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LU Yu-zhao, XIE Qi-lin, SONG Ling-li, LIU Han-gang. Simulation of Rossi-α Method With Analog Monte-Carlo Method[J]. Atomic Energy Science and Technology, 2012, 46(增刊): 370-373. DOI: 10.7538/yzk.2012.46.suppl.0370
Citation: LU Yu-zhao, XIE Qi-lin, SONG Ling-li, LIU Han-gang. Simulation of Rossi-α Method With Analog Monte-Carlo Method[J]. Atomic Energy Science and Technology, 2012, 46(增刊): 370-373. DOI: 10.7538/yzk.2012.46.suppl.0370
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Simulation of Rossi-α Method With Analog Monte-Carlo Method

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  • The analog Monte-Carlo code for simulating Rossi-α method based on Geant4 was developed. The prompt neutron decay constan -α of six metal uranium configurations in Oak Ridge National Laboratory were calculated.-α was also calculated by Burst Neutron method and the result was consistent with the result of Rossi-α method. There is the difference between results of analog Monte-Carlo simulation and experiment, and the reasons for the difference is the gaps between uranium layers. The influence of gaps decrease as the sub-criticality deepens. The relative difference between results of analog Monte-Carlo simulation and experiment changes from 19% to 0.19%.
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