Title of article :
AcomparativeneutronicstudyofthestandardHEUcoreandvariouspotentialLEUalternativesforatypicalMNSRsystemOriginalResearchArticle
Author/Authors :
SadafWaqar، نويسنده , , SikanderM.Mirza، نويسنده , , NasirM.Mirza، نويسنده , , TariqAsad، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Acomparativestudyhasbeenperformedforneutronicanalysisofhighlyenrichedinuranium(HEU)andpotentiallowenrichedinuranium(LEU)coresforthePakistanResearchReactor-2(PARR-2)takenasatypicalminiatureneutronsourcereactor(MNSR)system.ThegroupconstantgenerationhasbeencarriedoutusingtransporttheorycodeWIMS-D4andadetailedfive-groupRZ-modelhasbeenusedintheCITATIONcodeformultigroupdiffusiontheoryanalysis.Theneutronicanalysisofthe90%HEUreferenceandpotentialLEUalternative:UO2,U3Si2andU9Mo,coreshasbeencarriedoutyielding11%,20.7%and14.25%enrichmentswithcorrespondingvaluesofexcessreactivity:4.33,4.30and4.07mk.TheseresultshavebeenfoundingoodagreementwithrecentlyreportedMonteCarlo-basedtransporttheorycalculations.Thediffusiontheory-basedcalculatedvaluesofthermalfluxprofilesforaxialaswellasforradialdirectionshavebeenfoundtoagreewellwiththecorrespondingexperimentalmeasurements.TheUO2-basedLEUcorehasbeenfoundhavingfluxspectrumclosesttothereferencecorewhileU9Mocorehassignificantlyharderfluxspectrumatirradiationsite.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
