ML19030B838
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| Site: | 07109316 |
| Issue date: | 01/25/2019 |
| From: | Alpha-Omega Services |
| To: | Office of Nuclear Material Safety and Safeguards |
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Text
AOSFM9054,RevH5,H6,andH7Changes-January25,2019 1
AOSFM9054,RevH5,H6,andH7Updates-Trackingpagenumber,headinglevel,paragraphnumber,linenumber;whatitwas,whatitis,andjustification(ifneeded)
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Cover Rev.H4,November28,2017 Rev.H7,January25,2019 (Notetoreviewer:Automaticallyappliedtoallfooters.Duetosoftware constraints,SARpagefootersmight/mightnotincludearevisionbarindicatingthis change.Additionally,therevisionbarmightspanbothlinesofthefooter.)
H5 H6 iii RevisionHistory
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<H6:shortenedTableandAppendixentriestojusttheirnumbers>
Chapter1-RevisedSubsection1.2.2(addeddiscussionrelatingtoisotope mixtures);revisedTable12(deletedfootnoteeandrenumberedremaining footnotes);addedTable12b;updatedTable15drawingrevisions Chapter2-ReplacedParagraph2.5.3.1.4;addedAppendix2.12.16 Chapter5-AddedAppendix5.5.5,Appendix5.5.6,andAppendix5.5.7 Chapter7-AddedAppendix7.5.1 Appliedmiscellaneouscorrections(tableofchangesincludedwithcoverpage ofthesubmittal)
H6 iii RevisionHistory
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UpdateinresponsetoNRCRAI(10092018)addressingchangesand clarificationsinSARChapters1,5,7,and8 Appliedmiscellaneouscorrections(tableofchangesincludedwithcoverpage ofthesubmittal)
H7 iii RevisionHistory
<addedRevisionH7,January25,2019entry>
UpdatedinresponsetoNRCquestions(emaildated01152019)addressing changesandclarificationsinSARChapters1,2,5,and7 Tableofchangesincludedwiththecoverpageofthesubmittal
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Chapter1 H5 19 1.2.1.4 1
3 RefertoTable12andTable12aforthe
<addedreferencetonewTable12b>
RefertoTable12,Table12a,andTable12bforthe H6 H7 110 1.2.2 1,2,and abulletset (was1)
Multiple Table12andTable12aprovidealistoftheisotopesauthorizedfor usewiththeAOSTransportPackagingSystem.Additionally,Table12 andTable12ademonstratetheuseofcuriecontenttomeetthe radioactiveandthermalmaximumlimitsspecifiedinTable13,foreach transportpackagemodel.Furthermore,theshieldingrequirements specifiedinTable12andTable12aapply,whereapplicable.The activitylimitspresentedinTable12ashouldbeinterpretedasfollows:
forashipmentwithatotalIr194impurityuptothespecifiedactivity, thecorrespondingIr192activitylimitislisted(forexample,forModel AOS050A,anyshipmentwithatotalIr194activityupto10Ci,theIr 192activitylimitis1,117Ci).
<H6:expandedtosupportisotopemixturesandexclusiveuse>
<H7:2ndparagraph,changed1,083Cito1,009Ci>
Table12andTable12aprovidealistoftheisotopesthatareauthorizedforuse withtheAOSTransportPackagingSystem.Table12aprovidespredetermined mixturesoftheIr192andIr194isotopesthatareacceptablewithineachshipping caskmodel.Otherisotopemixtures,includingmixturesofIr192andIr194thatdo notfalldirectlyunderonethepredeterminedmixturesinTable12a,are permittedwithintheshippingcaskcontentswhenexternaldoserateanddecay heatlimitcomplianceisdemonstratedpertheguidancespecifiedinAppendix 7.5.1,DoseRateandDecayHeatLimitCompliance.Isotopesthatemitonlylow energygammasand/orbetas(thatis,allemissions,includingthosefromtheir progeny,arelessthan0.3MeV)arepermittedfortransportintheModelAOS 100AandAOS100ASshippingcasks.Toclarify,thisrequirementappliestothefull betaspectrum,nottheaveragebetaenergy(thatis,Emax,0.3).Isotopesthat meetthiscriteria:
Donotneedtobeconsideredfordoseratecalculations Needtobeaccountedforonlywhencalculatingtheshippingcaskcontents totaldecayheat Table12andTable12ademonstratetheuseofcuriecontenttomeetthe radioactiveandthermalmaximumlimitsspecifiedinTable13,forindividual isotopeswithineachtransportpackagemodel.Furthermore,theshielding requirementsspecifiedinTable12andTable12aapply,whereapplicable.The activitylimitspresentedinTable12ashouldbeinterpretedasfollows:fora shipmentwithatotalIr194impurityuptothespecifiedactivity,the correspondingIr192activitylimitislisted(forexample,forModelAOS050A, anyshipmentwithatotalIr194activityupto10Ci,theIr192activitylimitis 1,009Ci).ForModelsAOS100AandAOS100AS,iftheisotopeactivitiesexceed thevalueslistedinTable12,theactivitylimitsforeachisotopespecifiedinTable 12bmaybeused,providedthattheshippingcaskisshippedasexclusiveuse.
H5 110 1.2.2 5(was4) 2 fornonexclusivetransport,exceptforCo60Cquantities.(Referto Table12.)
fornonexclusivetransport.(RefertoTable12andTable12a.)
H5 110 1.2.2 6(was5) 2
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H5 110 1.2.2 2(was1) 8(was7)
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ForModelsAOS100AandAOS100AS,whenshippedasexclusiveuse,the activitylimitsforeachisotopearespecifiedinTable12b.
H6 110a(new)
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5 3
1 Table12andTable12a.
decayheat,listedinTable12andTable12a,iscalculated
<newpagecreatedforpage110overflow,plusedit>
Table12,Table12a,andTable12b.
decayheats,listedinTable12,Table12a,andTable12b,arecalculated
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H6 111 111a Table12 Table12a All All
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H7 111 Table12 Ho166row Co60Crow Footnotee
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H6 111b(new)
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H5 117 Table15 Assemblyrow CavitySpacer Platesrow
ListedDrawingRevisions,byModel#Column:
Assembly:IIIII CavitySpacerPlates:--A-A
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Assembly:JJKKK CavitySpacerPlates:--B-B H6 117 Table15 Caskrow All ListedDrawingRevisions,byModel#Column:
Cask:HHJJJ
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Cask:IILLL Chapter2 H5 226 Figure212 Caption CenterofGravity-ModelAOS1002
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CenterofGravity-ModelAOS100 H6 244 Figure213 LowerRight Callout KENSERT KEENSERT H5 255 2.5.3.1.4 All All
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H5 279 2.6.7
<addedNotetobeginningofcontent>
Note:Thefollowinganalysisdoesnotconsidertheenergythattheshippingcage absorbsduringafreedrop.FortheFreeDropShippingCageanalysis,referto Appendix2.12.16.
H5 H7 2155 2.12 16thbullet(new)
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- ShippingCageLSDYNAImpactAnalysis-ModelAOS100 H6 2942v Table2357 Footnoteb All
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H7 2942aq-2942bh 2942ap 2.12.16
2.12.15(lastpg)
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2.12.16ShippingCageLSDYNAImpactAnalysis-ModelAOS100.
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[2.41]
<H5:addednewreferencesinsupportofnewAppendix2.12.16>
<H7:omittedreferencesinsupportofnewAppendix2.12.16;omittednowempty page2945>
[2.35]U.S.NuclearRegulatoryCommission(NRC),Title10,CodeofFederal Regulations,Part71.71(10CFR71.71),PackagingandTransportationof RadioactiveMaterial-Normalconditionsoftransport,2015.
[2.36]LivermoreSoftwareTechnologyCorporation(LSTC),LSPrePost,Version4.3, 2016.
[2.37]Autodesk,AutodeskInventorProfessional,2016.
[2.38]ANSYSInc.,ANSYSWorkbench,Release15.0,2015.
[2.39]ANSYSInc.,ANSYSMechanical,Release15.0,2015.
[2.40]LSTC,LSDYNAKeywordUsersManual,VolumeI, Version971,2007.
[2.41]LSTC,LSDYNAKeywordUsersManual,VolumeII,Version971,2012.
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Chapter3 H6 32 3.1.2 1
All Table12,ActivityLimits(AllIsotopesExceptIr192andIr194)-All Models,andTable12a,Ir192andIr194ActivityLimits-AllModels, providethemaximumdecayheatandradioactivityfortheAOSTransport PackagingSystemcontents.ThisincludesDecayHeat(Ci/W)valuesfor eachradioisotopelisted,showingthatthedecayheatisconsistentwith themaximumquantityofradioactivitycontents.Asummaryofthe DecayHeatvaluesisshowninTable32.
<updatedTable12and12acaptions,addedTable12bandAppendix5.5.5 reference,andcorrectedUOM>
Table12,10CFR71.47(a)ActivityLimits(AllIsotopesExceptIr192andIr194)-
AllModels,Table12a,10CFR71.47(a)Ir192andIr194ActivityLimits-All Models,andTable12b,10CFR71.47(b)ActivityLimits-ModelsAOS100Aand AOS100AS,providethemaximumdecayheatandradioactivityfortheAOS TransportPackagingSystemcontents.ThisincludesDecayHeat(W/Ci)valuesfor eachradioisotopelisted,showingthatthedecayheatisconsistentwiththe maximumquantityofradioactivitycontents.AsummaryoftheDecayHeatvalues isshowninTable32.Themethodthatisusedforcalculatingthedecayheat fortheisotopemixtureinModelsAOS100AandAOS100ASispresentedin Appendix5.5.5,ShipmentsofMultipleIsotopesunder10CFR71.47(a).
Chapter4-Nochanges
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Chapter5 H6 55 Table54 Footnote a
surface.
surface,unlessindicatedotherwise.(RefertoAppendix5.5.8.)
H6 55 Table55 GammaRadiation andTotal Col2 370.27370.27 472.93472.93 H6 56 5.2 1
All Table56liststheactivationproductstobeloadedintheAOStransport package,foreachtransportpackagemodel.Foranysingleshipment, onlyoneisotopemaybeloadedintothecask.Theexceptionstothisrule arethatIr194impuritiesmaybepresentinshipmentsofIr192,in quantitiesasdesignatedinTable12a,Ir192andIr194ActivityLimits-AllModels,andNb95maybeloadedwithZr95,butonlyasoutlinedin Subsection5.2.1.
<replacedentireparagraph;includedaddingexceptionforshipping multipleisotopes>
Table56liststheactivationproductstobeloadedintheAOStransportpackage, foreachtransportpackagemodel.ForModelsAOS100AandAOS100AS,in additiontotheisotopesspecificallylistedinTable56,lowenergygammaorbeta emittersthatemitonlygammasorbetas,respectively,atenergies 0.3MeV(includingemissionsfromprogeny)arealsopermissible.Singleisotope activitylimitsforallshippingcaskvariantsarelistedinTable12,ActivityLimits (AllIsotopesExceptIr192andIr194)-AllModels,whenmeeting10CFR 71.47(a)limits,andforModelsAOS100AandAOS100ASinTable12b,10CFR 71.47(b)ActivityLimits-ModelsAOS100AandAOS100AS,whenmeeting10 CFR71.47(b)limits.Ir194impuritiesmaybepresentinIr192shipments,in quantitiesasdesignatedinTable12a,10CFR71.47(a)Ir192and Ir194ActivityLimits-AllModels.ContentswithZr95areconsideredtoalways includeitsdaughter,asspecifiedinSubsection5.2.1.Shipmentsofmultiple isotopesarepermittedinallshippingcaskswhenmeeting10CFR71.47(a)limits, asspecifiedinAppendix5.5.5,andinModelsAOS100AandAOS100ASwhen meeting10CFR71.47(b)limits,asspecifiedinAppendix5.5.7.
H6 56 5.2 2
2 Chargedparticles,suchasalphaandbetaparticles, arenot Thechargedparticles,suchasbetaparticles,thatareemittedbytheisotopes listedinTable56arenot H7 56 Table56 Ho166row
<omittedrow>
H6 56 5.2.1 2
<appendednewsentence>
Lowenergygammaand/orbetaemitters(allemissions,includingthosefrom theirprogeny,are0.3MeV)thatareacceptablefortransportinModelsAOS 100AandAOS100ASareanalyzedseparatelyinAppendix5.5.6.
H6 57 5.2.1 1
1 rateanalysisisperformed rateanalysesfortheisotopeslistedinTable56areperformed H6 57 5.2.1 2
23
<updatedtonewTable12caption,andaddedreferencetonewTable12b>
H6 512 5.3.1.4 1
<appendednewcontenttoendofparagraph>
Itcanbenotedfromthesefiguresthatthetallylocationsusedneglectcertain transportpackagingandimpactlimiterfeatures.Specifically,forthetransport packagesurfaceand1mTIlocations,thegapbetweentheupperandlower impactlimitersinModelsAOS050A,AOS100A,AOS100AS,andAOS100B,and therecessedregionattheaxialendsoftheimpactlimitersineveryshippingcask model.Becausethetransportpackagesurfaceisdefinedasallexposedshipping caskandimpactlimitersurfaces,adetailedanalysisofthesetallylocationsis addressedinAppendix5.5.8.
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2 transport.The transport,exceptasanalyzedinAppendix5.5.8.The H7 514 5.3.1.4 3
All Itisassumedthatthenotchattheendoftheimpactlimiterisnot accessibleduringNormalconditionsoftransport.Thisassumptionis basedonthefactthattheshippingcageontopandpalletonbottom willbepushedagainstthenotchontheimpactlimiterinthecaseofan EndDrop.
<omittedparagraph>
H6 520 5.4.4 1stbullet 3rdbullet 1
1 theimpactlimitersexternalsurface theshippingcageto thetransportpackagesurface thetransportpackagesurfaceto H6 521 5.4.4 1
All Fortheactivitylimitsofallindividualisotopes,refertoTable12, ActivityLimits(AllIsotopesExceptIr192andIr194)-AllModels.For theactivitylimitsofIr192sourceswithIr194impurities,refertoTable 12a,Ir192andIr194ActivityLimits-AllModels.
FortheactivitylimitsofallindividualisotopesotherthanIr192andIr194,refer toTable12,10CFR71.47(a)ActivityLimits(AllIsotopesExceptIr192andIr194)
-AllModels.FortheactivitylimitsofIr192sourceswithIr194impurities,refer toTable12a,10CFR71.47(a)Ir192andIr194ActivityLimits-AllModels.
H6 521 5.4.4 2
2 limiterfor limiterorshippingcasksurface,for H7 521 522 529 530 Table513 Table514 Tables521,522 Table523 Ho166row
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H6 522-24 526-27 Tables514-16 Tables518-20 All All
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H7 523 Table515 Co60Crow Footnotec
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<H6:5thand7thbullets:updatedtorevisedAppendix5.5.5and5.5.7headings; addednew8thbulletfornewAppendix5.5.8>
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Thisappendixpresentsthefollowinginformation:
AOSCaskIsotopicHeatLoadCalculations IsotopeValuesforCalculations MCNP6InputandOutputFilesforDoseCalculations Cobalt60CVolumeSourceCalculationStudy ShipmentsofMultipleIsotopesunder10CFR71.47(a)
IsotopesInsignificanttoExternalDoseRates 10CFR71.47(b)ExclusiveUseActivityLimitsforModelsAOS100A andAOS100AS EvaluationofDoseRateTallyLocations
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All Table522summarizesthefinalheatloadvaluesapplicabletothe isotopesanalyzedinthischapter.Thesevalues,alongwiththerespective caskdecayheatlimitsreportedinTable12,ActivityLimits(AllIsotopes ExceptIr192andIr194)-AllModels,andTable12a,Ir192andIr 194ActivityLimits-AllModels,areusedtocalculateactivitylimits basedonheatloads.TheheatloadpresentedinTable522foreach isotopeiscalculatedasshowninEquation58.
<H6:revisedparagraph>
<H7:addedTable12bcrossreference>
Table522summarizesthefinalheatloadvaluesapplicabletotheisotopes analyzedinthischapter.Thesevalues,alongwiththerespectivecaskdecay heatlimitsreportedinTable12,10CFR71.47(a)ActivityLimits(AllIsotopes ExceptIr192andIr194)-AllModels,Table12a,10CFR71.47(a)Ir192andIr 194ActivityLimits-AllModels,andTable12b,10CFR71.47(b)ActivityLimits-ModelAOS100AandAOS100AS,areusedtocalculateactivitylimitsbasedon heatloads.TheheatloadpresentedinTable522foreachisotopeiscalculated asshowninEquation58.RefertoAppendix5.5.5fortheheatloadcalculations thataretobeusedforshippingmultipleisotopesinModelsAOS100Aand AOS100AS.
H7 537 Table530 Ho166 All
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H7 541 5.5.4 Heading 1
Cobalt60CVolumeSourceCalculation Cobalt60CVolumeSourceCalculationStudy H7 541 5.5.4 1
12 FortheModelAOS100A/AOS100AScasks,theCo60Cconfiguration considersavolumesourceforthedoseratecalculations.The ThisappendixprovidesastudythatconsidersavolumesourceforCo60Cinthe ModelAOS100A/AOS100ASshippingcasksforaminimumactivityof19,000Ci.
Theresultsofthisstudyareusedasthebasisforthevolumesourcegeometryfor theCo60CdoseratecalculationsinAppendix5.5.7.The H7 542 5.5.4 1
34 activitylimit,thedoserateresultsfromthiscaseareusedfortheCo 60CisotopefortheModelAOS100A/AOS100ASshippingcasks.
activitylimit,thisisconsideredtobetheboundinggeometryfortheCo60C isotopefortheModelAOS100A/AOS100ASshippingcasks.
H5 H6 544a-544n Apx5.5.5 Apx5.5.6 Apx5.5.7
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5.5.5ShipmentsofMultipleIsotopes-ModelsAOS100AandAOS100AS 5.5.6IsotopesInsignificanttoExternalDoseRates 5.5.7ExclusiveUseActivityLimits-ModelsAOS100A andAOS100AS H6 544a 5.5.5 Heading 12 ShipmentsofMultipleIsotopes-ModelsAOS100AandAOS100AS ShipmentsofMultipleIsotopesunder10CFR71.47(a)
H6 544a 5.5.5 1
5 theModelAOS100400Wdecayheatlimit.
thedecayheatlimitoftherespectiveshippingcaskmodel(forexample,400W fortheModelAOS100).
H6 544a Table534 Caption DoseRateAcceptanceCriteria-ModelsAOS100AandAOS100AS
<renamedtableandaddednewfootnotea>
10CFR71.47(a)aDoseRateAcceptanceCriteriaforMultipleIsotopes a.Reference[5.1].
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All ForModelsAOS100AandAOS100AS,thetotalexternaldoseratesat eachregulatorylocationandtotaldecayheatarecalculatedusingeach isotopesactivitywithintheshippingcaskcontentsandtheirrespective referencevaluesinTable535.Notethatthismethodformixingisotopes withinasinglecontentisapplicabletoallAOSshippingcaskvariants, usingthedoserateinformationprovidedinSubsection5.4.4anddecay heatvaluesinTable522.ForModelsAOS100AandAOS100AS,an isotopethatdoesnotappearinTable535orfallwithinoneofthe categoriesaddressedinAppendix5.5.6(thatis,lowenergygamma and/orbetaemitters)isnotacceptableforshipment.Foranymixtureof isotopesinwhichtheCo60BorCo60Cdoserate/curievaluesare used,therequiredaxialshieldingandcavityspacerplatecomponents shallbeused.ForisotopesotherthanCo60(thatis,thoseforwhichthe axialshieldingandcavityspacerplateswerenotanalyzed),theadded useofthesecomponentswilldecreaseexternaldoserates,thereby providingadditionalmargintothevalueslistedinTable535.
<H6:revisedparagraph>
<H7:addedandtheirprogenytoline8>
ForeachoftheAOSshippingcaskmodels,thetotalexternaldoseratesateach regulatorylocationandtotaldecayheatarecalculatedusingeachisotopesactivity withintheshippingcaskcontentsandtheirrespectivereferencevalues.These referencevaluesforeachoftheAOSshippingcasksarelistedTable535through Table535c.ForModelsAOS100AandAOS100AS,anisotopethatdoesnot appearinTable535orfallwithinoneofthecategoriesaddressedin Appendix5.5.6(thatis,lowenergygammaand/orbetaemitters)isnotacceptable forshipment.ForisotopesthatfallwithinthecriteriaspecifiedinAppendix5.5.6, thatareinsignificanttoexternaldoseratesbutmustbeaccountedforindecay heatcalculations,thedecayheatforeachofthoseisotopesandtheirprogenyshall becalculatedusingEquation58andtheisotopeQvaluefromtheSCALE6.1 ORIGEN(Reference[5.2])decaylibraryorigen.rev03.decay.data.Theradioactive contentsoftheotherAOSshippingcaskmodelsarelimitedtotheisotopeslistedin theirrespectivetables-Table535a,Table535b,andTable535cforModels AOS025A,AOS050A,andAOS100B,respectively.Foranymixtureofisotopesin whichtheCo60BorCo60Cdoserate/curievaluesareused,therequiredaxial shieldingandcavityspacerplatecomponentsshallbeused.Forisotopesother thanCo60(thatis,thoseforwhichtheaxialshieldingandcavityspacerplates werenotanalyzed),theaddeduseofthesecomponentswilldecreaseexternal doserates,therebyprovidingadditionalmargintothevalueslistedinTable535.
ForanymixtureswithintheModelAOS050AinwhichtheIr192orIr194dose rate/curievaluesareused,therequiredaxialshieldingplatesshallbeused.
H6 544b Table535
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H6 H7 544b1-544b2 Table535a, 535b,and 535c(new)
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<H7:omittedHo166rowfromTables535aand535b>
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All ForallAOSshippingcaskvariants,betaparticlesandtheirsecondary radiation(thatis,bremsstrahlungphotons)cannotsufficientlypenetrate anAOSshippingcasksshieldingtocontributetoexternaldoserates.
Notethatalthoughthetermbetaparticlesspecificallyrefersto electronsthatareemittedthroughbetadecay,inthiscontext,beta particlesreferstoanyelectronthatisemittedfromanisotoperegardless ofdecaymode(thatis,includingelectronsemittedbywayofother decaymodes,suchasinternalconversionoftheaugereffect).Thus, isotopesthatemitonlybetaparticlescanbetransportedwithinanyof theAOSshippingcasks,inanyconfiguration,withoutaccountingforany contributiontoexternaldoserates.Somecommonexamplesofpure betaemittersareH3,C14,P32,andNi63.
ForallAOSshippingcaskvariants,betaparticlescannotsufficientlypenetratean AOSshippingcasksshieldingtocontributetoexternaldoserates.Theonly concernforexternaldoseratesisfromthesecondaryradiationofthebeta particles(i.e.,bremsstrahlung).However,thebremsstrahlunggammaenergy cannotexceedthesourceelectronenergy.Thus,fortheModelAOS100Aand AOS100ASvariants,allbetaemissionsfortheselowenergybetaemittersand theirprogenymustbelessthan0.3MeVbecauseithasalreadybeendetermined that0.3MeVgammaswillnotsignificantlycontributetoexternaldoserates.For theModelAOS025A,AOS050A,andAOS100Bvariants,lowenergybetaemitters arecurrentlynotacceptableforshipmentbecausetheyremainunanalyzed.Note thatalthoughthetermbetaparticlesspecificallyreferstoelectronsthatare emittedthroughbetadecay,inthiscontext,betaparticlesreferstoanyelectron thatisemittedfromanisotoperegardlessofdecaymode(thatis,including electronsemittedbywayofotherdecaymodes,suchasinternalconversionofthe augereffect).SomecommonexamplesoflowenergybetaemittersareH3,C14, andNi63.
H6 H7 544e 5.5.6 1
13 Asdeterminedearlierinthisappendix,lowenergygammaemitters (thatis,allgammasthatarelessthan0.3MeV)andpurebetaemitters donotneedtobeaccountedforindoseratecalculations.However,the decayheatfromtheseisotopesmust
<H6:revisedparagraph>
<H7:addedandtheirprogenytoline4>
Asdeterminedearlierinthisappendix,lowenergygammaandbetaemitters (thatis,allemittedgammasandbetasthatarelessthan0.3MeV)donotneedto beaccountedforintheModelAOS100AandAOS100ASdoseratecalculations.
Toclarify,thisrequirementappliestothefullbetaspectrumnottheaveragebeta energy(i.e.Emax,0.3However,thedecayheatfromtheseisotopesandtheir progenymust H7 544e 5.5.6 1
15 definedinAppendix5.5.5.
definedinAppendix5.5.5andAppendix5.5.7.
H6 544e Table537
<replacedentiretable>
H6 544f 5.5.7 Heading 1
ExclusiveUseActivityLimits-ModelsAOS100AandAOS100AS 10CFR71.47(b)ExclusiveUseActivityLimitsforModelsAOS100Aand AOS100AS H6 544f 5.5.7 1
78 exclusiveuse.10CFR71.47(a)requirementsareapplicabletoboth exclusiveandnonexclusiveuseshipments.Forsimplicity exclusiveuse.Forsimplicity H7 544f Table538 2
- NCTrow, DoseRate Location column ExternalSurface TransportPackageSurface H6 544g 5.5.7 3rdbullet 5thbullet 12 2
(sidetoside)and 321.92cm (sidetoside),atleast4ft.forwardfromthebackofthetrailer,and 609.6cm H6 544g 5.5.7 3
12 direction.The direction.Forreference,thearrangementofthetallycellsisillustratedin Figure59.The
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H7 544h 5.5.7 1
6 accurate.
accurate.ItshouldbenotedinTable539thatfortheCo60Cisotope,the ExternalSurfacelocationisconsideredtobethatoftheenclosuresurfacefora closedtransportvehicle,withtheshippingcagebeingtheenclosure.Assuch,use ofthedoserateattheradialdistanceofthedeformedimpactlimitersurfacefor theenclosuresurfacelocationisbounding.Basedonthetransportpackagesurface doseratefromTable546(1.868E02mrem/hr/Ci)andtheactivitylimitfrom Table539(25,806.4Ci),themaximumtransportpackagesurfacedoserateis 428mrem/hr,whichiswellbelowtheclosedtransportlimitof1,000mrem/hr.
However,thisalsomeansthatthe10CFR71.47(b)(1)(i)through(iii)(Reference
[5.1])requirementsapplytoCo60CExclusiveUseshipmentsaswell.
H6 544h Table539 Co60Crow Hf181row Footnotes Cols2and7 Col7 c
3.947E0325,806.5 92,378.8 only)and 5.452E0325,806.4 92,378.7 only),Table544(Co60C),and H7 544h Table539 Co60Brow Co60Crow Footnotes Col1 Col1 d,e,f(new)
Co60B Co60C
<addedfootnotesd,e,andf,andcrossreferencestothem>
Co60Bd Co60Cef d.Useoftungstenalloyaxialshieldingplates183C8491isrequired.
e.Useoftungstenalloyaxialshieldingplates183C8491andstainlesssteel-or-aluminumcavityspacerplates183C8518isrequired.
f.ForCo60Cquantities,themaximumallowablespecificactivityis350Ci/g (thatis,nomorethan350CiofCo60inagramofCobalt).
H6 544j Table540 Caption Co60B,Crows Footnotes 1
Footnotes c,d(new)
Heat-ModelAOS100A Co60BCo60C Heat-ModelsAOS100AandAOS100AS Co60BcCo60Cd c.Useoftungstenalloyaxialshieldingplates183C8491isrequired.
d.Useoftungstenalloyaxialshieldingplates183C8491andstainlesssteel-or-aluminumcavityspacerplates183C8518isrequired.
H6 544k 5.5.7 1
15 usebyfollowingthemethoddefinedinAppendix5.5.5.Usingthe doserateequationsfortheNCTexternalsurfacelocation,HAC1mfrom shippingcasksurfacelocation,andtotaldecayheatdefinedinAppendix 5.5.5,andtheequationsfortheNCT2mfromtrailersurfaceanddriver cabdoseratelocationsprovidedbelow,the usewiththefollowingmethod.UsingthedoserateequationsfortheNCT externaltransportsurface,NCT2mfromtrailersurface,NCTdrivercab,and HAC1mlocationsprovidedinTable540a,the H7 544k 5.5.7 1
8 Appendix5.5.6.For Appendix5.5.6.Notethatforlowenergygammaandbetaemitters,thedecay heatfromtheseisotopesandtheirprogenymustbeaccountedforwhen calculatingtheshippingcaskcontentstotaldecayheatoutput.For H6 544k 5.5.7 1stbullet-R2Cabi
<replacedchunkofcontent,includesnewTable540a>
H7 544k Table540a Column1 Footnote BodyRow1 b(new)
TransportPackageSurface(CageSurface)
<revisedtextandaddedfootnote>
ExternalSurface(TransportPackageorEnclosureSurface)b b.EnclosuresurfaceforCo60C.Transportpackagesurfaceforallothers.
H7 544k Table540a Column1 BodyRow2 SideofRear)
SideorRear)
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H6 544m Table541 Caption Footnotesc,d 1
All Values-ModelAOS100A c.Useofthesedoserate/curievaluesrequirestheuseofaxialshielding plates.
d.Useofthesedoserate/curievaluesrequirestheuseofaxialshielding platesandcavityspacerplates.
Values-ModelsAOS100AandAOS100AS c.Useoftungstenalloyaxialshieldingplates183C8491isrequired.
d.Useoftungstenalloyaxialshieldingplates183C8491andstainlesssteel-or-aluminumcavityspacerplates183C8518isrequired.
H7 544m Table541 Co60Crow Footnotes Col1 e,f Co60Cd
<addedfootnoteseandf,andcrossreferencestothem>
Co60Cdef e.ForshipmentsincludingCo60C,10CFR71.47(b)(1)(i)through(iii)
(Reference[5.1])requirementsapply.
f.ForCo60Cquantities,themaximumallowablespecificactivityis350Ci/g (thatis,nomorethan350CiofCo60inagramofCobalt).
H6 544m Figure59(new)
<addednewfigure>
H6 544p-544ap (new) 5.5.8(new)
<addednewappendix>
H7 544q 5.5.8 2
310 ModelAOS050A,AOS100AandAOS100AS,andAOS100Bside doserate/curievalues,respectively,inthegapbetweentheupperand lowerimpactlimiters.Foreach,the1mTIdoserateslistedarebasedon theHACdoseratescalculatedasdescribedinParagraph5.3.1.4.Because theHACandNCTdoseratesarecalculatedwiththesameMCNPmodel andallHAC1mdoseratesarefromtheshippingcasksurface (neglectingtheimpactlimiters),theside1mTIlocationfromthe exposedshippingcasksurfaceisthesameastheside1mHAClocation.
Table543,Table544,andTable545alsolistthetotaldoseratefor bothlocations(1mTIandtransportpackagesurface)basedonthedose rate/curievaluelistedandthemaximumallowableactivityforeach isotopeascalculatedinSubsection5.4.4.Becausethe1mTIdose rate/curievaluesarebasedonthecalculateddoseratesat1mfromthe transportpackagesurface,aslongas ModelAOS050A,AOS100AandAOS100AS,andAOS100Bsidedose rate/curievalues,respectively,inthegapbetweentheupperandlowerimpact limitersforthetransportpackagesurfaceand1mTIlocations,withbothapoint sourceinthetopcorneroftheshippingcaskcavityandasourceonthesidewall.
(RefertoFigure511andFigure512.)Foreachcase,the1mTIdoserateslisted arebasedontheHACdoseratesthatarecalculatedasdescribedinParagraph 5.3.1.4(thatis,1mfromtheshippingcasksurface).BecausetheHAC1mdose ratesarefromtheshippingcasksurface(neglectingtheimpactlimiters),thistally isrepresentativeoftheside1mTIlocationattheexposedshippingcasksurface.
Thus,forthislocation,aslongas H7 544r 5.5.8 4
6 valuescanbeused valuesareused H7 544t 544u 544v Table543 Table544 Table545 Cols34 12 CornerDoseRate/Ci SideDoseRate/Ci CornerSourceDoseRate/Ci SideSourceDoseRate/Ci H7 544t Table543 Ho166row
<omittedrow>
H7 544y 5.5.8 2
13 wouldresultinalargerpredicteddoserate wouldresultinasmallerpredicteddoserate H7 544ab 544ab 544ad 544ae Table549 Table550 Table551 Table552 Ho166column
<omittedcolumn>
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H7 544ag 5.5.8 1
5 TheCo60,Ho166,andIr194activitylimits TheCo60andIr194activitylimits H7 544ag Table553 Ho166row
<omittedrow>
H6 545 5.6 5.7(new)
<addednewreference>
[5.7]InternationalCommissiononRadiologicalProtection,NuclearDecayData forDosimetricCalculations,ICRPPublication107,2008.
Chapter6-Nochanges
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Chapter7 H6 75 7.1.1.1 Stepsc,d All c.Verifythattheradiationandcontaminationlevels areincompliancewithregulatoryrequirements-IAEATSR1,Paragraphs508and530through532,10CFR71.47and 71.87(i),49CFR173.441and173.443,and 10CFR20.1906(References[7.1],[7.2],[7.3],and[7.4],respectively).
d.Recordanyfinding(s),andnotifytheJobSupervisorfordispositionof thefinding(s).Findingsmustbeevaluatedagainst10CFR71.95[7.2],to determinewhethertheyrequireregulatorynotification,soproperaction canbetaken.TheJobSupervisoristhepersonresponsiblefordirect oversightofthepersonnelthatareperformingthework.
<omitted>
H6 H7 76 7.1.1.2 Stepsd,e StepdNote
<new>
<new>
<H6:insertednewstepsdande,existingstepandsubsequentsteps renumbered>
<H7:addednoteforstepd>
d.Verifythattheradiationandexternalcontaminationlevelsareincompliance withregulatoryrequirementsIAEATSR1,Paragraph508,10CFR71.87(i),49CFR 173.428,and10CFR20.1906(References[7.1],[7.2],[7.3],and[7.4],respectively).
Note:Thetransportpackagesbottomsurfaceisnotaccessibleuntilthetransport packageisremovedfromthepallet.Asaresult,whenmeasurementsarerequired, theradiationandexternalcontaminationlevelsonthetransportpackagesbottom surfaceareassessedaftertheshippingcaskisremovedinstepg.
e.Recordanyfinding(s),andnotifytheJobSupervisorfordispositionofthe finding(s).Findingsmustbeevaluatedagainst10CFR71.95[7.2],todetermine whethertheyrequireregulatorynotification,sothatproperactioncanbetaken.
TheJobSupervisorisresponsiblefordirectoversightofthepersonnelthatare performingthework.
H6 76 7.1.1.2 Stepf 3rdbullet,23 thecask,andplacethemintotemporarystorage.
theshippingcask,thenplacetheimpactlimitersintemporarystorage.
H5 76 7.1.2.1 Stepa 2-3 inSection7.1.
<FYI,contentmovedtopage76aaspartofH6>
inSection7.1andguidanceprovidedinAppendix7.5.1.
H6 76a(new) 7.1.2 7.1.2.1 Stepf 2
Repairorreplacedamagenoted,asrequired,thenreinspect.
<movedtonewpage76aandupdatedstepf>
Thepresenceofforeignmaterialordeepradialscratchesthatmayresultina failedPreShipmentLeakageRatetestshouldberepairedorreplaced,asrequired, andAOSistobenotifiedforwrittendisposition.
H6 76b(new)
Blank
<newblankpage,insertedforpage76pagination>
H6 77 7.1.2.2 Stepa All cavityspacerplateslistedinTable71areusedduringtheshipmentof radioisotopecapsules,eitherinNormalorSpecialForm,whenidentified inthePreShipmentEngineeringEvaluation(refertoSection7.1),as requiredforshipmenttomeetregulatoryrequirements.
cavityspacerplatesareusedasnecessary,pertherequirementslistedin Table71.
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H6 77 Table71 Comments All Shieldinglinerismandatoryforallcontents.(RefertoTable12, ActivityLimits(AllIsotopesExceptIr192andIr194)-AllModels.
Usewhenadditionalshieldingisrequired.(RefertoTable12a, Ir192andIr194ActivityLimits-AllModels.)
Usewhenadditionalshieldingisrequired.(RefertoTable12, ActivityLimits(AllIsotopesExceptIr192andIr194)-
AllModels.)
Shieldinglinerismandatoryforallcontents.(Refertothecurrentrevision oftheNRCCertificateofCompliance9316.)
UsedwhenshippingIr192andIr194isotopes.(Refertothecurrentrevision oftheNRCCertificateofCompliance9316.)
UsedwhenadditionalshieldingisrequiredforCo60.(Refertothecurrent revisionoftheNRCCertificateofCompliance9316.)
H6 77 7.1.2.3 Note 3
Ifthecasklidseal(elastomericormetallic)is Ifthemetalliccasklidsealis H6 77 7.1.2.3 Note 5
<appendnewsentencetoNote>
TheelastomericsealoptionisacceptableforuseonlywithSpecialFormcontents, inwhichthecaskcontentsprovidecontainmentfortheradioactivecontents.
H6 710 710a 7.1.3.3 TestsA1,A2 heading 12 Seals(Tests SealsforSpecialFormContents(Tests H6 710 710a 7.1.3.3 TestsA1,A2text 1
Toleaktestthecontainmentsystem:
Toperformapreshipmentverificationoftheelastomericlidseal:
H6 710 710a 7.1.3.3 TestsA1,A2 Note(1st) 1 portmustonlybeleaktestediftheyhave portneedtobeleaktestedonlyiftheportshave H6 710 7.1.3.3 TestA1 Note(2nd) 23 Theinternalvolumeofthetestapparatusupstream oftheisolationvalvemustbeknownandconsidered toachievetherequiredtestsensitivityforthetest holdtime.
<omitted>
H6 710 710a 7.1.3.3 TestA1,A2 Note(3rd) 1 Note:LeakTestcriteriaforleakratesmustmeettherequirementof Reference[7.8].
<omitted>
H6 710 710a 7.1.3.3 TestsA1,A2 Stepc 2
correspondingto1x103refcm3.
thatislessthanorequalto0.1psig.
H6 710a 7.1.3.3 TestA2 Note(2nd) 23 Theinternalvolumeofthetestapparatusdownstreamoftheisolation valvemustbeknownandconsidered toachievetherequiredtestsensitivityforthetest holdtime.
<omitted>
H6 710a 7.1.3.3 TestBheading 12 SealorOptionallyforElastomericCaskLidSeal(Tests SealforNormalorSpecialFormContents(Tests H6 H7 711 7.1.3.4 Stepb All Performaradiologicalsurveyofallcasksurfaces(refertoTable73),to demonstratecompliancewithapplicableshippingregulations.
<H6:revisedsteptext>
<H7:changed10CFR71.87reference>
Performradiologicalsurveystodemonstratecompliancewithtransportpackage surfacedoseraterequirements(refertoTable73),consistentwithIAEATSR1, Paragraph531,10CFR71.47and71.87(j),and49CFR173.441(References[7.1],
[7.2],and[7.3],respectively).
H6 711 Table73 All All
<replacedentiretable>
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H6 H7 711 7.1.3.4 Stepd(new)
<H6:newstep;subsequentstepsrenumbered>
<H7:clarifiedwheretocheckthecontaminationlevels>
Verifythatthecontaminationlevelsontheoutershippingcasksurfacesand impactlimiters(bothinnerandoutersurfaces)areincompliancewithregulatory requirementsIAEATSR1,Paragraph508,10CFR71.87(i),and49CFR173.443 (References[7.1],[7.2],and[7.3],respectively).
H6 711 7.1.3.4 Steph(nowi) 2
<appendnewsentence>
(Alternatively,refertostepk.)
H6 711 7.1.3.4 Stepi(moved
~toStepk)
All Installtheshippingcage.Iftheshippingcageincludestheoptional liftingbar,installtheliftingbarguardssothattheliftingbarcannotbe usedforliftingoftheentirepackageorfortiedown.
<omitted/movedtonewstepk,subsequentstepsrenumbered>
H6 711 7.1.3.4 Stepj 23 Paragraphs508and530through532,10CFR71.47and71.87(i),49 CFR173.441and173.433,and10CFR20.1906(References[7.1],[7.2],
[7.3],and[7.4],respectively).
Paragraphs530through532,10CFR71.47and71.87(j),and49CFR173.441 (References[7.1],[7.2],and[7.3],respectively).
H6 H7 712 7.1.3.4 Note(new)
<H6:addednote>
<H7:correctedtypo>
Note:Forthe1mTIdoserate,the1mdistanceisfromthetransportpackage surface(thatis,theshippingcageshippingcaskorimpactlimitersurface),notthe shippingcagesurface.
H6 712 7.1.3.4 Stepk(new)
Stepl(omitted)
<newstepk;omittedstepl;subsequentstepsrenumbered>
k.Installtheshippingcage.Iftheshippingcageincludestheoptionalliftingbar, installtheliftingbarguardssothattheliftingbarcannotbeusedforliftingofthe entirepackageorfortiedown.Ifthesecuritysealswerenotappliedinstepi, applytwo(2)securitysealsbetweentheshippingcageandpallet,onopposing sides.
H6 715 7.2 1
3 activities,asrequiredby10CFR71.89[7.2].
activities.Asrequiredby10CFR71.89[7.2],theconsignorshallsendtothe consignee,inadvanceoftheshipment,instructionsforsafelyopeningthe transportpackage.
H6 715 7.2 Iteme All ReviewtheActivityLimitslistedinTable12,ActivityLimits(All IsotopesExceptIr192andIr194)-AllModels,andTable12a,Ir192 andIr194ActivityLimits-AllModels.Thesevaluesrepresent maximumconditions.
ReviewtheActivityLimitslistedinthecurrentrevisionoftheNRCCertificateof Compliance9316.Thesevaluesrepresentmaximumconditions.Forshipping multipleisotopes,orisotopesthatemitonlylowenergygamma/betaemitters (thatis,allemissions,includingthosefromtheirprogeny,are0.3MeV),referto theguidanceprovidedinAppendix7.5.1.
H6 715 7.2 Itemf 1
listedinTable15 listedinthecurrentrevisionoftheNRCCertificateofCompliance9316and Table15 H6 715a(new) 7.2.1
<movedtonewpage715a>
H6 715a(new) 7.2.1 Stepa 34 Otherwise,removethesecurityseal,bycuttingthewires,thenproperly disposeofthem.
Otherwise,ifthesecuritysealsareontheshippingcage,removethesecurity sealsbycuttingthewires,thenproperlydisposeofthesecurityseals.Ifthe securitysealsareconnectedtotheimpactlimiters,removethesealsafterthe shippingcageisdetached.
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H6 715a(new) 7.2.1 Stepb All b.RepeatstepsathroughdinParagraph7.1.1.1,andstepsbthroughg inParagraph7.1.1.2,toremovethepackagefromthecarrier.
<replacedstepbwithnewsteps>
b.PositionthetransportvehicleintheReceivingInspectionarea.
c.Visuallyinspectthetransportpackagefordamageandproperlabelingand marking.Refertotheshippingpaperforshipmentcategoryandcomparethe markingandlabelsonthepackagetotherequirementofReference[7.3].
d.Positionthetransportvehicleinthejobstagingarea,fortransportpackage removal.Thisoperationcanbeaidedbytheuseofanoverheadcraneorforklift truck.
e.Positionthespreaderbarorforks,thenconnecttheappropriateslingsand shacklestoremovetheshippingcage.
f.Removetheshippingcageandtiedownhardware.
g.Verifythattheradiationandexternalcontaminationlevelsareincompliance withregulatoryrequirementsIAEATSR1,Paragraphs508and530through532, 10CFR71.47and71.87(i),49CFR173.441and173.443,and10CFR20.1906 (References[7.1],[7.2],[7.3],and[7.4],respectively).
h.Recordanyfinding(s),andnotifytheJobSupervisorfordispositionofthe finding(s).Findingsmustbeevaluatedagainst10CFR71.95[7.2],todetermine whethertheyrequireregulatorynotification,sothatproperactioncanbetaken.
TheJobSupervisorisresponsiblefordirectoversightofthepersonnelthatare performingthework.
i.Dependinguponsitespecificconstraints,dooneofthefollowing:
Removetheupperimpactlimiterfromthecask,thenplacetheimpactlimiter intotemporarystorage.
Installtrunnions.Priortotheinstallation,applyanantivibrationcompound onthetrunnionboltthreads.
Liftandremovetheentiretransportpackagefromthetransportvehicle,then setdownthepackageinanappropriatelocation.Next,removetheimpact limitersfromtheshippingcask,thenplacetheimpactlimitersintemporary storage.
j.Removethecask,usingtheappropriateriggingequipment.
H7 715a 7.2.1 StepgNote (new)
Note:Thetransportpackagesbottomsurfaceisnotaccessibleuntilthetransport packageisremovedfromthepallet.Asaresult,whenmeasurementsarerequired, theradiationandexternalcontaminationlevelsonthetransportpackagesbottom surfaceareassessedaftertheshippingcaskisremovedinstepj.
H6 715b(new)
Blank
<newblankpage,insertedforpage715pagination>
H7 717 7.3.4 1
2 Paragraph520,and49CFR173.428 Paragraph508,and49CFR173.443 H6 717 7.3.4 1
<appendnewsentence>
Performadoseratesurveytodemonstratecompliancewithregulatory requirementsIAEATSR1,Paragraph516,and49CFR173.428(References[7.1]
and[7.3],respectively).
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H5 H6 719 719a(new) 7.5 7.5.1(new)
Figure78(new) 7.5APPENDIX(NONE)
<H5:addednewappendixcontent,whichalsocreatedneedfornewpage719a>
<H6:bothpageswereupdated(asindicatedinsubsequententriesbelow);thus, pp719and719awillbeprintedasH6>
7.5APPENDIX 7.5.1DoseRateandDecayHeatLimitCompliance Figure78.ExampleDoseRate/DecayHeatCalculationSheet(ModelAOS100A NonExclusiveShipmentVersionShown)
H7 719 7.5.1 B,2ndbullet 1
Externaldoseratelimits Compliancewithexternaldoseratelimits H7 719 7.5.1 2ndbullet, lastparagraph 4
0.3).
0.3MeV).
H7 719 7.5.1 2ndbullet, lastparagraph 67 decayheatfromtheseisotopesshall decayheatfromtheseisotopesandtheirprogenyshall H5 719b(new) 7.6
<moved
7.6REFERENCES
tonewpage719b>
H6 719b 7.6
[7.9](new)
<addednewreference>
[7.9]OakRidgeNationalLaboratory,ORNL/TM2005/39Version6.1.SCALE:A ComprehensiveModelingandSimulationSuiteforNuclearSafetyAnalysisand Design,June,2011.
Chapter8 H6 814 8.1.6 1
23 Conductinga100%UTexaminationoftheshieldingmaterialsurface providesthenecessaryinspectionprocessforverifyingtheshielding attributeofthesematerials.Asanalternatemethod,prior Conductinga100%UTexamination,aswellasdimensionalanddensitychecksof theshieldingmaterial,providethenecessaryinspectionprocessesforverifyingthe shieldingattributeofthesematerials.Asanoptionaladditionaltest,prior H6 814 8.1.6 1
911 Thecriterionusedtoevaluatetheeffectofmaterialdefects(suchas voidsandcracks)isthatthedoseratecannotexceed1.5times(1.5x)the meanmeasurabledoserate.
Toverifythecaskshieldingmaterialintegrity,themeasureddoseratesshould closelymatchtheanticipatedvaluesfromshielding/doseratecalculations,and large,unanticipateddeviationsshouldnotexistbetweenmeasurements.
Chapter9-Nochanges