Information Notice 1985-01, Continuous Supervision of Irradiators

Continuous Supervision of Irradiators

ML031180752
Person / Time
Site:	Beaver Valley, Millstone, Hatch, Calvert Cliffs, Dresden, Davis Besse, Peach Bottom, Browns Ferry, Salem, Oconee, Mcguire, Nine Mile Point, Palisades, Palo Verde, Perry, Indian Point, Fermi, Kewaunee, Catawba, Harris, Wolf Creek, Saint Lucie, Point Beach, Oyster Creek, Watts Bar, Hope Creek, Grand Gulf, Cooper, Sequoyah, Byron, Pilgrim, Arkansas Nuclear, Braidwood, Susquehanna, Summer, Prairie Island, Columbia, Seabrook, Brunswick, Surry, Limerick, North Anna, Turkey Point, River Bend, Vermont Yankee, Crystal River, Haddam Neck, Ginna, Diablo Canyon, Callaway, Vogtle, Waterford, Duane Arnold, Farley, Robinson, Clinton, South Texas, San Onofre, Cook, Comanche Peak, Yankee Rowe, Maine Yankee, Quad Cities, Humboldt Bay, La Crosse, Big Rock Point, Rancho Seco, Zion, Midland, Bellefonte, Fort Calhoun, FitzPatrick, McGuire, LaSalle, 05000000, 05000262, Zimmer, Fort Saint Vrain, Shoreham, Satsop, Trojan, Atlantic Nuclear Power Plant, Skagit, Marble Hill, Crane
Issue date:	01/10/1985
From:	Grace J NRC/OE
To:
References
IN-85-001, NUDOCS 8501070401
Download: ML031180752 (3)

SSINS NO.: 6835 IN 85-01 UNITED STATES NUCLEAR REGULATORY

COMMISSION

OFFICE OF INSPECTION

AND ENFORCEMENT

WASHINGTON, D.C. 20555 January 10, 1985 IE INFORMATION

NOTICE NO. 85-01: CONTINUOUS

SUPERVISION

Addressees

All licensees

possessing

irradiators

that are not self-shielded

and contain more than 10,000 curies of radioactive

material.

Purpose

This information

notice is provided to alert recipients

of a potential

safety hazard and violation

of NRC license requirements

which can arise if licensees do not provide continuous

supervision

of large irradiator

operations. "Large" irradiators

are those which contain more than 10,000 curies of radioactive

material and which are not self-shielded.

Although proper supervision

and security also is important

for smaller irradiators, they are not the subject of this notice.It is expected that licensees

will review this notice for applicability

to their facilities, if appropriate, ti, preclude a similar problem occurring

at their facilities.

However, suggestions

contained

in this information

notice do not constitute

NRC requirements;

therefore, nc, specific action or written response is required.Description

of Circuostances:

Some large irradiators

operate 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> per day. Recently a case came to our attention

in which an irradiator

was left operating

overnight

totally unattended.

The irradiator

license specifically

required the physical presence of a fully trained supervisor

whenever the irradiator

was in use. This provision

of the license is consistent

with NRC policy and good safety practice that large irra-diators should be continuously

attended by a fully trained supervisor

except when the radioactive

sources are secured in their safe storage position.Compliance

with that requirement

assures that a qualified

individual

is immediately

available

to respond to emergencies

or other problems.

Note that 10 CFR 20.203(c)(6)

requires that large irradiators

must be equipped with entry control devices and alarms to make an individual

attempting

to enter the exposure area aware of the hazard and to alert at least one other individual

who is familiar with the irradiator

and prepared to render or summon assistance.

The NRC is closely reviewing

this matter during inspections

and licensing actions. Most irradiator

licenses explicitly

state that a trained person must be physically

present whenever the irradiator

is being used. The NRC regional office will contact separately

any irradiator

licensee whose license may not be clear with respect to physical presence.8501070401 IN 85-01 January 10, 1985 No specific action or written response is required by this information

notice.If you have any questions

about this matter, please contact the Material Licensing

Branch (301) 427-4203)

in NRC Headquarters

or the materials

licensing section of your NRC regional office.J. elson Grace, rector Division of Quality Assurance, Safeguards, and Inspection

Programs Office of Inspection

and Enforcement

Technical

Contacts:

J. Hickey, NMSS (301) 427-4203 J. fletzger, IE (301) 492-4947 Attachment:

List of Recently Issued IE Information

Notices

Attachment

IN 85-01 January 10, 1985 LIST OF RECENTLY ISSUED IE INFORMATION

NOTICES Information

Date of Notice No. Subject Issue Issued to 84-94 84-93 84-92 84-91 84-90 84-89 Reconcentration

Of Radio-nuclides Involving

Discharges

Into Sanitary Sewage Systems Permitted

Under 10 CFR 20.303 Potential

For Loss Of Water From The Refueling

Cavity Cracking of Flywheel on Cummins Fire Pump Diesel Engines Quality Control Problem Of Meteorological

Measurements

Problems Main Steam Line Break Effect On Environmental

Qualification

Of Equipment Stress Corrosion

Cracking In Nonsensitized

316 Stainless

Steel Standby Gas Treatment System Problems Piping Thermal Deflection

Induced By Stratified

Flow Isolation

Between Signals Of The Protection

System And Non-Safety-Related

Equipment 12/21/84 12/17/84 12/17/84 12/10/84 12/7/84 12/7/84 12/3/84 12/3/84 11/30/84 All NRC materials licensees

other than licensees

that use sealed sources only All power reactor facilities

holding an OL or CP All power reactor facilities

holding an OL or CP All power reactor facilities

holding an OL or CP All pressurized

water reactor and gas cooled power facilities

holding an OL or CP All boiling water reactor facilities

holding an OL or CP All boiling water reactor facilities

holding an OL or CP All power reactor facilities

holding an OL or CP All power reactor facilities

holding an OL or CP 84-88 84-87 84-86 OL = Operating

License CP = Construction

Permit