ML24095A232

Encl 2 - Slides 2024-3-19 NAC-OPTIMUS-L Source Device Shielding NRC Pre Submittal Slides (Non-Proprietary)

ML24095A232
Person / Time
Site:	OPTIMUS-L
Issue date:	03/19/2024
From:	NAC International
To:	Office of Nuclear Material Safety and Safeguards
Shared Package
ML24095A229	List: ML24095A231 ML24095A232
References
EPID L-2024-LLA-0019
Download: ML24095A232 (1)

Text

NACOPTIMUSL IrradiatorContentsandSources PresubmittalMeeting Date:March19,2024(OpenSession)

Slide1

Agenda

• Introductions

• Overview

• StructuralEvaluation

• ThermalEvaluation

• ShieldingEvaluation

• Questions Slide2 DylanWard-ProjectManager HolgerPfeifer-Director,Engineering MarcGriswold-Manager,AppliedMechanics MikeYaksh-ChiefEngineer HeathBaldner-DirectorLicensing Others-asneeded

Overview

• NACOPTIMUSLCurrentlyLicensedtoTransport

• Byproduct,source,specialnuclearmaterial,nonfissileorfissile excepted,asspecialformornonspecialformintheformofprocess solidsorresins,eitherdewatered,solid,orsolidifiedwaste.

• Dewatered,solid,orsolidifiedtransuraniccontainingwastes(TRU),

fissile,nonfissile,orfissileexcepted;

• Neutronactivatedmetalsormetaloxidesinsolidform,in secondarycontainers;

• Miscellaneousradioactivesolidwastematerials,includingspecial formmaterial;

• Irradiatedfuelwaste(IFW)consistingoflowenricheduranium (LEU)fuelandactivatedmetalstructuralcomponents(e.g.,

cladding,liners,baskets,etc.).

• TRISOCompacts 3

Overview

• NACOPTIMUSLRequestedContent

• ThisCoCRevisionrequestwillconsistof theengineeringanalysesrequiredtoinclude Irradiatordevicesasauthorizedcontent.

• Thetermirradiatormayincludeanyshieldeddevice thatcontainsaspecialformornormalformsealed sourcecapsule.

• Contentsto includevariousirradiators.

• Irradiatordevicesareleadfilledsteelweldments containingvariousgammasources,usually Cesium137orCobalt60 4

OverviewContinued

• Credittakenfortheleadshielding encapsulatingsealedsources.

• TheNACOPTIMUSCCVwillbeconsidered containmentforthesources.

• Theinternalinsertwillposition theIrradiatorsand protectstheCCV.

• Willbemodularastoaccommodateawiderange ofdevicesutilizingvariousinsertcomponents.

Slide5

StructuralEvaluation

• Maximumcontentsweightwillbelessthan3,500lb.

• IrradiatordevicescenteredinOPTIMUSLCCV.

• LSDYNAutilizedforNCTandHACFreeDrops.

Slide6

ThermalEvaluation

• IrradiatordeviceshaveheatloadbelowtheOPTIMUSLCCV limitforairfillgas.

Slide7

Shielding&CriticalityEvaluation

• Gammasourcesmodeled,noneutronsources

• MaintainregulatorydoseratelimitsduringHACandNCTconditions

• Irradiatordeviceshavefabricator/manufacturerimposedsurfacedose ratelimit.

• Nofissilematerial Slide8

NACOPTIMUSLIrradiatorContentsandSources Schedule

• SubmittalDate

• June2024

• CoCNeedDate

• March2025 Slide9

• Questions?

Slide10