Title of article
CharacterizationofneutronfieldintheexperimentalfastreactorJOYOforfuelandstructuralmaterialirradiationtestOriginalResearchArticle
Author/Authors
TakafumiAoyama، نويسنده , , TakashiSekine، نويسنده , , ShiroTabuchi، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
14
From page
21
To page
34
Abstract
TheexperimentalfastreactorJOYOhasbeenoperatedasanirradiationtestfacilityforfastreactorfuelandstructuralmaterialsince1983withitsMK-IIcore.Duringthistime,anextensivestudywasconductedtocharacterizetheneutronfieldinordertoassuretheaccuracyandreliabilityofneutronfluence.Neutronfluxforagivenirradiationtestwascalculatedusingacoremanagementcodesystembasedonthree-dimensionaldiffusiontheory.Itwasthencorrectedwiththeadjustedneutronspectrumbymeansofthemultiplefoilactivationmethod.Theneutronfluencecalculationaccuracyinthefuelregionwasevaluatedwithina5%errorbycomparingtheburn-upofspentfuelwiththemeasuredvalues,whichhadbeenobtainedfromtheirpost-irradiationexamination.Atpositionsawayfromthefuelregion,theneutronfluxdistributionwascalculatedusingatwo-dimensionaltransportcode.AMonteCarlocodewasalsousedtoanalyzethedetailedneutronfluxdistributionwithinanirradiationtestsubassemblythathadaheterogeneousinternalstructure.Withtheneutronfluxresultsvariousirradiationparameters,suchasdisplacementperatom(dpa)andheliumproduction,couldbeevaluated.Aheliumaccumulationfluencemonitorhasbeendevelopedtomeasurenotonlyneutronfluencebutalsoheliumproduction.Neutronfluxandfluenceobtainedfromthecoremanagementcalculationswerecompiledasadatabaseforusers’conveniencetogetherwithrelatedirradiationinformationandfuelsubassemblymaterialcompositions.Thesedataareexpectedtobewidelyusedinthepost-irradiationanalysisoffuelandstructuralmaterial.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894667
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