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LI Yi-guo, DU Kai-wen, XIA Pu, WU Xiao-bo, PENG Dan. Primary Research for Conversion of Prototype Miniature Neutron Source Reactor With Low Enrichment Uranium[J]. Atomic Energy Science and Technology, 2012, 46(增刊): 403-405. DOI: 10.7538/yzk.2012.46.suppl.0403
Citation: LI Yi-guo, DU Kai-wen, XIA Pu, WU Xiao-bo, PENG Dan. Primary Research for Conversion of Prototype Miniature Neutron Source Reactor With Low Enrichment Uranium[J]. Atomic Energy Science and Technology, 2012, 46(增刊): 403-405. DOI: 10.7538/yzk.2012.46.suppl.0403
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Primary Research for Conversion of Prototype Miniature Neutron Source Reactor With Low Enrichment Uranium

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  • The parameters of prototype miniature neutron source reactor (MNSR) with high enrichment uranium (HEU), such as keff, worth of the central control rod, worth of top beryllium reflector and the neutron flux density, were calculated using the Monte-Carlo code. The comparison was made between the calculated results and the experimental results, and they fit with each other very well. Without changing the core dimensions of the prototype MNSR，but substituting the HEU fuel with LEU fuel of UO2 with 12.5% enrichment and Al cladding with zircaloy cladding, keff, worth of the central control rod and neutron flux density were calculated again, and thermal dynamic features of releasing 4.0 mk excess reactivity were analyzed using RELAP5 code.
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