TRIGA reactor facility or the OSU Radiation Center, and also helps indicate the general trend of the radioactivity concentration in each of the various substances sampled. See Figure V.l for the locations of the sampling stations for grass (G), soil (S), water (W) and rainwater (RW) samples. Most locations are within a 1000 foot radius of the reactor facility and the Radiation Center. In general, samples are collected over a local area having a radius of about ten feet at the posi-tions indicated in Figure V. l.

There are a total of22 sampling locations: four soil loca-tions, four water locations (when water is available), and fourteen vegetation locations.

The annual concentration of total net beta radioactivity (mi-nus tritiwn) for samples collected at each environmental soil, water, and vegetation sampling location (sampling station) is listed in Table V.12. Calculation of the total net beta disinte-gration rate incorporates subtraction of only the counting sys-tem back-grow1d from the gross beta counting rate, followed by application of an appropriate counting system efficiency.

The annual concentrations were calculated using sample results which exceeded the lower limit of detection (LLD),

except that sample results which were less than or equal to the LLD were averaged in at the corresponding LLD concentra-tion. Table V.13 gives the concentration and the range of val-ues for each sample category for the current reporting period.

As used in this report, the LLD has been defined as the amount or concentration of radioactive material (in tenns of

µCi per unit volume or unit mass) in a representative sample, which has a 95% probability of being detected.

Identification of specific radionuclides is not routinely carried out as part of this monitoring program, but would be conduct-ed if unusual radioactivity levels above natural background were detected. However, from Table V.12 it can be seen that the levels of radioactivity detected were consistent with naturally occurring radioactivity and comparable to values reported in previous years.

Radioactive Materials Shipments A sun1mary of the radioactive material shipments originating from the TRIGA reactor facility, NRC license R-106, is shown in Table V.14. A similar summary for shipments originating from the Radiation Center's State of Oregon radioactive ma-terials license ORE 90005 is shown in Table V.15. A summary of radioactive material shipments exported under Nuclear Regulatory Commission general license IO CFR 110.23 is shown in Table V.16.

References

1.

U. S. Environmental Protection Agency, "Estimates oflonizing Radiation Doses in the United States, 1960-2000," ORP/CSD 72-1, Office of Radiation Programs, Rockville, Maryland (1972).

2. U. S. Environmental Protection Agency, "Radiologi-cal Quality of the Environment in the United States, 1977," EPA 520/1-77-009, Office of Radiation Pro-grams; Washington, D.C. 20460 (1977).

RADIATION PROTECTION Table V.1 Radiation Protection Program Requirements and Frequencies Frequency Daily/Weekly/Monthly Monthly As Required Quarterly Semi-Annual Annual Radiation Protection Requirement Perform Routing area radiation/contamination monitoring Collect and analyze TRIGA primary, secondary, and make-up water.

Exchange personnel dosimeters, and review exposure reports.

Inspect laboratories.

Calculate previous month's gaseous effluent discharge.

Process and record solid waste and liquid effluent discharges.

Prepare and record radioactive material shipments.

Survey and record incoming radioactive materials receipts.

Perform and record special radiation surveys.

Perfom1 thyroid and urinalysis bioassays.

Conduct orientations and training.

Issue radiation work pem1its and provide health physics coverage for maintenance operations.

Prepare, exchange and process environmental TLD packs.

Conduct orientations for classes using radioactive materials.

Collect and analyze samples from reactor stack effluent line.

Exchange personnel dosimeters and inside area monitoring dosimeters, and review exposure reports.

Leak test and inventory sealed sources.

Conduct floor survey of corridors and reactor bay.

Calibrate portable radiation monitoring instruments and personnel pocket ion chambers.

Calibrate reactor stack effluent monitor, continuous air monitors, remote area radiation monitors, and air samplers.

Measure face air velocity in laboratory hoods and exchange dust-stop filters and HEPA filters as necessary.

Inventory and inspect Radiation Center emergency equipment.

Conduct facility radiation survey of the 60Co irradiators.

Conduct personnel dosimeter training.

Update decommissioning logbook.

Collect and process environmental soil, water, and vegetation samples.

ANNUAl! REP.ORli

- -t*****************************************

I

0

)>

0 -

~

Table V.2

-0 z Monthly Summary of Liquid Effluent Release to the Sanitary Sewerl11

0 Specific Activity for Total Quantity of Average Percent of Applicable 0

Total Each Detectable Radio-Total Volume

-t Date of Each Detectable Concentration Monthly Average m

Quantity of Detectable nuclide in of Liquid Effluent

()

Discharge Radioactivity Radionuclide in the Waste, Where the Radionuclide Of Released Concentration for Released Including

-t (Month and Released the Waste Release Concentration Released in the Radioactive Material Released Radioactive Diluent 0

Year)

(Curies)

Was>l x 10-7 Waste at the Point of Release Material (gal) z

( µCi mI*1)

(Curies)

( µCi mI-1)

(%)<2)

APRIL2022 3.98x10*4 H-3 H-3, 1.08xl0*5 H-3, 3.98x10*4 H-3, 1.08xl0*5 H-3, 0.108 9,725 Annual Total for Radiation 3.98x10*4 H-3 H-3, 1.08xl0*5 H-3, 3.98x10*4 H-3, 1.08xl0*5 H-3, 0.108 9,725 Center

-~

( !) The OSU operational policy is to subtract only detector background from the water analysis data and not background radioactivity in the Corvallis city water.

(2) Based on values listed in IO CFR 20, Appendix B to 20.100 I - I 0.240 I, Table 3, which are applicable to sewer disposal.

RADIATION PROTECTION Table V.3 Annual Summary of Liquid Waste Generated and Transferred Volume of Liquid Detectable Total Quantity of Dates of Waste Pickup Origin of Liquid (I)

Radionuclides Radioactivity in the for Transfer to the Waste Waste Packaged Waste Processing (gallons) in the Waste Waste (Curies)

Facility TRIGA 55 Mn-54, Co-60 3.65xl0-6 7/28/2021 Radiation Center NIA NIA NIA NIA Laboratories TOTAL 55 See above 3.65xl0-6 (I)

OSTR and Radiation Center liquid waste is picked up by the Radiation Safety Office for transfer to its waste processing facility for final packaging.

Table V.4 Monthly TRIGA Reactor Gaseous Waste Discharges and Analysis Estimated Fraction of the Technical Total Total Atmospheric Diluted Specification Estimated Estimated Quantity of Concentration of Month Activity Argon-41 Argon-41 at Point of Annual Average Released (Curies)

Released<1) (Curies)

Release Argon-41

(µCi/cc)

Concentration Limit (%)

July 0.00 0.00 0.00xl0 0.00 August 0.82 0.82 6.30xl0-8 1.58 September 1.19 1.19 9.49xl0-8 2.37 October 2.17 2.17 l.67x10-7 4.18 November 1.66 1.66 l.33x10-7 3.33 December 1.52 1.52 l.l 7x10-7 2.92 January 2.06 2.06 1.59xl0-7 3.97 February 1.89 1.89 l.62x10-7 4.04 March 1.44 1.44 l.l lxI0-7 2.76 April 2.92 2.92 2.34x10-7 5.85 May 2.79 2.79 2.14x10-7 5.36 June 2.44 2.44 l.95x10-7 4.88 TOTAL

('21-'22) 20.90 20.90 1.37x10-7<2>

3.44 (I) Routine gamma spectroscopy analysis of the gaseous radioactivity in the OSTR stack discharge indicated the only detectable radionuclide was argon-41.

(2) Annual Average.

~---------~~~;;::,-----'*

RADIATION PROTECTION Table V.5 Annual Summary of Solid Waste Generated and Transferred Volume of Detectable Total Quantity Dates of Waste Pickup Origin of Solid Waste Radionuclides of Radioactivity for Transfer to the OSU Solid Waste Packaged<1J in the Waste in Solid Waste Waste Processing (Cubic Feet)

(Curies)

Facility TRIGA Co-58, Co-60, Sc-46, Cr-51,

12/17/2021 Reactor 18 Mn-54, Se-75, Sb-124, Fe-59, Zn-65, 1.456xl 0-3 Facility Ag-ll0m, As-74, Eu-152 4/28/2022 Cd-109, Eu-152, Cf-252, U-238, Pu-240, Pu-242, Pu-239, Am-241, Th-232, Ra-Radiation 226, Am-243, Co-60, Tl-204, Ba-133, Eu-154, La-140, Sb-125, Na-22, Cs-137, 12/17/2021 Center 31 7.81 3x10-3 Laboratories Eu-155, Po-210, Sr-90, H-d, Co-57, Te-4/28/2022 123m, Cr-51, Sn-11 3, Sr-85, Y-88, nat U, Th-228, Pm-147, Ce-139, Hg-203, Bi-207, Ga-148, Ho-166m TOTAL 49 See Above 9.269x10-3 (I) OSTR and Radiation Center lab waste is picked up by OSU Radiation Safety for transfer to its waste processing facility for final packaging.

RADIATION PROTECTION Table V.6 Annual Summary of Personnel Radiation Doses Received Average Annual Greatest Individual Total Person-mrem Dose<1J Dose<1J for the Group(])

Personnel Group Whole Body Extremities Whole Body Extremities Whole Body Extremities (mrem)

(mrem)

Facility Operating 94 288 211 813 755 2,307 Personnel Key Facility Research 6

91 83 63 1 107 908 Personnel Facilities Services Maintenance 0

NIA 0

NIA Personnel Laboratory Class 6

35 90 473 363 1,131 and Students Campus Police and 0

NIA 0

NIA Security Personnel Visitors 1

NIA 5.1 NIA 82 NIA On site-Contractors 51 129 51 129 51 129 (l) "NIA" indicates that there was no extremity monitoring conducted or required for the group.

* * * * * * * * * * * * * * *

I.

le * * * * * * * * * * * * * * * * * * * * *

RADIATION PROTECTION Table V.7 Total Dose Equivalent Recorded on Area Dosimeters Located Within the TRIGA Reactor Facility Total Dose Equivalent<1x2J Monitor TRI GA Reactor Recorded I.D.

Facility Location XB(y)

Neutron (See Figure V. l)

(mrem)

MRCTNE D104:

North Badge East Wall 162 ND MRCTSE D104:

South Badge East Wall 409 ND MRCTSW D104:

South Badge West Wall 295 ND MRCTNW D104:

North Badge West Wall 139 ND MRCTWN D104:

West Badge North Wall 491 ND MRCTEN D104:

East Badge North Wall 261 ND MRCTES D104:

East Badge South Wall 3,355 ND MRCTWS D104:

West Badge South Wall 519 ND MRCTTOP D104:

Reactor Top Badge 928 ND MRCTHXS D104A: South Badge HX Room 605 ND MRCTHXW D104A: West Badge HX Room 302 ND MRCD-302 D302:

Reactor Control Room 381 ND MRCD-302A D302A: Reactor Supervisor's Office 71 ND MRCBPl D104: Beam Port Number 1 330 ND MRCBP2 D104: Beam Port Number 2 206 ND MRCBP3 D104: Beam Port Number 3 1,562 ND MRCBP4 D104: Beam Port Number 4 1,100 ND

( I) The total recorded dose equivalent values do not include natural background contribution and reflect the summation of the results of four quarterly beta-gamma dosimeters or four quarterly fast neutron dosimeters for each location. A total dose equivalent of"ND" in-dicates that each of the dosimeters during the reporting period was less than the vendor's gamma dose reporting threshold of 10 mrem or that each of the fast neutron dosimeters was less than the vendor's threshold of l O mrem. "N/A" indicates that there was no neutron monitor at that location.

(2) These dose equivalent values do not represent radiation exposure through an exterior wall directly into an unrestricted area.

RADIATION PROTECTION Monitor I.D.

MRCAl00 MRCBRF MRCA120 MRCA120A MRCA126 MRCCO-60 MRCA130 MRCA132 MRCA138 MRCBl00 MRCB114 MRCB119-l MRCB119-2 MRCB119A MRCB120 MRCB122-2 MRCB122-3 MRCB124-l MRCB124-2 MRCB124-6 MRCB128 MRCB136 MRCCl00 Table V.8 Total Dose Equivalent Recorded on Area Dosimeters Located Within the Radiation Center Total Recorded Radiation Center Dose Equivalent<1l Facility Location X/3(y)

Neutron (See Figure V.l)

(mrem)

Al00:

Receptionist's Office 0

ND A102H: Front Personnel Dosimetry Storage Rack 25 ND A120:

Stock Room 30 ND Al20A: NAA Temporary Storage 95 ND A126:

Radioisotope Research Laboratory 143 ND A128:

6°Co Irradiator Room 759 ND A130:

Shielded Exposure Room 0

ND A132:

TLD Equipment Room 0

ND A138:

Health Physics Laboratory 0

ND Bl00:

Gamma Analyzer Room (Storage Cave) 160 ND B114:

Lab (226Ra Storage Facility) 0 ND B119:

Source Storage Room 49 ND B119:

Source Storage Room 120 ND B119A: Sealed Source Storage Room 2,078 16 Bl20:

Instrwnent Calibration Facility 11 ND B122:

Radioisotope Hood 0

ND Bl22:

Radioisotope Research Laboratory 0

ND B124:

Radioisotope Research Laboratory (Hood) 128 ND B124:

Radioisotope Research Laboratory 0

ND Bl24:

Radioisotope Research Laboratory 0

ND B128:

Instrument Repair Shop 0

ND B136 Gamma Analyzer Room 0

ND Cl00:

Radiation Center Director's Office 0

ND (l) The total recorded dose equivalent values do not include natural background contribution and, reflect the summation of the results of four quarterly beta-gamma dosimeters or four quarterly fast neutron dosimeters for each location. A total dose equiva-lent of"ND" indicates that each of the dosimeters during the reporting period was less than the vendor's gamma dose report-ing threshold of l O mrem or that each of the fast neutron dosimeters was less than the vendor's threshold of IO mrem. "N/ A" indicates that there was no neutron monitor at that location.

ANNUAl! REP.ORli

* * * * * * * * *

I.

RADIATION PROTECTION Monitor I.D.

MRCC106A MRCC106B MRCC106-H MRCC118 MRCC120 MRCFI00 MRCF102 MRCB125N MRCN125S MRCC124 MRCC130 MRCDI00 MRCD102 MRCD102-H MRCD106-H MRCD200 MRCD202 MRCBRR MRCD204 MRCATHRL MRCD300 MRCA144 Table V.8 (continued)

Total Dose Equivalent Recorded on Area Dosimeters Located Within the Radiation Center Total Recorded Radiation Center Dose EquivalentCll Facility Location (See Figure V. l)

XJ3(y)

Neutron (mrem)

(mrem)

Cl06A: Office 0

ND Cl06B: Custodian Supply Storage 0

ND C 106H: East Loading Dock 0

ND Cll8:

Radiochemistry Laboratory 0

ND Cl20:

Student Counting Laboratory 0

ND Fl00:

APEX Facility 0

ND Fl 02:

APEX Control Room 0

ND Bl 25:

Gamma Analyzer Room (Storage Cave) 0 ND Bl 25:

Gamma Analyzer Room 0

ND Cl24:

Classroom 0

ND Cl30:

Radioisotope Laboratory (Hood) 0 ND Dl00:

Reactor Support Laboratory 0

ND Dl02:

Pneumatic Transfer Terminal Laboratory 207 ND D 102H: 1st Floor Corridor at D 102 17 ND Dl06H: 1st Floor Corridor at Dl06 347 ND D200:

Reactor Administrator's Office 90 ND D202:

Senior Health Physicist's Office 194 ND D200H: Rear Personnel Dosimetry Storage Rack 0

ND D204:

Health Physicist Office 224 ND Fl 04:

ATHRL 0

ND D300:

3rd Floor Conference Room 113 ND Al44:

Radioisotope Research Laboratory 38 ND

(!) The total recorded dose equivalent values do not include natural background contribution and, reflect the summation of the results of four quarterly beta-gamma dosimeters or four quarterly fast neutron dosimeters for each location. A total dose equiva-lent of"ND" indicates that each of the dosimeters during the reporting period was less than the vendor's gamma dose report-ing threshold of 10 mrem or that each of the fast neutron dosimeters was less than the vendor's threshold of 10 mrem. "NIA" indicates that there was no neutron monitor at that location.

RADIATION PROTECTION Table V.9 Annual Summary of Radiation and Contamination Levels Observed Within the Reactor Facility and Radiation Center During Routine Radiation Surveys Accessible Location (See Figure V. l)

TRIG A Reactor Facility:

Reactor Top (D 104)

Reactor 2nd Deck Area (D104)

Reactor Bay SW (D104)

Reactor Bay NW (D104)

Reactor Bay NE (D104)

Reactor Bay SE (D104)

Class Experiments (D104, D302)

Demineralizer Tank & Make Up Water System (D104A)

Particulate Filter--Outside Shielding (D 104A)

Radiation Center:

NAA Counting Rooms (Al 46, BI00)

Health Physics Laboratory (Al38) 6°Co Irradiator Room and Calibration Rooms (Al28, Bl20, A130)

Radiation Research Labs (Al 26, Al36)

(B108, B114, B122, B124, C126, C130, A144)

Radioactive Source Storage (B119, B119A, Al20A, A132A)

Student Chemistry Laboratory (C 118)

Student Counting Laboratory (C120)

Operations Counting Room (Bl36, B125)

Pneumatic Transfer Laboratory (D 102)

RX support Room (D 100)

Whole Body Radiation Levels (mrem/hr)

Average I Maximum 3.07 100 5.42 35

<1 13

<1 6

<1 18

<1 6

<I 2.7

<I 23

<l

<l 1.5

<l

<l 40

<1 4.1

<1 26

<1

<l

<1

<1 2.5

<1

<1 Contamination LevelsC1)

(dpm/cm2)

Average I Maximum

<500

( 1) <500 dpm/100 cm2 = Less than the lower limit of detection for the portable survey instrument used.

RADIATION PROTECTION Table V.10 Total Dose Equivalent at the TRIGA Reactor Facility Fence Fence Total Recorded Dose Equivalent Environmental Monitoring Station (Including Background)

Based on Mirion TLDs<1. 2>

(See Figure V. l)

(mrem)

MRCFE-1 92 +/- 17 MRCFE-2 90 +/- 16 MRCFE-3 85 +/- 15 MRCFE-4 90 +/- 16 MRCFE-5 93 +/- 18 MRCFE-6 91 +/- 16 MRCFE-7 91 +/- 18 MRCFE-8 88 +/- 14 MRCFE-9 89 +/- 16 (I) Average Corvallis area natural background using Mirion TLDs totals 86 +/- 35 mrem for the same period.

(2) +/- values represent the standard deviation of the total value at the 95% confidence level.

RADIATION PROTECTION Table V.11 Total Dose Equivalent at the Off-Site Gamma Radiation Monitoring Stations Off-Site Radiation Total Recorded Dose Equivalent Monitoring Station (Including Background)

Based on Mirion TLDs<1.2>

(See Figure V. l)

(mrem)

MRCTE-2 89 +/- 17 MRCTE-3 87 +/- 14 MRCTE-4 84 +/- 15 MRCTE-5 84 +/- 28 MRCTE-6 90 +/- 16 MRCTE-7 92 +/- 16 MRCTE-8 101 +/- 17 MRCTE-9 94 +/- 16 MRCTE-10 81 +/- 14 MRCTE-12 101 +/- 17 MRCTE-13 86 +/- 13 MRCTE-14 88 +/- 15 MRCTE-1 5 83 +/- 15 MRCTE-16 99 +/- 17 MRCTE-17 89 +/- 17 MRCTE-18 90 +/- 16 MRCTE-1 9 79 +/- 14 MRCTE-20 88 +/- 15 MRCTE-21 81 +/- 14 MRCTE-22 86 +/- 17 (1) Average Corvallis area natural background using Mirion TLDs totals 86 +/- 35 mrem for the same period.

(2) +/- values represent the standard deviation of the total value at the 95% confidence level.

RADIATION PROTECTION Sample Location (See Fig. V. l) 1-W 4-W 11-W 19-RW 3-S 5-S 20-S 21-S 2-G 6-G 7-G 8-G 9-G 10-G 12-G 13-G 14-G 15-G 16-G 17-G 18-G 22-G Table V.12 Annual Average Concentration of the Total Net Beta Radioactivity (minus 3H} for Environmental Soil, Water, and Vegetation Samples Sample Annual Average Concentration Of the Total Net Beta (Minus 3H)

LLD Type Radioactivity<1>

Reporting Units Water

2. llxlO-7<2)

2. 11 X 10-7(2)

µCi mi-1 Water l.76xl0_7(2) 1.7 6x 10-7<2>

µCi mi-1 Water 7.02x10-8<2>

7.02x10-8<2>

µCi mi-1 Water 2.1 lxl0-7<2>

2. 1lx10-7<2>

µCi mi-1 Soil 4.19xl0-5+/- l.05xl0-5 2.17xl0-5

µCi g-1 of dry soil Soil 2.05x10-5<2>

2.05xl o-5<2>

µCi g-1 of dry soil Soil 3.53xl0-5+/- l.02xl0-5 2.13xl0-5

µCi g-1 of dry soi I Soil 2.09xl o-5<2>

2.09xl o-5<

2>

µCi g-1 of dry soi I Grass 2.69xl0-4+/- 3.23xl0-5 5.55xl0-5

µCi g-1 of dry ash Grass l.27xl0-4+/- l.45xl0-5 2.44xl0*5

µCi g-1 of dry ash Grass l.62x!0-4 +/- 3.2lxl0-5 6.32xl0*5

µCi g-1 of dry ash Grass J.07xl0-4 +/- 2.44xl0-5 4.94xl0*5

µCi g-1 of dry ash Grass 1.44xl0-4 +/- 3.68xl0-5 7.58xl0*5

µCi g-1 of dry ash Grass 2.59xl0-4 +/- 2.85xl0*

5 4.74xl0*5

µCi g-1 of dry ash Grass 2.06x!0-4 +/- l.45xl0*

5 1.98x10*5

µCi g-1 of dry ash Grass l.13xl0-4 +/- 2.27xl0-5 4.46xl0*5

µCi g-1 of dry ash Grass 2.13xl0-4 +/- l.80xl0-5 2.67xl0*5

µCi g-1 of dry ash Grass 2.72xl0-4 +/- 2.89xl0*

5 4.74xl0*5

µCi g-1 of dry ash Grass 2.4lxl0-4+/- 2.35xl0*

5 3.73x10*5

µCi g-1 of dry ash Grass 2.68xl0-4+/- 2.40xl0-5 3.67xl0*5

µCi g-1 of dry ash Grass l.69xl0-4 +/- 4.25xl0*

5

8. 74xl o-s

µCi g-1 of dry ash Grass l.58xl0-4 +/- 2.49xl0*

5 4.64xl0*5

µCi g-1 of dry ash (1) +/- values represent the standard deviation of the value at the 95% confidence level.

(2) Less than lower limit of detection value shown.

RADIATION PROTECTION TableV.13 Annual Summary of Radioactive Material Shipments Originating From theTRIGA Reactor Facility's NRC License R-106 Nwnber of Shipments Total Activity Limited Yellow Yellow Shipped To (TBq)

Exempt Quantity II III Arizona State University Tucson AZ USA l.05xl0-6 2

1 0

0 Berkeley Geochronology Center Berkelev. CA USA 2.08xl0-7 2

1 0

0 Georgia Tech 4.76xl0-8 1

0 0

0 Atlanta. GA USA Indiana University 2.32xl0-8 1

0 0

0 Bloomington IN USA Lawrence Livermore National Lab l.39x10-7 2

0 0

0 Livermore CA USA Materion Corporation 3.73x10-2 0

0 0

4 Elmore OH USA Materion Natural Resources 8.47x10-2 0

0 0

15 Delta UT USA Montana State University 6.82xlQ-9 1

0 0

0 Bozeman MT USA New Mexico Geochronology Research Lab 6.69xl0-6 0

2 1

0 Socorro, NM USA Oregon State University 5.4lx10-7 2

1 0

0 Corvallis OR USA Pacific Northwest National Lab l.82x10-7 6

0 0

0 Richland WA USA Syracuse University 3.73xl0-8 1

0 0

0 Svracuse. NY USA University of Arizona 2.58xl0-6 3

I 0

0 Tucson, AZ USA University of Chicago 4.66x10-4 0

0 1

0 Chicago, IL USA University of Florida l.65xl0-6 1

I 0

0 Gainesville. FL USA University of Nevada, Las Vegas 6.2lx10-7 2

2 0

0 Las Vegas NV USA University of Wisconsin-Madison 5.89x10-7 0

2 0

0 Madison, WI USA Totals l.23x10- 1 24 11 2

19 Total 3

3 1

1 2

4 15 1

.)

3 6

1 4

1 2

4 2

56 L ----------------------------------:,:;.=,.=,.=,.=;~~~~=~--*

RADIATION PROTECTION Table V.14 Annual Summary of Radioactive Material Shipments Originating From the Radiation Center's State of Oregon License ORE 90005 Total Activity Number of Shipments Shipped To Limited (TBq)

Exempt Quantity White I Yellow II Lawrence Liveremore National Lab 4.43x10-1 0

1 0

0 Liveremore, CA USA Los Alamos National Lab 3.83xl0-6 0

4 2

0 Los Alamos, NM USA University of New Mexico 2.27x10- 10 1

0 0

0 Albuquerque, NM USA Totals 4.27xl0-6 1

5 2

0 TableV.15 Annual Summary of Radioactive Material Shipments Exported Under NRC General License 1 O CFR 110.23 Number of Shipments Shipped To Total Activity Exempt Limited Yellow (TBq)

Quantity II China Earthquake Administration 9.86xl0-8 2

0 0

Beijing, CHINA Curtin University of Technology 8.76xl0-6 0

0 2

Bently Western Australia AUSTRALIA Dalhousie University l.69xl0-8 2

0 0

Halifax, Nova Scotia CANADA Geological Survey of Japan 2.48xl0-8 Ibaraki, JAPAN 1

0 0

Hungarian Academy of Sciences, Institute for Nuclear Research 3.29x10-9 1

0 0

Debrecen, HUNGARY ISTO

5. l 8x 10-s Orleans, FRANCE 2

0 0

Korean Baskic Science Institute 3.32xl0-8 0

0 Cheongju-si, Chungcheongbuk-do KOREA

.)

Lanzhou Center of Oil and Gas Resources 2.23xl0-8 1

0 0

Lanzhou, CHINA Lanzhou University 6.46xl0-8 2

0 0

Lanzhou, Gansu CHINA Total 1

6 1

8 Total 2

2 2

1 1

2

.)

1 2

RADIATION PROTECTION Table V.15 (continued)

Annual Summary of Radioactive Material Shipments Exported Under NRC General License 10 CFR 110.23 Number of Shipments Shipped To Total Activity Exempt Limited Yellow (TBq)

Quantity II LSCE-CNRS Gif-Sur-Yvette, FRANCE l.57x10-7 3

0 0

Northwest University 2.lSxI0-8 I

0 0

XiAn,CHINA Peking University 6.29xl0-9 I

0 0

Beijing, CHINA Polish Academy of Sciences 5.95xl0-9 I

0 0

Krakow, POLAND QUAD-Lab, Natural Histoyr Museum of Denmark 2.63xJ0-6 I

I 0

Copenhagen, DEMARK Scottish Universities Research & Reactor Centre 2.39xl0-6 1

3 0

East Kilbride, SCOTLAND Universidade de Sao Paulo 3.67x1Q-7 4

0 0

San Paulo, BRAZIL Univeritat Potsdam l.0lxl o-s 1

0 0

Postdam, GERMANY University of Geneva l.07xl0-8 1

0 0

Geneva, SWITZERLAND University of Innsbruck 3.08xl0-9 1

0 0

Innsbruck, AUSTRIA University of Manitoba 3.85xl0-6 0

1 0

Winnipeg, CANADA University of Melbourne 2.83xl0-6 1

1 1

Parkville, Victoria AUSTRALIA University of Pad ova 7.84xl0-9 2

0 0

Padova, ITALY University of Queensland 5.53x10-7 0

1 0

Brisbane, Queensland AUSTRALIA University of Zurich l.54xl0-8 I

0 0

Zurich, SWITZERLAND Vrijc Universiteit 5.72x10-7 0

I 0

Amsterdam, THE NETHERLANDS Zhejiang University 2.70xl0-8 1

0 0

Hangzhou, CHINA Totals 2.25xl0-5 34 8

3 Total 3

I 1

1 2

4 4

1 I

3 2

I 1

1 I

45 1----------------------------------1*

,--*-*---------------------~~--------!*

RADIATION PROTECTION Figure V.1 Monitoring Stations for the OSU TRIGA Reactor CHXD(

~

CNf'USumJT'i' IWDCtnl a U'MTD.U.Xm4

,,:,::t::!f

_.:._ -,** i.U*,., -.. \\*.**

ft CoUDIA. 'IU)~

n c.uacA UJtff4l10((

C:

c:aASS S0IL

,, w.un.

lt1f aAJICW.A.~

cw::

cu:u:

uw ua NOn: ff UISLOCU'IDIIGUS110Vt11 ormKaAIIUDOKa:ten:LU'

~CCIKY4.U.ISAmell:r

-W-ork Summary The Radiation Center offers a wide variety of resources for teaching, research, and service related to radiation and radioac-tive materials. Some of these are discussed in detail in other parts of this report. The purpose of this section is to sum-marize the teaching, research, and service efforts carried out during the current reporting period.

Teaching An important responsibility of the Radiation Center and the reactor is to support OSU's academic programs. Implementa-tion of this support occurs through direct involvement of the Center's staff and facilities in the teaching programs of various departments and through participation in University research programs. Table III.2 plus the "Training and Instuction" sec-tion (see next page) provide detailed infonnation on the use of the Radiation Center and reactor for instruction and training.

Research and Service Almost all Radiation Center research and service work is tracked by means of a project database. When a request for facility use is received, a project number is assigned and the project is added to the database. The database includes such information as the project number, data about the person and institution requesting the work, infonnation about students in-volved, a description of the project, Radiation Center resources needed, the Radiation Center project manager, status of indi-vidual runs, billing infom1ation, and the funding source.

Table VI. I provides a summary of institutions which used the Radiation Center during this reporting period. This table also includes additional infonnation about the nwnber of academic personnel involved, the number of students involved, and the number of uses logged for each organization.

The major table in this section is Table VI.2. This table provides a listing of the research and service projects carried out during this reporting period and lists information relating to the personnel and institution involved, the type of project, and the funding agency. Projects which used the reactor are indicated by an asterisk. In addition to identifying specific projects carried out during the current reporting period, Part VI also highlights major Radiation Center capabilities in research and service. These unique Center functions are described in the following text.

Neutron Activation Analysis Neutron activation analysis (NAA) stands at the forefront of tech-niques for the quantitative multi-element analysis of major, minor, trace, and rare elements. The principle involved in NAA consists of first irradiating a sample with neutrons in a nuclear reactor such as the OSTR to produce specific radionuclides. After the irradiation, the characteristic gamma rays emitted by the decaying radionu-clides are quantitatively measured by suitable semiconductor radia-tion detectors, and the gamma rays detected at a particular energy are usually indicative ofa specific radionuclide's presence. Com-puterized data reduction of the gamma ray spectra then yields the concentrations of the various elements in samples being studied.

With sequential instrumental NAA it is possible to measure quanti-tatively about 35 elements in small samples (5 to 100 mg), and for activable elements the lower limit of detection is on the order of parts per million or parts per billion, depending on the element.

The Radiation Center's NAA laboratory has analyzed the major, minor, and trace element content of tens of thousands of samples covering essentially the complete spectrum of material types and involving virtually every scientific and technical field.

While some researchers perform their own sample counting on their own or on Radiation Center equipment, the Radiation Center provides a complete NAA service for researchers and others who may require it. This includes san1ple preparation, sequential irra-diation and counting, and data reduction and analysis.

Irradiations As described throughout this report, a major capability of the Radiation Center involves the irradiation of a large variety of substances with gamma rays and neutrons. Detailed data on these irradiations and their use are included in Part III as well as in the "Research & Service" text of this section.

Radiological Emergency Response Services The Radiation Center has an emergency response team capable of responding to all types of radiological accidents. This tean1 directly supports the City of Corvallis and Benton County emergency re-sponse organizations and medical facilities. The team can also pro-vide assistance at the scene of any radiological incident anywhere 1-------------------------------------======-'*

I--'-*------------------------------*

WORK in the state of Oregon on behalf of the Oregon Radiation Protection Services and the Oregon Department of Energy.

The Radiation Center maintains dedicated stocks of radio-logical emergency response equipment and instrumentation.

These items are located at the Radiation Center and at the Good Samaritan Hospital in Corvallis.

During the current reporting period, the Radiation Center emergency response team conducted several training ses-sions and exercises, but was not required to respond to any actual incidents.

Training and Instruction In addition to the academic laboratory classes and courses discussed in Parts III and VI, and in addition to the routine training needed to meet the requirements of the OSTR Emer-gency Response Plan, Physical Security Plan, and operator requalification program, the Radiation Center is also used for special training programs. Radiation Center staff are well ex-perienced in conducting these special programs and regularly offer training in areas such as research reactor operations, research reactor management, research reactor radiation protection, radiological emergency response, reactor behav-ior (for nuclear power plant operators), neutron activation analysis, nuclear chemistry, and nuclear safety analysis.

Special training programs generally fall into one of several categories: visiting faculty and research scientists; Interna-tional Atomic Energy Agency fellows; special short-term courses; or individual reactor operator or health physics training programs. During this reporting period there were a large nwnber of such people as shown in the People Section.

As has been the practice since 1985, Radiation Center personnel annually present a HAZMAT Response Team Ra-diological Course. This year the course was held at Oregon State University.

Radiation Protection Services The primary purpose of the radiation protection program at the Radiation Center is to support the instruction and research conducted at the Center. However, due to the high quality of the progran1 and the level of expertise and equip-ment available, the Radiation Center is also able to provide health physics services in support of OSU Radiation Safety and to assist other state and federal agencies. The Radiation Center does not compete with private industry, but supplies health physics services which are not readily available else-where. In the case of support provided to state agencies, this definitely helps to optimize the utilization of state resources.

The Radiation Center is capable of providing health phys-ics services in any of the areas which are discussed in Part V. These include personnel monitoring, radjation surveys, sealed source leak testing, packaging and srupment of radio-active materials, calibration and repair ofradiation morutor-ing instruments (discussed in detail in Part VI), radioactive waste disposal, radioactive material hood flow surveys, and radiation safety analysis and audits.

The Radiation Center also provides services and tecluucal support as a radiation laboratory to the State of Oregon Radi-ation Protection Services (RPS) in the event of a radiological emergency within the state of Oregon. In this role, the Radia-tion Center will provide gamma ray spectrometric analysis of water, soil, milk, food products, vegetation, and air samples collected by RPS radiological response field teams. As part of the ongoing preparation for this emergency support, the Radiation Center participates in inter-institution drills.

Radiological Instrument Repair and Calibration While repair of nuclear instrumentation is a practical neces-sity, routine calibration of these instruments is a licensing and regulatory requirement which must be met. As a result, the Radiation Center operates a radiation instrument repair and calibration facility which can acconunodate a wide vari-ety of equipment.

The Center's scientific instrument repair facility perfom1s maintenance and repair on all types ofradiation detectors and other nuclear instrumentation. Since the Radiation Center's own programs regularly utilize a wide range of nuclear in-struments, components for most common repairs are often on hand and repair time is therefore minimized.

In addition to the instrument repair capability, the Radia-tion Center has a facility for calibrating essentially all types of radiation monjtoring instrwnents. This includes typical portable monitoring instrumentation for the detection and measurement of alpha, beta, gamma, and neutron radiation, as well as instruments designed for low-level environmental monitoring. Higher range instruments for use in radiation accident situations can also be calibrated in most cases.

Instrument calibrations are performed using radiation sources certified by the National Institute of Standards and Technol-ogy (NIST) or traceable to NIST.

WORK Table VI.3 is a summary of the instrwnents which were calibrated in support of the Radiation Center's instructional and research programs and the OSTR Emergency Plan, while Table VI.4 shows instruments calibrated for other OSU departments and non-OSU agencies.

Consultation Radiation Center staff are available to provide consulta-tion services in any of the areas discussed in this Annual Report, but in particular on the subjects of research reactor operations and use, radiation protection, neutron activation analysis, radiation shielding, radiological emergency response, and radiotracer methods.

Records are not normally kept of such consultations, as they often take the form of telephone conversations with research-ers encountering problems or planning the design of experi-ments. Many faculty members housed in the Radiation Center have ongoing professional consulting functions with various organizations, in addition to sitting on numerous committees in advisory capacities.

Table Vl.1 Institutions, Agencies and Groups Which Utilized the Radiation Center Number of Number of Times of Intuitions, Agencies and Groups Projects Faculty Involvement

102nd Oregon Civil Support Unit 1

1 Salem, OR USA Akhezion Biomedical Hudson, NC USA 1

0

Arizona State Univeristy 1

0 Tempe, AZ USA Avalanche Energy 1

0 Seattle, WA USA

Berkeley Geochronology Center 1

0 Berkeley, CA USA CDM Smith Edison, NJ USA 1

0

Charlotte Pipe and Foundry Co.

1 0

Monroe, NC USA

Dalhousie University 1

2 Halifax, Novia Scotia CANADA

Dept of Geological Sciences, University of Florida 1

0 Gainesville, FL USA

Department of Geosciences 1

0 Tucson, AZ USA Dept of Plant Science and Landscape Architecture 1

2 College Park, MD USA

Environmental and Molecular Toxicology 1

3 Corvallis, OR USA

ETHZuirch Zurich, SWITZERLAND 1

1 Florida State University 1

0 Tallahassee, FL USA Number ot Uses of Center Facilities 1

1 2

1 6

5 2

2 2

8

* * * * * * * *

I. * * * * * * * * *

1* * * * * * * * *

I.

WORK Table Vl.1 (continued}

Institutions, Agencies and Groups Which Utilized the Radiation Center Nwnber of Nwnber of Times of Intuitions, Agencies and Groups Projects Faculty Involvement Genis, Inc.

1 0

Reykjavik, ICELAND

Geological Survey ofJapan/AIST 1

0 Tsukuba, lbaraki, JAPAN

Georgia Institute of Technology 2

0 Atlanta, GA USA

Greentree Synergy 1

0 Gardiner, NY USA

Hi-Tech Precious Metals Refinery Dallas, TX USA 1

0

Howe Industries Scottsdale, AZ USA 1

0

Indiana University Bloomington, IN USA 1

0

Institute for Nuclear Research, Hungary Debrecen, Hajdu-Bihar HUNGARY 1

1

Institute of Geology, China Earthquake Administration Beijing, CHlNA 2

0

INSU-CNRS - Universite d'Orleans 1

1 Orleans, FRANCE

Kavli Institute for Cosmological Physics 1

1 Chicago, IL USA

Korea Basic Science Institute 1

1 Cheongwon-gun, Chungcheongbuk-do SOUTH KOREA

Lanzhou Center of Oil and Gas Resources, CAS 1

I Lanzhou, CHINA

Lanzhou University 2

0 Lanzhou City, Gansu Province CHINA

Lanzhou University Lanzhou, CHINA 2

0

Lawrence Livermore National Laboratory Livermore, CA USA 1

0

LSCE-CNRS 1

0 Gif-Sur-Yvette Cedex, FRANCE

Materion Brush, Inc.

1 0

Elmore, OH USA

Materion Natural Resources 1

0 Delta, UT USA

Montana State Univeresity I

0 Bozeman, MT USA New Mexico Institute of Mining & Technology 1

0 Socorro, NM USA Number of Uses of Center FarilitiP<:

5 1

10 2

2 2

1 1

2 2

3 3

2 2

2 I

5

.)

9 1

4

WORK Table Vl.1 (continued)

Institutions, Agencies and Groups Which Utilized the Radiation Center Number of Number of Times of Intuitions, Agencies and Groups Projects Faculty Involvement

Northwest University 1

0 Xi' An, CHINA

Nray Services, Inc.

1 1

Dundas, Ontario CANADA

Oregon State University(ll 14 41 Corvallis, OR USA

Oregon State University - Educational Tours 1

0 Corvallis, OR USA

Oregon State University MIME 1

3 Corvallis, OR USA

Oregon State University Radiation Center 1

1 Corvallis, OR USA

Pacific Northwest National Laboratory 1

0 Richland, WA USA Peking Universisty 1

1 Beijing, CHINA

Polish Academy of Sciences 1

0 Krakow, POLAND

Quaternary Dating Laboratory 1

0 Roskilde, DENMARK

Redwood Materials 1

0 Carson City NV USA

Robebud Sioux Tribe Historice Preservation Office 1

0 Rosebud, SD USA

School of Nuclear Science and Engineering 2

4 Corvallis, OR USA

Scottish Universities Environmental Research Centre 1

0 East Kilbride UK Stark Street Materials Corp 2

0 Portland, OR USA

Syracuse University 1

1 Syracuse, NY USA

Universita' Degli Studi di Padova 1

2 Padova ITALIA

University of Arizona 2

3 Tucson, AZ USA

University of Geneva 1

1 Geneva SWITZERLAND

University oflnnsbruck 1

1 Innsbruck, AUSTRIA

University of Manitoba 1

1 Winnipeg, Manitoba CANADA Nwnber of Uses of Center F~cilitiP~

.)

1 55(2) 12 1

10 7

1 1

2 13 4

2 1

2 5

1 1

2 1----------------------------------'*

WORK Table Vl.1 (continued)

Institutions, Agencies and Groups Which Utilized the Radiation Center Number of Number of Times of Intuitions, Agencies and Groups Projects Faculty Involvement

University of Melbourne 1

1 Melbourne, Victoria AUSTRALIA

University of Nevada, Las Vegas 1

1 Las Vegas, NV USA

University of Potsdam 1

0 Potsdam, GERMANY

University of Queensland 1

1 Brisbane, Queensland AUSTRALIA

University of Sao Paulo 1

0 Sao Paulo BRAZIL

University of Wisconsin 1

1 Madison, WI USA US National Parks Service 1

0 Crater Lake, OR USA

Vrije Universiteit 1

1 Amsterdam THE NETHERLANDS

Western Australian Argon Isotope Facility 1

0 Perth, Western Australia AUSTRALIA

Yale University 1

0 New Haven, CT USA

Zhejiang University 1

0 Hangzhou, CHINA Totals 87 79 Project which involves the OSTR.

Number of Uses of Center Facilitie" 3

4 1

1 2

2

.)

1 4

2 1

251 (1)

(2)

Use by Oregon State University does not include any teaching activities or classes accommodated by the Radiation Center.

This number does not include on going projects being performed by residents of the Radiation Center such as the APEX project, others in the Department of Nuclear Engineering and Radiation Health Physics or Department of Chemistry or projects conducted by Dr. Walt Loveland, which involve daily use of the Radiation Center facilities.

Project Users 444 Duncan 815 Morrell 920 Becker 1074 Wijbrans 1191 Vasconcelos 1465 Singer Teaching and 1504 Tours 1514 Sobel 1523 Zattin 1555 Fitzgerald 1568 Zanetti 1617 Spikjngs 1623 Blythe 1660 Reactor Ooerations Staff 1745 Girdner TableVl.2 Listing of Major Research and Service Projects Preformed or in Progress at the Radiation Center and Their Funding Agencies Organization Name Project Title Description Oregon State Ar-40/ Ar-39 Dating of Oceanographic Production of Ar-39 from K-39 to measure radiometric ages on basaltic rocks from ocean University Samples basins.

Oregon State Sterilization of Wood Samples Sterilization of wood samples to 2.5 Mrads in Co-Unjversity 60 irradiator for fungal evaluations.

Berkeley Production of Ar-39 from K-39 to determine ages Ar-39/Ar-40 Age Dating Geochronology Center in various anthropologic and geologic materials.

Vrije Universiteit Ar/Ar Dating of Rocks and Minerals Ar/Ar dating ofrocks and minerals.

University of Production of Ar-39 from K-39 to detem1ine ages Queensland Ar-39/Ar-40 Age Dating in various anthropologic and geologic materials.

University of Ar-40/Ar-39 Dating ofYoung Geologic Irradiation of geological materials such as volcanic Wisconsin Materials rocks from sea floor, etc. for Ar-40/ Ar-39 dating.

Oregon State OSU Nuclear Engineering & Radiation University -

OSTR tour and reactor lab.

Educational Tours Health Physics Department Universitat Potsdam Apatite Fission Track Analysis Age determination of apatites by fission track analvsis.

Universita' Degli Studi Fission track analysis of Apatites Fission track dating method on apatites by fission diPadova track analysis.

Irradiation to induce U-235 fission for fission track thermal history dating, especially for hydrocarbon Syracuse University Fission track them1ochronology exploration. The main thrust is towards tectonics, in particular the uplift and formation of mountain ranges.

University ofNevada Irradiation of rocks and minerals for Ar/ Ar dating Ar/ Ar dating of rocks and minerals to detennine eruption ages, emplacement histories, Las Vegas and orovenances studies.

University of Geneva Ar-Ar geochronology and Fission Track Argon dating of Chilean granites.

dating Occidental College Fission Track Analysis Fission track Thermochronology of geological samoles Oregon State Operations support of the reactor and Operations use of the reactor in support of reactor University facilities testing and facilities testing.

US National Parks C 14 Measurements LSC analysis of samples for C14 measurements.

Service Funding OSU Oceanography Department OSU Forest Products Berkeley Geochronology Center Vrije Universiteit, Amsterdam Earth Sciences, University of Queensland University of Wisconsin NA Universitat Potsdam NA Syracuse University Univerity of Nevada Las Vegas University of Geneva Occidental College NA US National Parks Service

~

0

0 A

Project Users 1768 Bringman 1777 Storey 1778 Gislason 1785 Mine 18 18 Sabey 183 1 Thomson 1855 Anczkiewicz 1860 Mine 1864 Gans 1865 Carrapa 1882 Bray 1884 Contreras 1886 Coutand 1887 Farsoni Table Vl.2 (continued)

Listing of Major Research and Service Projects Preformed or in Progress at the Radiation Center and Their Funding Agencies Organization Name Project Title Description Brush-Wei Iman Antimony Source Production Production of Sb-1 24 sources.

Quaternary Dating Quaternary Dating Production of Ar-39 from K-39 to determine Laboratory radiometric ages of geological materials.

This project subjects chitosan polymer in 40 and 70% DDA formulations to 9 and 18 Kgy, boundary Genis, Inc Gamma exposure of Chitosan polymer doses for commerical sterilization for the purpose of detern1ine changes in the molecular weight and product formulation properites.

Oregon State Univesity TNAA of Maya ceramics Trace-element analysis of ancient Maya ceramics from Pultrouser Swamp, Belize.

Brush Wellman Antimony source production (Utah)

Fission track thern1ochronometry of the University of Arizona Fission Track Patagonian Andes and the Northern Apennines, Italy.

Polish Academy of Fission Track Services Verification of AFT data for illite-mechte data.

Sciences Oregon State TNAA of Archaeological Ceramics Trace-element analysis of archaeological ceramics.

University University of Production of Ar-39 from K-40 to determine California at Santa Ar-40/Ar-39 Sample Dating radiometric ages of geologic samples.

Barbara Apatite fission track to reveal the exhumation University of Fission Track Irradiations history of rocks from the ID-WY-UY postion Wyoming of the Sevier fold and thrust belt, Nepal, and Argentina.

Wayne State Univerity TNAA of Archaeological Ceramics from Trace-element analysis of Inca-period ceramics for South America provenance detern1ination.

The current project is designed to identify the Oregon State LD50 rate of gamma irradiation so that large Mutation breeding of woody plants seed lots may be irradiated in order to develop University novel phenotypes that exhibit reduced fertility or sterili ty.

Dalhousie University Fission Track Irradiation Fission track irradiations of apatite samples.

Oregon State Xenon Gas Production Production of xenon gas.

University Funding Brush-Wellman Quaternary Dating Laboratory Genis, Inc.

Brush-Wellman Yale University Polish Academy of Sciences NIA University of California at Santa Barbara University of Wyoming Wayne State University OSU Horticulture Dahousie University OSUNERHP

E 0

0 A

I

~

JI a.:

1*.,

Table Vl.2 (continued)

Listing of Major Research and Service Projects Preformed or in Progress at the Radiation Center and Their Funding Agencies Project Users Organization Name Project Title Description Funding The goal of this project is to detennine the effects of hydrolysis and radiolysis on the extraction ability of a diamide and chlorinated cobalt 1889 Paulenova Oregon State Hydrolysis and Radiolysis of synergistic dicarbollide (CCD). CCD and the diamide are Oregon State University extractants synergistic extractants and wi ll be together in Univeristy NSE solution for hydrolysis and radiolysis experiments.

Effects will be measured with IR spectroscopy and extraction distribution ratios.

1898 Fayon University of Fission Track Services Use of fission tracks to determine location of Minnesota 235U, 232Th in natural rocks and minerals.

1905 Fellin ETH Zurich Fission Track Analysis Use of fission tracks to determine location of Geologisches Institut, 235U, 232Th in natural rocks and minerals.

ETH Zurich Oregon State Fission Yield Determination Using Use of neutron activation to determine fission 1913 Reese yields for various fissile and ferti le materials using NIA University Gamma Spectroscopy gamma spectroscopy.

Scottish Universities Scottish Universities 1914 Barfod Enviromnental Ar/ Ar Age Dating Ar/ Ar age dating.

Research and Reactor Research Centre Centre 1927 Seward Victoria University of Fission Track Dating Fission track dating of apatite samples.

Vitoria University of Wellington Wellington 1939 Wang Lanzhou University Lanzhou University Fission Track Fission Track dating.

Lanzhou University 1955 Higley Oregon State Uptake ofredionuclides in plants Derermine concentration ratios in plants.

OSUNERHP University 1957 Phillips University of Radiometric age dating of geologic Ar/ Ar age dating.

University of Melbourne samples Melbourne 1965 Webb University ofVern10nt Ari Ar age dating Irradiation with fast neutrons to produce Ar-39 University ofVennont from K-39 for Ar/Ar geochronology.

Use offissin tracks to determine last heating event School of 1975 McDonald University of Glasgow Samuel Jaanne Geographical and of apatites.

Earth Science 1995 Camacho University of Manitoba Ar/Ar dating Production of Ar-39 from K-39 to detern1ine University of radiometric ages of geological materials.

Manitoba 2001 Derrick Branch Engineering Densitometer Leak Test Wipe counts for leak test of densitometer sources.

Branch Engineering 2004 Sudo University of Postdam Ari Ar Geochronological Studies Ar/Ar dating of natural rocks and minerals for geological studies.

2007 Wartho Arizona State Argon-Argon Geochronology Fast neutron irradiation of mineral and rock Arizona State University samples for 40 Ar/39Ar dating purposes.

University 2010 Helena Hollanda University of Sao Ari Ar Geological Dating Ar/ Ar geologic dating of materials.

University of Sao Paulo Paulo Wester Australian 2017 Jourdan Argon Isotope Facility Age dating of geological material Ar/ Af geochronology.

Curtin University

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0

Table Vl.2 {continued)

I Listing of Major Research and Service Projects Preformed or in Progress

~

0 at the Radiation Center and Their Funding Agencies

0 "

Project Users Organization Name Project Title Description Funding 2023 Cassata Lawrence Livermore Ar/ Ar dating Production of neutron induced 39Ar from 39K for Lawrence Livennore National Laboratory Ari Ar dating.

National Laboratory 2028 Mine Oregon State INAA of ceramics from the Ancient Provenance determination of ceramics from the OSU Anthropology University Near East Ancient Near East via trace-element analysis.

2029 Kim Korea Basic Science Ari Ar geochronology Ar/Ar analysis for age dating of geological Korea Basic Science Institute samples.

Institute 2034 Morrell Oregon State Sterilization of Wood Products Sterilization of wood to 2.0 Mrad for fungal OS U Forest Products University experiments.

Lanzhou Center of Oil Lanzhou Center 2035 Wang and Gas Resources, Fission Track Fission track dating of rock samples.

of Oil and Gas CAS Resources, CAS 2036 Loveland Oregon State Measurement of fission product TKE Measurement of fission product kinetic energy for University various fissile elements.

Prevention oflnfections Associated with Combat-related Injuries by Local Sustained Co-Delivery of Vitamin D3 and Other Immune-Boosting Compounds Award Mechanism. We are Oregon State Prevention of Infections Associated preparing nanofiber wound dressings that contain 2039 Gombart University with Combat-related Injuries by Local compow1ds that will be released over time to Sustained Co-Delivery induce the immune response in wounds to help prevent infection and speed wound healing. The nanofibers must be irradiated so that they are sterile. These experiments will be performed in cell culture and in animal models.

2048 Christensen Oregon State INAA of IV Fluids INAA to determine trace metals in TPN and OSU College of University additives.

Pharmacy Geological Survey of Ar/Ar geochronology of volcanic and igneous Geological Survey of 2060 Ishizuka Ar/ Ar Geochronology rocks associated with subduction initiation of Japan/AIST oceanic island arc.

Japan Oregon State Neutron Radiography Imaging of Investigation into the applicablity of neutron 2061 Weiss University Concrete radiography for evaluating concrete curing processes.

We will be perfonning bench scale microcosm 2064 Schaefer CDM Smith Abiotic Dechlorination of chlorinated studies to measure the abiotic dechlorination in CDMSmith solvents in soil matrices.

different soil matrices. Gamma irradiation will be used to sterilize the samples.

Oregon State Neutron Radiography of Long-Term Use of neutron radiography and omography Oregon State 2067 Reese University Concrete Curing imaging in long-tem1 studies of concrete curing University CCE used in civil construction.

2069 Scaillet INSU-CNRS-Ar/ Ar dating of geologic samples Ari Ar analysis for age dating of geologic samples INSU-CNRS-Universite d'Orleans (solid rock chips and minerals)

Universite d'Orleans

Project Users 2070 Lowell 2083 Nadel 2084 Nadel 2085 He 2092 Jianaiqng 2097 Boyt 2098 Pang 2100 Palmer Table Vl.2 (continued)

Listing of Major Research and Service Projects Preformed or in Progress at the Radiation Center and Their Funding Agencies Organization Name Project Title Description The purpose of this experiment is to determine what color a nearly colorless Tourmaline will turn with dosages of 5, IO and 20 Mr of Gamma irradiation. Two Pakistan Beryl crystals are also part of this experiment to see the color change as well as 2 pieces of Four Peaks Amethyst that may Gamma irradiation induced change of have been faded by sunlight. For the Tourmaline, Colorado Gem and color possibilities are brown, yellow, and pink Mineral Co.

color in Tourmaline from a Pegmatite in to red. The commercial value of colorless gem the Oban Massif, Nigeria Tourmaline is very low, but other colors of gem Tourmaline, especially pink and red results, would stimulate mining of this material in Nigeria. 20 Mr is usually a dosage that will saturate the visible color, and lower dosages may be preferable if the Gamma rays cause a new color other than pink or red which is the desirable result.

Charlotte Pipe and ABS Antimony Testing Testing for trace antimony in ABS via INAA Foundry Co.

according to ASTM E3063.

Charlotte Pipe and ABS Antimony Testing Testing for trace antimony in ABS via INAA Foundry Co.

according to ASTM E3063.

Lanzhou University Apatite Fission Track Use of fission track analysis to detem1ine U con-tent in the sedimentation of Xining Basin.

Northwest University Fission Track Dating of Qaidam Basin Fission track dating of Qaidam Basin, China to determine its age.

Project is designed to irradiate liquid donor bovine serum contained in vinyl bags to a minimum level Boyt Veterinary Lab Donor Bovine Serum Irradiation of 25 kGy to inactivate any adventitious agents that may be present in 0.2 um sterile filtered product.

Institute of Geology, Studying the thermal history of the northeast Tibet China Earthquake Fission-Track dating Plateau by the fission-track dating method.

Administration This project is a collaboration with OSU Robotics.

We are investigating the performance of PDMS School ofNuclear Soft Robotic Applications for Nuclear materials, which are used to fabricate soft robotics, Science and fo llowing radiation exposure. We would like Engineering Safeguards to characterize any changes in hardness, tensile strength, and recovery after exposure to high radiation environments.

Funding Colorado Gema and Mineral Co.

Charlotte Pipe &

Foundry Co.

Charlotte Pipe &

Foundry Co.

Lanzhou University Boyt Veterinary Lab China Earthquake Administration Idaho ational Laboratory

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0

0 A

Project Users 2101 Yang 2111 Turrin 211 5 Scao 2120 Li 2121 Jia 2122 Jia 2135 Pomella 2136 Higley 2142 Heizler 2144 Hemming 2145 Morgan Table Vl.2 (continued)

Listing of Major Research and Service Projects Preformed or in Progress at the Radiation Center and Their Funding Agencies Organization Name Project Title Description Zhejiang University Fission-track thennochronometry Fission-track analysis for dating geological material.

Rutgers Ar/ Ar Geochronology Lunar/solar system chronology.

LSCE-CNRS Age dating of geologic materials Ar/Ar analysis for age dating of Geologic materials.

Using the in situ TEM ion irradiation facility at Argonne National Laboratory, we already observed He ions (simulating alpha-particles)

Institute of Tibetan induced annealing effects on 80 MeV ion tracks Plateau Research, Alpha-particle induced annealing effects (simulating fission tracks) in apatite. For the next Chinese Academy of of fission tracks in apatite step, we are planning to use chemical etching to Sciences further confirn1 the alpha-annealing effects on real fission tracks. Neutron-induced fission tracks are essential to the etching experiments because neutron-induced fission tracks, have no thermal history ( or thermal annealing effects).

Beijing Research Fission track analysis to detern1ine U Institue of Uranium content in South China Fision track dating of areas of South China.

Geology Beijing Research Ar-Ar analysis for age dating of geologic Ar-Ar analysis for age dating of geologic materials Institue of Uranium Geology materials.

(solid rock grains and minerals).

University of Apatite Fission Track Apatite fission track, standards for zeta calibration.

Innsbruck Oregon State INAA of Mining Site Soils Soil analysis by INAA for Uranium/Thorium University concentration assessment.

Fast neutron irradiation of geological samples New Mexico Irradiation of samples for 40Ar/39Ar to primarily transmute 39K to 39Ar for the Institue of Mining &

geochronology for NM Tech purposes ofrock and mineral dating. Samples are Technology for academic geological investigations requiring knowledge of age and/or thennal history.

We analyze a variety of geological samples for Colwnbia University Ar Geochronology for the Earth their 40Ar/39Ar ages, including samples for Sciences (AGES) external collaborators and for internal grant-supported research.

U.S. Geological Neutron irradiation requested for 40Ar/39Ar Survey 40 Ar/39Ar Geochronology geochronology. Will use 39K (n,p) 39Ar reaction to detennine ages on rocks and minerals.

Funding Zhejiang University NASA LSCE-CNRS Chinese Academy of Sciences Beijing Research Institue of Uranium Geology University of Innsbruck NM Bureau of Geology Columbia Univeristy USGSArgon Geochronology

I Project Users 2146 Calvert 2149 Vanderstelt 2153 Quinn 2157 Fawcett 2160 Schaen 2161 Turina 2162 Jump 2163 Sathuvalli 2165 Caffrey 2166 Kampfer Table Vl.2 {continued)

Listing of Major Research and Service Projects Preformed or in Progress at the Radiation Center and Their Funding Agencies Organization Name Project Title Description Menlo Park Geochronology uses 40Ar/39Ar techniques to date materials for geologic hazards, U.S. Geological 40 Ar/39Ar Geochronology mapping, tectonic and mineral resource projects.

Survey The method requires fast-neutron irradiation of separates from volcanic, plutonic, sedimentary and metamorphic rocks to convert 39K to 39Ar.

Nray Services, Inc.

Titanium Trubine Blade Activation Examination of neutron activation in titaniw11 turbine blades from neutron radiography.

Solidia Technologies Neutron Radiography to Image Carbon Using neutron radiography to look at pressurized Dioxide in Concrete CO2 in concrete that is curing.

University of MN2019a Neutron irradiation of geologic material for noble Manchester gas analysis and dating.

Department of University of Arizona 40Ar/39Ar Irradiation rock & mineral samples for 40Ar/39Ar Geosciences geochronology dating.

NAA of clays to detennine radioactivity level Museo Egizio NAAofClays for future neutron radiography work. This will detem1ine/estimate how long the samples will need to be held prior to free release.

Oregon State Role of microbiota in the effects of To address the role of microbiota in fatty liver polyunsaturated fatty acids (PUFA) on University liver disease and in beneficial effect of PUFA on liver.

The main idea is to introduce gamma rays to tissue cultures of 3 potato varieties in a bid to induce mutations to the plants. There are certain qualities

/ characteristics we hope will be mutated and so, upon inducement with gamma radiation, we will evaluate the plants (if they survive the mutation)

Dept of Horticulture Gamma irradiation of potatoes for those qualities. The first stage is to ascertain the optimum radiation dosage for the 3 varieties under evaluation. A second stage will come up where the potatoes will be evaluated based on infonnation from the first i.e. the optimw11 radiation dosage.

A set of 5 polymers (EPDM, PTFE, PCTFE, PFA, PAI) used in common spaceflight applications are NASA Marshall Space to be exposed to the mixed neutron/gamma field of Flight Center Nuclear Propulsion Polymer Tests the OSTR in order to evaluate changes in material properties. The current test includes a total of 60 'microdogbone' ASTM D638 Type V tensile specimens.

Materion Corp.

Trace-element analysis of Be powder.

INAA to determine U content of Be powder.

Funding Menlo Park Geochronology Nray Services, Inc.

Solidia Technologies University of Manchester University of Arizona Oregon State University Oregon State University Horticulture NASA Materion Corp.

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Project Users 2167 Reese 2168 Radniecki 2170 Howe 217 1 Tiwari 2172 Graziano 2173 Lee Table Vl.2 (continued)

Listing of Major Research and Service Projects Preformed or in Progress at the Radiation Center and Their Funding Agencies Organization Name Project Title Description Oregon State Neutron Radiography of Artifacts Use of neutron radiography to examine University archaeological artifacts.

We are trying to isolate the effects that biofilm growth and fou ling has on sorption kinetics, breakthrough, and desorption in packed columns Oregon State The Effects ofBiofilms in elm testing of two different proprietary adsorbents. By looking of sorbents for removal of Cu, Zn and at the data for triplicate columns with and without University CBEE PFAS's from Storwater biofilms enriched from the OGSIR faci lity in Avery park, we hope to isolate the effects that naturally occuring biofilms have on sorption removal of PFASs, zinc and copper in stom1water.

Testing electrical conductivity changes of Them1oelectric Cooler Conductivity materials while monitoring temperatures of device Howe Industries Experiment and ambient conditions. Power will be stepped at various levels to detem1 ine these parameter changes.

We would like to get these seeds irradiated for inducing gamma irradiation-induced chromosomal Department of Plant Gamma induced chromosomal breaks in breaks in CS and MOY-wheats.It will allow Science and Landscape CS and MOY wheats us to map targeted candidate genes in low Architecture recombination regions and will help in overall wheat improvement.

The project is looking at positive and negative consequences of using persistent herbicides for invasive species management at high latitudes.

The irradiated soils will be used to develop University of Alaska Control of invasive plants at high soil herbicide isothem1s for aminopyralid and Anchorage latitudes with persistent herbicides clopyralid. The soi ls originate from two field sites (Fairbanks and Palmer) where these herbicides were applied. We will determine if the isotherms help predict the persistence of these herbicides at the field sites.

University of Oregon INAA of Ancient Korean Ceramics Trace-element analyses of Neolithic and Bronze Age ceramics from Korea.

Funding Oregon State University CBEE Howe Industries University of Maryland College Park University of Alaska University of Oregon

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0 A

Project Users 2174 Horvath 2175 Gess 2176 Phelps 2177 Phelps 2178 Weiss 2179 Weiss 2180 Meqbel 218 1 Singh Table Vl.2 (continued)

Listing of Major Research and Service Projects Preformed or in Progress at the Radiation Center and Their Funding Agencies Organization Name Project Title Description The scope of this project is to run tests and Fusion Energy calibrate our fast neutron detector through the Solutions Fast neutron detection D(T,n)alpha reactions and calibration by Fl8 decay from O 16+ T reactions to be measured on an OSU HPGe detector.

Oregon State Neutron Radiography of two Phase Flow Use of neutron radiography to evaluate two phase University MIME flow conditions during TREAT irradiations.

Adhezion Biomedical is interested in the effect of Gamma on various applicator parts and materials.

The purpose of this feasibility run is to provide ampoules from three different product lines to Adhezion Biomedical Various Ampoule Gamma-Feasibility understand the process and ensure your facility Run can stay within the range of 8-12 kGy. Once we get the samples returned, if all testing on our end result as expected, we will most likely send a second round of samples for further investigation of material compatibility with Gamma-irradiation.

Adhezion Biomedical is interested in the effect of Gamma on PVDF ampoules and the stability of the product post-irradiation. Analytical testing Adhezion Biomedical PVDF Ampoule Gamma-Feasibility Run shall follow on our end after Gamma-irradiation to detem1ine if this is a good sterilization method to move into a larger scale sterilization for our medical device product line.

BASF Additive Concrete Curing Examination of a BASF addative to concrete Oregon State mixutures and it's effect upon curing under University Investigation pressure.

Hi-Tech Precious INAA of Mine Tailings INAA to detem1ine precious metal (gold and PGE)

Metal Refinery content of mine tailings.

Wadia Institute of Geo-Thermochronological investigation To study the shallow crust exhumation history Himalayan Geology of Lesser Himalayan Crystialline of of the lesser Himalayan crystalline and Meta-Garhwal region,NW-Himalaya sedimentary sequence of Garhwal region.

Funding Fusion Energy Solutions, Inc.

Adhezion Biomedical Adhezion Biomedical Wadia Institute of Himalayan Geology

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I Table Vl.2 (continued)

Listing of Major Research and Service Projects Preformed or in Progress at the Radiation Center and Their Funding Agencies Project Users Organization Name Project Title Description Funding Oregon State Use of D2O as a contrast enhancement Examination of the improvement in contrast 2182 Reese University for neutron radiography gained by using D2O instead ofH2O in the analysis of concrete curing.

This project is for the irradiation of geological Department of materials with a high fl ux of fast neutrons to Department of facilitate the 39K(n,p)39Ar reaction. lrradiated 2183 Sprain Geological Sciences, Irradiation for 40Ar/39Ar geochronology Geological Sciences, University of Florida geological materials will subsequently be analyzed University of Florida for 40Ar/39Ar geochronological analysis to detennine the age of the geological materials.

Univeresite Grenoble The apatite samples are for three different projects Universite Grenoble 2184 Bernet Alpes Apatite Fission Track irradiations for studying the exhumation of the Himalayas, Alpes Andes, and European Alps.

2185 Taylor Univeresity of Pioneer Mountains AFT Suite of apatite crystals to be irradiated for fission University of Minnesota track dating.

Minnesota 2186 Cao Oregon State Fluorine Content in PFAS standards INAA to detern1ine fluorine content in PFAS Department of University standards.

Chemistry Irradiation of geologic materials (minerals apatite 2187 Stevens Goddard Indiana University Fission Track Analysis and zircon) for fission track analysis (age dating Indiana University of thern1al events) using the external detector method.

2188 Om1e Montana State AFT Irradiation - MSU Irradiation of apatite grains mounted in epoxy for Montana State University fission track analysis at Montana State University.

University This project will develop and build a custom 2189 Kasparek Pacific Northwest Cerenkov In-Pool Noise Characterization UV probe and spectrophotometer to map the UV National Laboratory spectrum in spent fuel ponds and identify and quantify light noise contributions within the pool.

2190 Loveland Oregon State Seperation characterization of mid and Seperation characterization of mid and high Z University high Z elements.

elements.

The sensor is an industrial grade accelerometer which consists of a silicon sensor and ASIC hennitically sealed in a 0.35" square ceramic Sensor Performance vs Total Ionizing package. This project will irradiate several groups 2191 Hulbert Silcon Designs Inc.

Dose (TID) of sensors over a range ofTID and compare the before and after results of a variety of electrical and dynamic measurements to determine the effect(s) of the radiation.

I Table Vl.2 {continued)

Listing of Major Research and Service Projects Preformed or in Progress at the Radiation Center and Their Funding Agencies Project Users Organization Name Project Title Description Funding 2192 Frame Yale University INAA of archaeological and geological Trace-element analysis via INAA of fired clay, materials.

brick, and stone.

In this project we investigate the provenance of Quaternary - Miocene basin-fill sediments in the Pa1monian basin. For this purpose we carry 2193 Arato Institute for Nuclear Pannonian Basin Provenance II out fission-track analysis on apatite and zircon Institute for Nuclear Research, Hungary crystals. The uraniw11 content of these crystals will Research, Hungary be determined via the external detector method, which requires the irradiation of our samples with thermal neutrons.

Support the 69981 Program (Child Project XYZ-Pacific Northwest 70039) at Pacific Northwest National Laboratory Pacific Northwest 2194 Gruendell National Laboratory Lexan slides for fission track irradiation by providing the ability to perfonn fission track National Laboratory irradiation on Lexan slide targets in the thennal column facility.

Carbon nanotube (CNT) has high mechanical and electrical properties and widely used for nanocomposite applications as reinforcement Carbon nanotube properties materials. Highly aligned CNT sheet or yam Florida State showed significant properties improvement due Florida State 2195 Liang University enhancement by e-beam and gamma-ray to high alignment degree over 0.7. High energy University irradiation electron beam or gamma ray irradiation increased the crosslink between CNTs, hence the resulting CNT/epoxy or CNT/BMI composite mechanical properties will be enhanced.

These studies will explore the individual and Housing temperature: an important combined effects of (1) mild chronic cold stress 2196 Iwaniec Oregon State variable for simulated spaceflight studies (induced by room temperature housing) and (2)

Oregon State University hindlimb unloading (HLU) on premature bone loss University

1 usmg mice in C57BL/6 (B6) mice, a strain commonly used in spaceflight/simulated spaceflight studies.

We are developing drug delivery systems using

~

Gamma Sterlization Effects on Drug transdermal delivery systems. In one of our 2197 Prausnitz Gerogia Institute of projects, we are interested in gamma sterilization Georgia Institute of

L!,

Technology Loaded Patches Technology r

for terminal sterilization of our product which is

~

basically a drug/polymer mixture.

.~-~ *****************************************

Table Vl.2 (continued}

Listing of Major Research and Service Projects Preformed or in Progress at the Radiation Center and Their Funding Agencies Project Users Organization Name Project Title Description Funding We would like to get these seeds irradiated Department of Plant for inducing gamma irradiation-induced University of Gamma irradiation-induced chromosomal breaks in varieties MD3 l 5 and PJT 2 198 Tiwari Science and Landscape chromosomal breaks RIL 74-wheats. It will allow us to map targeted Maryland College Architecture Park candidate genes in low recombination regions and will help in overall wheat improvement.

85 wt.% Bi - Silicone will be irradiated using a 2199 Brown Stark Street Materials 85 wt.% Bi-Silicone gamma irradiation GammaCell 220 for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at Oregon State Stark Street Materials Corp.

University to better understand the material property changes after irradiation.

2200 Brown Stark Street Materials Bi-Si Attenuation coefficient Determination of attenuation coeffi cients for Corp.

detennination various gamma energies.

Stark Street Materials Fusariurn species are economically important pathogens of a wide range of crops across the globe. These soilbome funga l pathogens are 2201 Ocamb Oregon State Fusarium diseases in hop, vegetables, even more important as their populations are Oregon State University and seed crops increasing reaching higher levels in the soil.

University Research activities are focused on monitoring the fungal populations in soil and plant parts for the development of mitigation strategies.

2202 Weiss Oregon State NSF 3D printed samples Studying sorptivity of 3D printed samples with NSF University respect to printing directionality Adhezion Biomedical is interested in the effect of Gamma on COC ampoules and the stability of SecurePortIV app with COC Ampoule the product post-irradiation. Analytical testing 2203 Phelps Adhezion Biomedical Gamma-Feasibility Run shall follow on our end after Gamma-irradiation Adhezion Biomedical to detem1ine if this is a good sterilization method to move into a larger scale sterilization for our medical device product line.

Development of prototype neutron radiography Oregon State INL Flash Radiography Camera camera for use in the OSTR Neutron Radiography 2204 Reese University Development Facility. The prototype camera system will be used as part of the INL flash radiography project at TREAT.

Project Users 2205 Privitera 2206 Langtry 2207 Palmer 2208 Cherney 2209 Galindo 2210 Wu 2211 Rogers 2212 Hosmer Table Vl.2 (continued}

Listing of Major Research and Service Projects Preformed or in Progress at the Radiation Center and Their Funding Agencies Organization Name Project Title Description Our goal is to irradiate Antimony pellets in order Kavli Institute for Irradiation of Sb to 5 mCi ofSb-124 for to achieve 5 mCi activity. Up to 5 grams of pellets Cosmological Physics DAMIC-M are available. Pellets will be housed in in 0.5 in diameter x 1 in length polyethylene vial during irradiation.

Avalanche Energy is a VC backed startup developing a small compact deuterium-deuteriwn fusion device which has applications as a high-flux neutron source and longer tem1 potentially for energy generation. This small plasma device Avalanche Energy Compact Neutron Generator (12 cm diameter) combines aspects of an ion trap

( electrostatic ion confinement) with a cylindrical magnetron for ExB electron confinement. First proof of concept experiments are underway at our lab in Seattle and we would like to calibrate our neutron detection equipment at Oregon State's facilities.

This project is funding by INL through NNSA/

NA-22 to investigate using soft snake-like School ofNuclear robots for inspection purposes. Soft material Science and Soft Robotics samples (PDMS with a liquid metal paste) wi ll be Engineering irradiated and materials testing perfonned to better understand the operating constraints of soft robots in radiation environments.

Oregon State Medical Isotope Feasiblity Studies Detennination of feasibility making different University medical isotopes using the TRIGA reactor.

Rosebud Sioux Tribe Multielement analysis of fired clay samples via Historic Preservation INAA of fired clay samples Office INAA.

Tectonic thermal evolution history of Use of fission track analysis to determine U Peking University Junggar Basin content in the sedimentation of Junggar Basin. To study the thennal history of the basin.

Greentree Synergy INAA of metal products.

Elemental analysis via INAA of finely divided elemental metals.

102nd Oregon Civil Isotope production of various sources Production of various sources for training Support Unit purposes.

Funding University of Chicago Avalanche Energy NNSA Peking University 1*******************************************~

Project Users 2213 Pang 22 14 Gordon 2215 Lang 22 16 Reese 2217 Palmer 22 18 Mutin 2220 Arat6 Table Vl.2 (continued)

Listing of Major Research and Service Projects Preformed or in Progress at the Radiation Center and Their Funding Agencies Organization Name Project Title Description The apatite fission track time-temperature modeling is constructed on the laboratory Institute of Geology, annealing data sets and controlled by empirical Extending the time-temperature ranges Arrhenius equations and time and temperature China Earthquake of apatite fission track annealing ranges. Improvement of the annealing ranges Administration would result more comprehensive extrapolations parameters from the lab annealing to the geological time scales.

Redwood Materials Trace impurities in copper foils INAA and LSC to detect trace impurities in copper foils.

Regular irradiations for fission track dating.

Common minerals include: apatite embedded in Georgia Institute of Ongoing fission track irradiations epoxy and zircon embedded in PFA Teflon. All Technology mineral samples are wrapped in Scotch Magic Tape with a piece of low-U mica, labeled with a sharpie and bound together with Parafilm.

Oregon State Looking at the effects of control rod heights during University Investigating Rod Shaddowing calibrations in comparison to MCNP calucalations of rod worths.

School ofNuclear Evaluating fission product yields and branching Science and High Fidelity Fission Product ratios for intermediate lived fission products.

Engineering Measurements This involves the use of a series of clover HPGe detectors to measure the photon spectrums.

INAA to quantify chemical composition of Benjamin Mutin INAA of Iranian Pottery archaeological ceramics from ancient Iran to determine provenance.

In this project we study fission tracks in standard Georg-August FTAIGE apatite and zircon crystals. For the so-called Universitat Gottingen external detector method, the themrnl irradiation of the samples is necessary.

Funding China Earthquake Administration Georgia Institute of Technology Lawrence Livermore National Laboratory Georg-August Universitat Gottingen

~

0

WORK Table Vl.3 Summary of Radiological Instrumentation Calibrated to Support OSU Departments OSUDepartment Number of Calibrations Animal & Rangeland Science Radiation Safety Office 20 Vet Med Total 22 Table Vl.4 Summary of Radiological Instrumentation Calibrated to Support Other Agencies Agency Number of Calibrations Colwnbia Memorial Hospital 2

Columbia Steel Casting

.)

EPA 1

Epic Imaging 2

Grand Ronde Hospital 5

Hillsboro Medical Center 6

Hollingsworth & Vose 1

Knife River 1

Lake Health District 5

NETL, Albany 4

ODOE 11 ODOT 5

Oregon Health and Sciences University 53 Oregon Lottery 1

Oregon State Fire Marshal 38 PSU 14 Radiation Protection Services 84 River Bend Sand & Gravel 2

Salem Hospital 20 Samaritan Health 44 Total 302

WORK Figure Vl.1 Summary of the Types of Radiological Instrumentation Calibrated to Support the OSU TRIGA Reactor and Radiation Center 45 41 40 35 30 25 20 15 10 5

0 ALPHA GM ION MICRO PERSONAL DETECTORS DETECTORS CHAMBERS METERS DOSIMETERS

-Words Publications Aguilar, R., Thouret, J.-C., Samaniego, P., Womer, G., Jicha, B., Paquette, J.-L., Suafia, E., Finizola, A., 2022.

Growth and evolution of long-lived, large volcanic clusters in the Central Andes: the Chachani Volcano Cluster, southern Peru, Journal ofVolcanology &

Geothermal Research, v. 426, 107539, doi :10.1016/j.

jvolgeores.2022.107539.

Aiello, G., Amato, V., Aucelli, P.P.C., Barra, D., Corrado, G.,

Di Leo, P., Di Lorenzo, H., Jicha, B., Pappone, G.,

Parisi, R., Petrosino, P., Em10lli, E.R., Schiattarella, M., 2021. Multiproxy study of cores from the Garigliano Plain: an insight into the Late Quaternary coastal evolution of central-southern Italy.

Alden, J.R. & L. Mine. (invited chapter). Anshan Within the Regional Economy: A Comparison of the Banesh and Kaftari Cities. The Archaeology of the Southeastern Iranian Plateau: A Festschrift in Honor ofC.C. Lamberg-Karlovsky (ed. B. Mutin & N.

Eskandari). Brepols Publishers, Belgium.

Alden, J.R., L. Mine, S. Bruehlman-Barbeau, & G. Stein.

(2021). Dalma Ceramics at Surezha in the Erbil Plain: Stylistic, Compositional, and Petrographic Evidence for trans-Zagros Interaction during the Terminal Ubaid/Late Chalcolithic I. Journal of Archaeological Science: Reports, 39 (2021) 103168.

Alfaro, A., Gaze!, E., White, WM., Jicha, B., Rasbury, T.,

2021. Unravelling the genesis of young continental-arc shoshonites in the Talamanca Cordillera, Costa Rica, Lithos, v. 386-387, doi:10.1016/j.

lithos.2021.106017.

Armstrong, E.M., Ault, A.K., Bradbury, K.K., Savage, H.M., Polissar, P.J. & Thomson, S.N. (2022).

A multi-proxy approach using zircon (U-Th)/

He thennochronometry and biomarker thermal maturity to robustly capture earthquake temperature rise along the Punchbowl Fault, California.

Geochemistry, Geophysics, Geosystems. v. 23, e202 l GC0 10291, doi: 10.1029/2021GCO10291 B.S. Singer, B.R. Jicha, D. Sawyer, I. Walaszczyk, R.

Buchwaldt, J. Mutterlose (2021) Geochronology of late Albian-Cenomanian strata in the U.S.

Western Interior. Geological Society of America Bulletin,v. 133, p. 1165-1678.doi:doi:I0.1130/

B35794. l Bagdasaryan, T.E., Latyshev, A.V., Thomson, S.N.,

Veselovskiy, R.V., Zaitsev, VA. & Marfin, A.E.

(2022). Thermal history of the Siberian Traps Thermal history of the Siberian Traps Large Igneous Province revealed by new apatite fission-track and geochronology data from intrusions.

Tectonophysics, v. 836, p. 229385, doi:10.1016/j.

tecto.2022.229385 Betka, P.M., Thomson, S.N., Sincavage, R., Zoramthara, C., Lahremruatfela, C., Lang, K.A., Steckler, M.S., Bezbaruah, D., Borgohain, P., Seeber, L. (2021). Provenance shifts during Neogene Brahmaputra Delta progradation tied to coupled climate and tectonic change in the eastern Himalaya. Geochemistry, Geophysics, Geo systems, v. 22, p, e202 l GC0 I 0026, doi :

10.1029/2021GCO10026.

Bezard, R., Hoernle, K., Pfaender, J.A., Jicha, B.R.,

Werner, R., Hauff, F., Portnyagin, M., Sperner, B., Yogodzinski, G.M., Turner, S., 2021.

40Ar/39Ar ages and bulk rock chemistry of the lower submarine units of the central and western Aleutian Arc, Lithos, v. 392-393, doi:10.1016/j.

lithos.2021.106147.

Boncio, P., Auciello, E., Amato, V., Aucelli, P., Petrosino, P., Tangari, A., Jicha, B.R., 2022. Late Quaternary faulting in southern Matese ( central Italy): implications for earthquake potential in the southern Apennines, Solid Earth, v. 13, 553-582, doi: 10.5194/se-13-553-2022.

Boscaini, A., A. Marzoli, H. Bertrand, M. Chiaradia, F.

Jourdan, M. Faccenda, C. Meyzen, S. Callegaro, L. Serrano-Duran. (in press). Cratonic keels controlled the emplacement of the Central Atlantic Magmatic Province (CAMP). Earth and Planetary Science Letters.

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WORDS Brown, L.L., Singer, B.S., Barquero-Molina, M. (2021)

Paleomagnetism and 40Ar/39Ar Chronology of Ignimbrites and Lava Flows, Central Volcanic Zone, Northern Chile. Journal of South American Earth Sciences, v. 106, p. 103037.

Bruck, B.T., Singer, B.S., Schmitz, M.D., Carroll, A.R.,

Meyers, S., Walters, A. (submitted, in review).

Astronomical and tectonic influences on climate and deposition revealed by a Bayesian age-depth model of the Early Eocene Green River Formation, Wyoming. GSA Bulletin.

Chang, S.-C., J. Wang, C.-F. Zhou, F. Jourdan. Jehol fossils from the Jiaolai Basin of Shandong, North China:

review and new perspectives Mesozoic Biological Events and Ecosystems in East Asia. GSL Special Publication 521 "Mesozoic Biological Events and Ecosystems in East Asia".

Chen L, Song C, Wang Y, Fang X, Zhang Y, Zhang J, Chen Y, He P. (2021). Mesozoic-Cenozoic Uplift/

Exhumation History of the Qilian Shan, NE Tibetan Plateau: Constraints From Low-Temperature Thermochronology. Frontiers in Earth Science, 9:

760100.

Edwards, B.R., Russell, J.K., Jicha, B., Singer, B.,

Dunnington, G., Jansen, R. (2021) A 3 m.y.

record of volcanism and glaciation in northern British Columbia. Geological Society of America Special Paper, Untangling the Quaternary Period:

A Legacy of Stephen C. Porter. edited by:

Waitt, R.B., Thackray, G.D., & Gillespie, A.R.,

doi : 10.1130/2020.2548( 12)

Fabrizio Marra, Alison Pereira, Giovanni Boschian, Sebastien Nomade. (2022). The MIS 13 and MIS 11 aggradational successions: geochronological constraints to sea-level fluctuations and to the Acheulean sites of Castel di Guido and Malagrotta (Rome, Italy). Quaternary International.

doi: 10.1016/j.quaint.2021.12.016 Florindo F, Marra F, Angelucc D-E, Biddittu I, Bruni L, Florindo F, Gaeta M, Guillou H, Jicha B, Macri P, Morigi C, Nomade S, Parenti F, Pereira A, Grimaldi S. (2021). Chronostratigraphy oftheAnagni basin, central Italy, Environmental evolution, fauna! and hwnan occupation since 2 Ma. Scientific Reports 11 :7056. doi: 10.1038/s41598-02 l-85446-5 Florindo, F., Marra, F., Angelucci, D., Biddittu, I., Bruni, L., Florindo, F., Gaeta, M., Guillou, H., Jicha, B.,

Macri 1, P., Morigi, C., Nomade, S., Parenti, F.,

Pereira, A., Grimaldi, S., 2021. Chronostratigraphy of the Anagni basin, central Italy: Environmental evolution, fauna! and hwnan frequentation since 2 Ma, Scientific Reports, 11, doi: 10.1038/s41598-02 l-85446-5.

Frahm, E., Carolus, C.M., Cameron, A., Berner, J., Brown, H., Cheng, J., Kalodner, J., Leggett, J., Natale, A., Seibert, S., Sparks-Stokes, D., Wuellner, E.

(2022). Introducing the BRJCC (Bricks and Rocks for Instrwnents' Ceramic Calibration) sets: Open-source calibration materials for quantitative X-ray fluorescence analysis. Journal of Archaeological Science: Reports, 43, 103443.

Franz, G., M. Sudo, & V. Khomenko. (2022). 40Ar/39Ar dating of a hydrothermal pegmatitic buddingtonite-muscovite assemblage from Volyn, Ukraine.

European Journal of Mineralogy, 34, 7-18.

doi: 10.5194/ejm-34-7-2022 Fu, D., B. Huang, T. Johnson, S. Wilde, F. Jourdan, A.

Polat, B. Windley, Z. Hu, and T. Kusky. (2022).

Boninitic blueschists record subduction initiation and subsequent accretion of an arc-forearc complex in the NE Proto-Tethys. Geology 50, 10-15.

Gamier, B., Tikoff, B., Flores, 0., Jicha, B., DeMets, C.,

Consenza-Muralles, B., Hernandez, D., Mixco, L.,

and Hernandez, W., 2021. An integrated structural and GPS study of the Jalpatagua fault, south eastern Guatemala, Geosphere, v. 17, p. 20 1-225, doi: 10. l 130/GES02243. l.

Garnier, B., Tikoff, B., Flores, 0., Jicha, B., DeMets, C.,

Hernandez, W., Greene, D., 2022. Deformation in western Guatemala associated with the NAFCA (North Arnerica-Forearc-Caribbean) triple junction:

Neotectonic strain localization into the Guatemala City graben, Tectonics, 41, e2021TC006739.

doi: 10.1029/2021 TC006739.

Georgiev, S., Marchev, P., Jicha, B., Banushev, B., Raicheva, R., Peytcheva, I., von Quadt, A., 2021. 40Ar/39Ar age and petrology of magmatic rocks from East Balkan (Bulgaria) constrain the initiation ofregional subduction in SE Europe, Lithos, v. 398-399, doi: 10.1016/j.lithos.2021.106302.

WORDS Giaccio B, Marino G, Marra F, Monaco L, Pereira A, Zanchetta G, Gaeta M, Leicher N, Nomade S, Palladino D-M, Sottili G, Guillou H, Scao V. (2021).

Tephrochronological constraints on the timing and nature of sea-level rise prior to and during glacial termination V. Quaternary Science Reviews 263 106967. doi: 10.1016/j.quascirev.2021.106976 Gibbons, J.V., Barton, M.D., Seedorff, E., Thomson, S.N. &

Steele-Mclnnis, M. (accepted, in revision, 2022).

Evolution of the Pampa Escondida porphyry copper deposit, northern Chile: Sequence of vein fonnation and patterns of hydrothermal alteration. Economic Geology.

Gosses, J., Carroll, A.R., Bruck, B.T., Singer, B.S.,

Jicha, B.R., Aragon, E., Wilf, P. (2021) Facies interpretation and geochronology of diverse Eocene floras and faunas, northwest Chubut Province, Patagonia,Argentina. Bulletin, v. 133, p. 740-752.

Gusmeo, T., Schito, A., Corrado, S., Alania, Y., Enukidze, 0., Zattin, M., Pace, P. & Cavazza, W. (accepted).

Tectono-thermal evolution of central Transcaucasia:

thermal modelling, seismic interpretation, and low-temperature thermochronology of the eastern Adjara-Trialeti and western Kura sedimentary basins (Georgia). Journal of Asian Earth Sciences.

He P, Song C, Wang Y, Zhang Y, Chen W, Meng Q, Zhao Y. (2021 ). Intensified Late Miocene Deformation in the Northern Qaidam Basin, Northern Tibetan Plateau, Constrained by Apatite Fission-Track Thermochronology. Frontiers in Earth Science, 9:

750993.

Jepson, G., Carrapa, B., George, S.W.M., Reeher, L.J.,

Kapp, P.A., Davis, G.H., Thomson, S.N., Amadori, C., Clinkscales, C., Jones, S., Gleadow, A.J.W.

& Kohn, B.P. (2022). Where did the Arizona-piano go? Protracted thinning via upper-to lower-crustal processes. Journal of Geophysical Research - Solid Earth, v. I 27, e2021JB023850, doi : 10.1029/2021 JB023850.

Jiang, Q., F. Jourdan, H. Olierook, R. Merle, J. Bourdet, D.

Fougerouse. Rate of volcanic CO2 governed the severity of past environmental crises. Proceedings of the National Academy of Sciences 119(31) e2202039119.

Jicha, B.R., Hernandez, W, H., 2022. Reconstruction of effusive and explosive eruptions at the Ilopango caldera complex, El Salvador, Journal ofVolcanology

& Geothermal Research, v. 421, doi:10.1016/j.

jvolgeores.2021.107426.

Jones, M.M., Sageman, B.B., Selby, D., Jicha, B.R., Singer, B.S. (2021) Regional chronostratigraphic synthesis of the Cenomanian-Turonian OAE2 interval, Western Interior Basin (USA): New Re-Os chemostratigraphy and 40Ar/39Ar geochronology. Geological Society of America Bulletin. v. 133, p. 1090-1104. doi :10.1130/

B35594. l Klug, J.D., Ramirez, A., Singer, B.S., Jicha, B.R., Mixon, E.E.,

Martinez, P., Intercalibration of the Servicio Nacional de Geologia y Mineria (SERNAGEOMIN), Chile and WiscAr 40Ar/39Ar laboratories for Quaternary dating. Quaternary Geochronology, in press.

Koester, E., R. Siviero; L.A.D. Fernandes, F. Jourdan.

(accepted). Tonian and Cryogenian 40Ar/39Ar hornblende and muscovite ages for the Sao Gabriel Terrane, Dom Feliciano Belt, southern Brazil.

Geological Journal.

Kynaston, D., Bhattacharya, J.P., Singer, B.S., Jicha, B.R.

(2021) Facies architecture and time stratigraphic relationships ofa confined trunk-tributary valley fill and unconfined fluvial system with the backwater of the Turonian Ferron-Notom delta, Utah. Journal of Sedimentary Research, v. 91, p. 66-91.

L.G. Medaris, B.S. Singer, B.R. Jicha, D.H. Malone, J.J.

Schwartz, E. K. Stewart, A. Van Lankvelt, M.L.

Williams, P.W. Reiners (2021 ) Early Mesoproterozoic evolution of midcontinental Laurentia: Defining the geon 14 Baraboo orogeny. Geoscience Frontiers, 12, doi: 10.1 Ol 6/j.gsf.2021.101174 Li, P., M. Sun, T. Narantsetseg, F. Jourdan, W. Hu, and C.

Yuan. (accepted). First structural observation around the hinge of the Mongolian Orocline (Central Asia):

implications for the geodynamics of oroclinal bending and the evolution of the Mongol-Okhotsk Ocean.

GSA bulletin.

Li, Y., Jicha, B.R., Wu, H., Wang, X., Singer, B.S., He, H.,

Zhou, Z (2022) Rapid preservation of Jehol Biota in Northeast China from high precision 40Ar/39Ar geochronology. Earth and Planetary Science Letters, in press.

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1*

1* * * * * * *

WORDS Li, Y.J., Jicha, B.R., Zhang, W.F., Chen, W., Singer, B.S., Zheng, D.W., He, H.Y. (in review, 2022).

Characterization of the SK0l 40Ar/39Ar sanidine reference material. Geostandards and Geoanalytical Research.

Li, You Jia, Yang Zhao, Shi Xiao Hui, Shen Chuan Bo, Dong Yun Peng, Cheng Bin. (2022). Exhumation and deformation of the Daba Shan Orocline as determined from modem river sands apatite fission-track. Journal ofEarth Science. doi:10.1007/sl2583-022-1632-2 Lihao Chen, Yadong Wang, Pengju He, Chunhui Song, Qingquan Meng, Wei Feng, Wenqi Chen, Xinghong Wang. (2022). Mesozoic-Cenozoic multistage tectonic deformation of the Qilian Shan constrained by detrital apatite fission track and zircon U-Pb geochronology in the Yumu Shan area.

Tectonophysics, 822: 229151.

Lin, W., Bhattacharya, J.P., Jicha, B.R., Singer, B.S.,

Matthews, W. (2021) Has Earth ever been ice-free?

Implications for glacio-eustasy in the Cretaceous greenhouse age using high-resolution sequence stratigraphy, Geological Society of America Bulletin, v. 133, p. 243-252. doi:10.1130/B35582.l Liu D, Li H, Ge C, Bai M, Wang Y, Pan J, Zheng Y, Wang P, Liu F, Wang S. (2021). Northward Growth of the West Kunlun Mountains: Insight From the Age-Elevation Relationship of New Apatite Fission Track Data. Frontiers in Earth Science, 9: 784812.

Logan IE, Shulzhenko N, Sharpton TJ, Bobe G, Liu K, Nuss S, Jones ML, Miranda CL, Vasquez-Perez S, Pennington JM, Leonard SW, Choi J, Wu W, Gurung M, Kim JP, Lowry MB, Morgun A, Maier CS, Stevens JF, Gombart AF. (2021 ). Xanthohw11ol Requires the Intestinal Microbiota to Improve Glucose Metabolism in Diet-Induced Obese Mice.

Mol Nutr Food Res 65(21):e2100389. doi: 10.1002/

mnfr.202100389. Epub 2021 Oct 12. PMID:

34496124;PMCID:PMC8571065 Margirier, A., Strecker, M.R., Reiners, P.W., Thomson, S.N.,

Casado-Ferrer, I., George, S.W.M. & Alvarado, A.

(accepted, in revision, 2022). ExhUJ11ation of the Western Cordillera, Ecuador, driven by late Miocene subduction of the Carnegie Ridge. Tectonics.

Marra, F., Cardello, G.L., Gaeta, M., Jicha, B.R., Montone, P.,

Niespolo, E.M., Nomade, S., Palladino D.M., Pereira, A., De Luca, G., Florindo, F., Frepoli, A., Renne, P.R., Sottili, G., The Volsci Volcanic Field (central Italy): an open window on continental subduction processes, 2021. International Journal of Earth Sciences, v. ll0, 689-718, doi:10.1007/s00531-021-01981 -6.

Marra, F., Frepoli, A., Gaeta, M., Jicha, B., Montone, P.,

Niespolo, E., Nomade, S., Palladino, Pereira, A.,

Cardello, L., De Luca, G., Florinda, F., Renne, P., Sottili, G. (2021). The Volsci Volcanic Field (central Italy): eruptive history, magma system and implications on continental subduction processes.

International Journal of Earth Sciences, 110, 2, 689-718.

McHone, J., S. Barr, F. Jourdan. (2022). Petrology of the Lepreau River dyke of Southern New Brunswik, Canada: source of the end-Triassic Fundy group basalts. Canadian Journal of Earth Sciences 59, 12-

28.

Mine, L. (report in preparation, 2022). Reconstrucci6n de Sistemas de Intercambio basados en Analisis de Oligoelementos de Cceramica Oaxaquefia. Informe final al Instituto Nacional de Antropologia e Historia, Mexico.

Mine, L., M. Winter, & C. Martinez-Lopez. (2022). The Evolution ofCrema (Cream) Wares in the Valley of Oaxaca - Insights from INAA and Ceramic Petrography. Journal of Archaeological Science Reports, l 4-June-2022.

Mixon, E.E., Jicha, B.S., Tootell, D., Singer, B.S. (2022)

Optimizing 40Ar/39Ar analysis using an Isotopx NGX-600 mass spectrometer. Chemical Geology, v.

593, 120753 Mixon, E.E., Singer, B.S., Jicha, B.R., Ramirez, A. (2021)

Calbuco, a monotonous andesitic high-flux volcano in the Southern Andes, Journal ofVolcanology and Geothennal Research, v. 416 doi:10.1016/j.

jvolgeores.2021.107279

WORDS Monaco L, Palladino D-M, Gaeta M, Marra F, Sottili G, Leicher N, Mannella G, Nomade S, Pereira A, Regattieri E, Wagner B, Zanchetta G, Albert P-G, Arienzo I, D' Antonio M, Petrosino P, Manning C, Giaccio B. (202 1). Mediterranean tephrostratigraphy and peri-Tyrrhenian explosive activity revised through the 430-365 ka record from Fucino Basin (central Italy). Earth Science Reviews.

doi: 10.1016/j.earscirev.2021.103706 Monaco, L., Giaccio, B., Palladino, D.M., Albert, P.G, Arienzo, I., Conticelli, S, Di Vito, M., Fabbrizio, A, D' Antonio, M., Isaia, R, Manning, CJ, Nomade, S, Pereira, A, Petrosino, P, Sottili, G, Sulpizio, R, Zanchetta, G. (2022). Linking the Mediterranean MIS 5 tephra markers to the 109-92 ka Campi Flegrei explosive activity (southern Italy) and refining the chronology of the MIS 5c-millennial-scale climate variability. Global planetary change, 211. doi : I 0.1016/j.gloplacha.2022. 103 785 Okay, A.I., Topuz, G., Kylander-Clark, A.R.C., Sherlock, S.

& Zattin, M. (accepted). Late Paleocene-Middle Eocene magmatic flare-up in western Anatolia.

Lithos.

Olierook, H., F. Jourdan; C. Kirkland; C. Elders;

. Evans;

. Timms; J. Cunneen; B. McDonald; C. Mayers; A. Frew; Q. Jiang; L. Olden; K. McClay. (in press, 2022). Mafic intrusions in southwestern Australia related to supercontinent assembly or breakup?

Australian Journal of Earth Sciences.

Olierook, H.K.H., J. Gale, F. Pirajno, F. Jourdan, C.L.

Kirkland, N.J. Evans, BJ. McDonald, Q. Jiang, A.S. Kumara, M. Krejci, H. Kaag, B. I. A. Mclnnes.

(accepted). Terminal tectono-magnrntic phase of the ew England Orogen driven by lithospheric delamination. Gondwana Research.

Olivetti, V., Catto, S. & Zattin, M. (2022). Increased erosion of high-elevation land during late Cenozoic:

evidence from detrital thermochronology off-shore Greenland. Scientific Reports, 12, 9932. DOI:

10.1038/s4 l 598-022-l4129-6 Ozdemir, Y., V. Oyan, F. Jourdan. (in press). Petrogenesis of Middle Miocene to Early Quaternary basalts from Karayaz1-Goksu Plateau (Eastern Turkey):

Implication for role of pyroxenite and lithospheric thickness. Lithos.

Pank, K., Hansteen, TH., Geldmacher, J., Garbe-Schonberg, D., Jicha, B., Hoernle, K., 2022. Origin and evolution of the lowern1ost lava successions at Santorini volcano (Greece): insights from major and trace element composition of rocks from the submarine caldera wall. Journal ofVolcanology &

Geothermal Research, v. 427, 107556, doi:10.1016/j.

jvolgeores.2022. 107556.

Peng H., Wang, J., Liu, C., Ma, M., Ma, Q., Li, K., PAN J., Li, J., Win, Y., Xie, Q. & Zattin, M. (2022).

Meso-Cenozoic growth of the eastern Qilian Shan, northeastern Tibetan Plateau margin: insights from borehole apatite fission-track thermochronology in the Xiji Basin. Marine and Petroleum Geology, 143, 105798. DOI: 10.1016/j.marpetgeo.2022.105798.

Peng, H., Wang, J., Liu, C., Huang, L. & Zattin, M. (2022).

Mesozoic exhumation and ca. 10 Ma reactivation of the southern Yin Shan, North China, revealed by low-temperature thermochronology. Tectonophysics, 823, 229189. DOI: 10.1016/j.tecto.2021.229189.

Peng, Heng, Jianqiang Wang, Chiyang Liu, Ming Ma, Qian Ma, Keliang Li, Jin Ii Pan, Jiaoli Li, Yang Qin, Qiangwang Xie, Massimiliano Zattin. (2022).

Meso-Cenozoic growth of the eastern Qilian Shan, northeastern Tibetan Plateau margin: Insight from borehole apatite fission-track thermochronology in the Xiji Basin. Marine and Petrolewn Geology, 143, 105798, doi: I 0.1016/j.marpetgeo.2022.105798 Petrosino, P., Angrisani, A.C., Barra, D., Donadio, C., Aiello, G., Allocca, V., Coda, S., De Vita, P., Jicha, B.R.,

Calcaterra, D., 2021. Multiproxy approach to urban geology of the historical center of Naples (Italy),

Quaternary International, v. 577, 147-165.

Phillips, D., Matchan, E.L., Dalton, H., Kuiper, K.F. (2022).

Revised astronomically calibrated 40Ar/39Ar ages for the Fish Canyon Tuff sanidine - Closing the interlaboratory gap. Chemical Geology, 597: 1208 15.

Pipiska, T., Cappellazzi, J., Leavengood, S., Kamke, F. A.,

Presley, G. and Decky, D. (2021 ). Utilization of the Western Juniper (Juniperus occidentalis) in Strandboards to Improve the Decay Resistance.

BioResources 16(2).

WORDS Randazzo, N., Wu,T., Bhattacharya, J., Walecki, M., Fries, K., Nelson, R., Kim, S-T., Jicha, B.R., Singer, B.S.

(submitted, in review). Plausibility ofMilankovitch Cycles in an Ultra-Greenhouse World: Stratigraphic Correlation and Sea Level Reconstruction of the Turonian Western Interior Seaway using Tephrochronology and Biostratigraphy. GSA Bulletin.

Riedl, S., D. Melnick, L. Njue, M. Sudo, and M. R. Strecker (2022): Mid-Pleistocene to recent crustal extension in the inner graben of the northern Kenya Rift.

Geochemistry, Geophysics, Geosystems, 23, e2021GC0 I 0123. doi : l 0.1029/2021 GC0l 0123 Rivera, TA., Schmitz, M.D., White, C.M., Jicha, B.R.,

2021. Petrogenesis of Pleistocene basalts from the Western Snake River Plain, Idaho, Journal of Petrology, doi: 10.1093/petrology/egaal 08.

Schaen, A.J., Jicha, B.R., Hodges, K.,... Singer, B.S., and 3 7 others (2021) Reporting and interpretation of 40Ar/39Ar geochronologic data. Geological Society of America Bulletin, v. I 33, p. 461 -487 doi :10. l 130/B35560.l Schaen, A.J., Jicha, B.R., Hodges, K.V., Vermeesch, P.,

Stelten, M.E., Mercer, C.M., Phillips, D., Rivera, T.A., Jourdan, F., Matchan, E.L., Hemming, S.R.,

Morgan, L.E., Kelley, S.P., Cassata, W.S., Heizler, M.T., Vasconcelos, P.M., Benowitz, J.A., Koppers, A.A.P., Mark, D.F., Niespolo, E.M., Sprain, C.J.,

Hames, W.E., Kuiper, K.F., Turrin, B.D., Renne, P.R., Ross, J., omade, S., Guillou, H., Webb, L.E.,

Cohen, B.A., Calvert, A.T., Joyce,

., Ganernd, M., Wijbrans, J., Ishizuka, 0., He, H., Ramirez, A.,

Pfander, J.A., Lopez-Martinez, M., Qiu, H., Singer, B.S. (2021). Interpreting and reporting 40Ar/39Ar geochronologic data. Bulletin of the Geological Society of America, 133 (3-4), pp. 461-487.

Schaen, A.J., Schoene, B., Dufek, J., Singer, B.S., Eddy, M.P., Jicha, B.R., Cottle, J.M. (2021) Transient rhyolite melt extraction to produce a shallow granitic pluton, Science Advances, 7 (21 ), eabfil604 Stein, R.A., Sheldon,

.D., Dzombak, R.M., Smith, M.E.,

Allen, S.E., Jicha, B.R, 2021. Climate and ecology in the Rocky Mountain interior after the early Eocene Climatic Optimum, Climate of the Past, v.

17, 25 15-2536, doi: 10.5 l 94/cp-17-2515-2021.

Su Y, Ganguli-Indra G, Bhattacharya N, Logan IE, Indra AK, Gombart AF, Wong SL, Xie J. (2022). Codelivery of la,25-Dihydroxyvitarnin D3 and CYP24Al Inhibitor VID400 by Nanofiber Dressings Promotes Endogenous Antimicrobial Peptide LL-37 Induction.

Mo! Phann 19(3):974-984. doi : 10.1021/acs.

molpharmaceut.lc00944. Epub 2022 Feb 18. PMID:

35179903 Sun, M., Y.-G. Xu, E. Gaze!, J. Li, W.-F. Zhang, L. Zhang, P.-

L. He, Y.-Y. Xiao, F. Jourdan, S.A. Wilde. (in press).

Exploring small-scale recycled mantle components with intraplate continental twin volcanoes. Chemical Geology.

Tao, Z., Yin, J., Sun, M., Wang, T., Yuan, C., Chen, Wen, Huang, H., Seltrnann, R., Thomson, S.N. & Chen, Y. (2022). Spatial and temporal variations of geochemical and isotopic compositions of Paleozoic magmatic rocks in the Western Tianshan, NW China:

a magmatic response of the Advancing and Retreating Subduction. Journal of Asian Earth Sciences, doi :

10.10 l 6/j.jseaes.2022.105112.

Tao, Z., Yin, J., Xiao, W., Seltrnann, R., Chen, W., Sun, M., Wang, T., Yuan, C., Thomson, S.N., Chen, Y. & Xia, X. (2022). Contrasting styles of peraluminous S-type and I-type granitic magmatism:

Identification and implications for the accretionary history of the Chinese South Tianshan. American Journal of Science, v. 322 (2) p. 280-312; doi: 10.24 75/02.2022.06.

Taylor, R., L.E. Morgan, F. Jourdan, T. Monecke, E.E. Marsh, R.J. Goldfarb. (2022). New 40Ar/39Ar constraints on the age of orogenic gold mineralization in the Klamath Mountains, California, U.S.A.: Evidence for far-field tectonic controls. Ore Geology Review 141,

104661.

Trevino, S.F., Miller, C.A., Tikoff, B., Fournier, D., Singer, B.S. (2021) Multiple, coeval silicic magma storage domains beneath the Laguna Del Maule volcanic field inferred from gravity investigations. Journal of Geophysical Research, v. 126, e2020JB020850.

Wang P, Liu D, Li H, Chevalier M-L, Wang Y, Pan J, Zheng Y, Ge C, Bai M, Wang S. (2021). Sedimentary Provenance Changes Constrain the Eocene Initial Uplift of the Central Pamir, NW Tibetan Plateau.

Frontiers in Earth Science, 9: 741194.

WORDS Wang, P., H. Zheng, Y. Wang, X. Wei, L. Tang, F. Jourdan, J. Chen, X. Huang. (2022). Sedimentology, chronology, and provenance of the "Yangtze Gravel": Link the Lower Yangtze River to Late Cenozoic tectonic and climate in southeast China.

GSA bulletin 134, 463-486.

Willner, A.P., C.R. van Staal, J. Glodney, M. Sudo and A. Zagorevski (2022): Conditions and timing of metamorphism near the Baie Verte Line (Baie Verte Peninsula, NW Newfoundland, Canada):

Multiple reactivations within the suture zone of an arc-continent collision. New Developments in the Appalachian-Caledonian-Variscan Orogen:

Geological Society of America Special Paper 554, 209-24 I, doi: IO. l l 30/2022.2554(09)

Wintsch, R., Wathen B., McAleer, R., Matthews, J.

(submitted, in review). Chemical and mechanical overstepping: solution creep in the development of a retrograde Alleghanian shear zone in the Northern Appalachians. American Journal of Science.

Zhang, G., Zhang, J., Dalton, H., Phillips, D. (2022).

Transition of Pacific-to-Indian-type mantle in the western Pacific evidenced by Early Cretaceous arc volcanism on the Gagua Ridge. Geochemistry, Geophysics, Geosystems.

Zheng, H., Q. Yang, S. Cao, P.D. Clift, M. He, A. Kano, R.

Tada, F. Jourdan. (2022). From Desert to Monsoon:

Irreversible Climatic Transition at - 36 Ma in Southeastern Tibetan Plateau. Progress in Earth and Planetary Science 9:12, 1-1 4.

Presentations Bagdasaryan, T.,Latyshev, A.V., Thomson, S.N.,

Veselovskiy, R.V., Zaitsev, V/A. & Marfin, A.E.

(2022) New insights from low-temperature thern1ochronology into the tectonic-thermal evolution of the Siberian Traps Large Igneous Province. European Geophysical Union, Virtual Meeting 2022, abstract EGU22-l 0416.

Gusmeo, T., Cavazza, W., Zattin, M., Corrado, S., Schito, A.,

Alania, V. & Enukidze, 0. (23-27 May 2022). Burial and exhumation history of the Georgian sector of the central Greater Caucasus. EGU General Assembly.

Jepson. G., Carrapa, B., George, S.S.M., Reeher, L., Kapp, P.A., DeCelles, P.G., Davis, G.H., Thomson, S.N.,

Amadori, C. Jobes, S., Gleadow, A.J.W. & Kohn, B.P.

(2021). Where did theArizonaplano go? middle to lower crustal processes required. Geological Society of America Abstracts with Programs. (53) No. 6, 2021 doi: 10.l 130/abs/2021AM-367634.

Klotz, T., Pomella, H., Sieberer, A.-K., Ortner, H., and Dunk!,

I. (23-27 May 2022). Internal defomiation of the Dolomites Indenter, eastern Southern Alps: structural field data and low-temperature thermochronology, EGU General Assembly 2022, Vienna, Austria, EGU22-l 1266, doi: I 0.5194/egusphere-egu22-l I 266 Mallery, C., Licht, K.J., Thomson, S.N., van de Flierdt, T.,

Marschalek, J., Perotti, M., Zurli, L., and the IODP Expedition 374 Scientists (2021). Detrital Zircons as a Tracer of Paleo-Ice Sheet Dynamics and Subglacial Geology in the Central Ross Sea, Antarctica.

American Geophysical Union, Fall Meeting 2021,

Abstract, Session, CO 11.

Margirier, A., Thomson, S.N. & Reiners, P.W. (2022). Timing of incision of the western margin of the Colorado Plateau, new thermochronological data from Zion Canyon. European Geophysical Union, Virtual Meeting 2022, abstract EGU22-l 788.

Martinez-Lopez, C., and L. Mine. (December 2021). Algo mas sobre la relacion entre Monte Alban y Teotihuacan a traves del analisis de activacion neutronica de la ceramica prehispanica. Ponencia "Monte Albany sus Interacciones Regionales", Primera Mesa Redonda Virtual de Monte Alban, en conmemoracion del XXXIV Aniversario de la inscripcion como Sitio Patrimonio Mundial de la Humanidad de la Zona Arqueologica de Monte Alban.

Ojo, 0., Thomson, S.N. & Lao-Davila, D.A. (2021). Neogene-Quaternary rifting of the southern Malawi Rift and Linkage to the Late Carboniferous-Early Jurassic Shore Rift. Geological Society of America Abstracts with Programs (53), No. 6, 2021, doi: 10.1130/

abs/202 lAM-368982.

Peng, Heng, Jianqiang Wang, Chiyang Liu, Lei Huang, Massimiliano Zattin. (2022). Meso-Cenozoic exhumation of the southern Yin Shan, North China, revealed by low-temperature thermochronology. 2021 Chinese Young Scientist Forum of Earth Science.

1* * * * * * * * * *

WORDS Pomella, Hannah Co-Autorlnnen: Ortner, Hugo; Sieberer, Anna-Katharina; Klotz, Thomas. (09 March 2022).

Defonnation in front of and within the Dolomites Indenter. TSK 2022 - 19th Symposium of Tectonics, Structural Geology and Crystalline Geology, Halle (Saale).

Presley, G., Cappellazzi, J., Konkler, M. (9 November 2021).

Oregon State University Utility Pole Research Cooperative 41st Annual Meeting, Corvallis, Oregon.

Ryzewski, K., J. Cherry, and L. Mine. (June 2022). A Preliminary Archaeometric Study of the Production and Provenance of Coarseware Pottery from Montserrat. 29th Congress of the International Association of Caribbean Archaeology (IACA),

Varadero, Matanzas, Cuba.

Siddoway, C.S., Thomson, S.N., Taylor, J.M., Pepper, M.,

Furlong, H., Ruggiero, J. and Reed, B. (2022).

Enlisting historically excluded undergraduates in the effort to extend knowledge of West Antarctica's bedrock, through course-based undergraduate research experiences (cures) and Art-Science initiatives. 2022 WAIS Workshop, Estes Park, Colorado, USA.

Taylor, J.M., Swope, F., Siddoway, C.S., Thomson, S.N.,

Teyssier, C. (2022). Topographic evolution of WAIS subglacial bedrock: Insights from low-temperature thennochronology and thenno-kinematic modeling in Marie Byrd Land, West Antarctica. 2022 WAIS Workshop, Estes Park, Colorado, USA.

Taylor, J.M., Swope, F., Siddoway, C.S., Thomson, S.N.,

Teyssier, C. (2021). Development of Glacial Topography over a Hot Geothenn: Insights from Low-Temperature Thennochronology and Thenno-Kinematic Modeling in Marie Byrd Land, West Antarctica. American Geophysical Union, Fall Meeting 2021, Abstract, Session EP04 7.

Thomson, S.N., Reiners, P.W., He, J., Hemming, S.R., &

Licht, K.J. (2021). Escarpment retreat following end-Eocene rift flank uplift of the central Transantarctic Mountains supports a not-so-icy Oligocene Antarctica. American Geophysical Union, Fall Meeting 2021, Abstract, Session EP047.

Students Bell, Christian. MS, 2022, University of Melbourne.

"Radioisotope geochronology: A comparative analysis using 3 methods on kimberlites from Southern Africa." (Advisors David Phillips, Hayden Dalton).

Bruck, Ben. MS, University of Wisconsin-Madison.

"Astronomical influences on deposition revealed by a Bayesian age-depth model of the early Eocene Green River Fonnation, WY." (Advisor Brad Singer).

Chen, Lihao. PhD, Chinese Academy of Sciences. "Meso-Cenozoic tectonic events recorded by low temperature thennochronology in Xining Basin and Eastern Qilian Mountains." (Advisor Chunhui Song).

Chen, Wenqi. MS, Chinese Academy of Sciences. "A study on the fission track chronology of Paleogene detrital apatite in the Nangqian Basin, Eastern Tibetan Plateau." (Advisor Chunhui Song).

Dalton, Hayden. PhD, 2022, University of Melbourne.

"Temporal and geochemical evolution ofkimberlite magmatism in Finland." (Advisors David Phillips, Andrea Guiliani, Janet Hergt).

DeSilva, Cam. MS, University of Wisconsin-Madison. "A Magma Mixing Case Study: Playas Blancas-Negras, Antillanca Volcanic Group, Chile." (Advisor Brad Singer).

Fioraso, Marco. PhD, University of Siena. "Erosion Antarctica: looking into erosional processes and uplifting of the Transantarctic Mountains (Southern Victoria Land) through low-temperature thennochronology and numerical modeling of landscape evolution." (Co-advisor Valerio Olivetti).

Genge, Marie Catherine. PhD, University of Padova.

"Structural evolution of the Central Patagonia: a source-to-sink approach." (Advisor Massimiliano Zattin).

Gommery, Sarah. PhD student, LSCE. "Tectono-magmatic study of Central Afar since 4Ma, remote sensing and 40Ar/39Ar approach."

WORDS Grund, Marc. PhD student, University oflnnsbruck.

"The Dinaric-Hellenic junction marked by the Shkoder-Peja Normal Fault in northern Albania and Kosovo." (Advisors Mark Handy, Lorenzo Gemignani, Hannah Pomella).

He, John. PhD student, University of Arizona. (Advisor Paul Kapp).

Jiao, Xioaqin. PhD, University of Padova. "Single-grain multi-technique dating of sediments: a new approach to study the uplift and exhwnation of the northeastern Tibetan plateau." (Advisor Massimiliano Zattin).

Klotz, Thomas. PhD student, University of Innsbruck. "Fine Constraints of the Continental Indentation Process:

High Resolution Thermo-tectonic Analysis of the Dolomites Indenter (Eastern Southern Alps)."

(Advisor Bernhard Fi.igenschuh).

Klug, Jake. PhD, University of Wisconsin-Madison.

"Continental arc magmatism in the Southern Andes:

insights from the petrology and geochronology of the Planchon-Peteroa volcanic complex, and Diamante Ignimbrite." (Advisor Brad Singer).

Labiche, France. PhD student, LSCE.

Lambard, Jean-Baptiste. MS, LSCE (2022). "40Ar/39Ar and ESR dating of the method ofCagayan valley (Luzon, Philippines)."

Lambard, Jean-Baptiste. PhD student, LSCE.

"Geomorphological evolution of the Cagayan region (Luzon, Philippines) during the Upper and Middle Pleistocene."

Li, Jiaoli. MS, 2022, Northwest University of Xi'an. "Multi-dating of the elastic minerals in Yijun Formation of Lower Cretaceous in the southern Ordos Basin and its geological significance." (Advisor Jianqiang Wang).

Li, Youjuan. Post-doc, University of Wisconsin-Madison.

(Advisor Brad Singer).

Mallery, Chris. PhD student, Purdue University Indianapolis.

(Advisor Kathy Licht).

Marschalek, Jim. PhD student, Imperial College of London.

(Advisor Tina Van de Flierdt).

Moreno Yaeger, Pablo. PhD, University of Wisconsin-Madison. "Magma storage conditions in the Southern Volcanic Zone (SVZ) and its evolution through ice loading and unloading." (Advisor Brad Singer).

Musial, Nicolas. MS, LSCE (2022). "Tephrochronological and climatostartigraphic study of the marine core DED87-08 (Tyrrhenian Sea) over the period 190-365ka."

Ojo, Oyewande. MS student, Oklahoma State University.

(Advisor Daniel Lao Davila).

Peng, Heng. PhD, Northwest University of Xi'an. "Tectono-thermal history of the southern Ordos Basin." (Co-advisor Massimiliano Zattin).

Samim, Saini. PhD student, University of Melbourne.

"Geochronology and Geochemistry ofNachukui Tuffs, Omo-Turkana Basin, Kenya." (Advisors David Phillips, Erin Matchan, Janet Hergt, Hayden Dalton).

Savelkouls, Ashley. PhD student, University of Melbourne.

"Constraining the volcanic - magmatic history of the Koobi Fora Forn1ation in the Omo - Turkana Basin using precise 40Ar/39Ar dating to improve the current stratigraphy." (Advisors David Phillips, Erin Matchan, Hayden Dalton).

Stevens, Sally. PhD, University of Wisconsin-Madison.

"Eruptive history and magmatic evolution of the Antillanca Volcanic Complex." (Advisor Brad Singer).

Swope, Fiona. Undergraduate, Colorado College. (Advisor Christine Siddoway).

Taylor, Jennifer. PhD student, University of Minnesota.

(Advisor Christian Teyssier).

Wzietek, Alexandra. MS student, University of Innsbruck.

"Geology along the Valsugana fault system at the transition of Trento platform to Belluno basin."

(Advisors Hannah Pomella, Thomas Klotz).

Yang, Chaoqun. PhD, China University ofGeosciences, Wuhan. "Provenances of Cenozoic sediments in the Jianghan Basin and implications for the formation of the Three Gorges." (Co-advisor Massimiliano Zattin).

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Oregon State University Radiation Center, 100 Radiation Center, Corvallis, OR 97331 www. radiation center. oregons ta te. ed u

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