Neutronics Conversion Analyses of the Laue-Langevin Institute (ILL) High Flux Reactor (RHF)

Bergeron, A.¹  Dionne, B.¹  Calzavara, Y.² 

[1] Argonne National Lab. (ANL), Argonne, IL (United States);Inst. Laue-Langevin (ILL), Grenoble (France)

关键词: COMPARATIVE EVALUATIONS;    CONVERSION;    URANIUM BASE ALLOYS;    MOLYBDENUM ALLOYS;    BINARY ALLOY SYSTEMS;    NUCLEAR FUELS;    EFFICIENCY;    PERFORMANCE;    RESEARCH REACTORS;    HEAVY WATER COOLED REACTORS;    HEAVY WATER MODERATED REACTORS;    ENRICHED URANIUM REACTORS;    FRANCE;    SLIGHTLY ENRICHED URANIUM;    HIGHLY ENRICHED URANIUM;    REACTOR KINETICS;    NEUTRON TRANSPORT THEORY;    MATHEMATICAL MODELS;   

DOI  :  10.2172/1227390
RP-ID  :  ANL/GTRI/TM--14/15
PID  :  OSTI ID: 1227390
Others  :  Other: 122482
Others  :  TRN: US1500913

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来源: SciTech Connect

【 摘 要 】

The following report describes the neutronics results obtained with the MCNP model of the RHF U7Mo LEU reference design that has been established in 2010 during the feasibility analysis. This work constitutes a complete and detailed neutronics analysis of that LEU design using models that have been significantly improved since 2010 and the release of the feasibility report. When possible, the credibility of the neutronics model is tested by comparing the HEU model results with experimental data or other codes calculations results. The results obtained with the LEU model are systematically compared to the HEU model. The changes applied to the neutronics model lead to better comparisons with experimental data or improved the calculation efficiency but do not challenge the conclusion of the feasibility analysis. If the U7Mo fuel is commercially available, not cost prohibitive, a back-end solution is established and if it is possible to manufacture the proposed element, neutronics analyses show that the performance of the reactor would not be challenged by the conversion to LEU fuel.