ML24011A292
| ML24011A292 | |
| Person / Time | |
|---|---|
| Site: | Hermes File:Kairos Power icon.png |
| Issue date: | 01/11/2024 |
| From: | Kairos Power |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML24011A290 | List: |
| References | |
| KP-NRC-2401-004 | |
| Download: ML24011A292 (1) | |
Text
PreliminarySafetyAnalysisReport
AuxiliarySystems
KairosPowerHermes2,Units1and2 939 Revision0 9.6 POSSESSIONANDUSEOFBYPRODUCT,SOURCE,ANDSPECIALNUCLEARMATERIAL Specialnuclearmaterial(SNM),source,andbyproductmaterialwillbepresentatthereactorfacility.
Theapplicablerequirementsin10CFRPart30,10CFRPart40,and10CFRPart70maybesatisfiedusing contentcontainedwithinthisConstructionPermitApplication.However,materiallicense(s)arenot beingrequestedatthistimeandnecessarylicenseapplication(s)oramendmentswillbesubmittedata futuredate.ThissectiondescribesthesystemsthatinteractwithSNM,source,orbyproductmaterial, andthedesignbasisforthosesystemstopreventuncontrolledreleaseofradioactivematerialsandto maintainpersonnelexposurelimitswithin10CFRPart20doselimitsandaslowasreasonably achievable(ALARA)objectives.AdditionalinformationonALARApracticesisdiscussedinChapter11.
Spacesinwhichthematerialsarehandledandequipmentusedtohandlethematerial,aresubjectto administrativecontrolstominimizecontamination,topreventradiologicalsabotage,theftordiversion, andtopreventuncontrolledreleaseofthematerials.Adescriptionoftheadministrativeprocedures relatedtouseofbyproduct,source,andspecialnuclearmaterialwillbeprovidedintheapplicationfor anOperatingLicense.
WastefromSNM,sourcematerial,orbyproductmaterialishandledthroughtheradioactivewaste managementprogramdescribedinSection11.2.1.Theradioactivewastehandlingsystemalsohandles drainsandventsforthefacilityincludinghandlingofcontaminatedliquidscollectedbythedrainsystem (seeSection11.2.2).
9.6.1 SpecialNuclearMaterial SNMisreceivedandusedatthefacilityintheformoffreshfuelparticlescontainedinpebbles(see Section9.3).FuelpebblescontainingSNMusehighassay,lowenricheduranium(lessthan20%
enrichment)atdifferentenrichmentlevels.
SNMishandledinthefuelintakearea,thePHSS,andthereactorvessel.Intheintakearea,SNMis managedbycompliancewith10CFRPart70,bytheuseoffreshfuelcanistersandbythenatureofthe pebbledesign,inwhichtheSNMisencapsulatedinagraphitesubstrate.Section9.3andChapter4 describehowthePHSSandthereactorvessel,respectively,preventuncontrolledreleasesofradioactive material.Ofthesystemsdescribedinthisparagraph,onlythefreshfuelhandlingareashavethe potentialfordirectcontactwiththeSNMduringnormaloperation.Atthislocation,theactivityofthe freshfuelisverylowandadministrativeproceduresthatminimizecontactwiththefreshfuelare sufficientinsupportofALARApractices.InthePHSS,spentfuelishandledincanistersandshieldingis usedtosupportALARApractices.
9.6.2 SourceMaterial Sourcematerialthatcontainsunenricheduraniumisalsoreceivedandusedatthefacilityintheformof unenrichedfuelparticlescontainedinfuelpebbles.Handlingoffuelpebblescontainingsourcematerial iswithinthesamesystemsasthepebblesthatcontainSNM.Sourcematerialismanagedbycompliance with10CFRPart40,byuseoffreshandspentfuelcanisters,andbythenatureofthepebbledesign,in whichthesourcematerialisencapsulatedinagraphitesubstrate.
9.6.3 ByproductMaterial ByproductmaterialsarebothusedinandgeneratedtosupportoperationoftheKPFHR.
Tritiumisgeneratedatthefacilityandisclassifiedasbyproductmaterial.Tritiumisgeneratedasaresult ofthenuclearreactioninthecore.ItispossiblefortTritiumtobeispresentthroughouttheprimary, intermediate,andpowergenerationsystems,andinthegraphitecoreoffuelpebbles.Becausethe