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SP3-coupled global variance reduction method based on RMC code

delete2021-11-16
delete17
PRE
AI
Q
Qingquan Pan *
T
Tengfei Zhang
X
Xiaojing Liu
何
何辉 (Hui He)
K
Kan Wang
DOI:10.1007/s41365-021-00973-0delete
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Abstract

Abstract

En 中文
A global variance reduction (GVR) method based on the SPN method is proposed. First, the global multi-group cross-sections are obtained by Monte Carlo (MC) global homogenization. Then, the SP3 equation is solved to obtain the global flux distribution. Finally, the global weight windows are approximated by the global flux distribution, and the GVR simulation is performed. This GVR method is implemented as an automatic process in the RMC code. The SP3-coupled GVR method was tested on a modified version of C5G7 benchmark with a thickened water shield. The results show that the SP3-coupled GVR method can improve the efficiency of MC criticality calculation.
Keywords:
RMC code
Global homogenization
Variance reduction
SPN theory

Journal

Nuclear Science and Techniques cover
Nuclear Science and Techniques
IF:
3.8
Papers:
2.2K
Citations:
3.4K

Organization

S
shanghai jiao tong university
Scholars:
15.7W
Papers: 11.7W
Citations: 159
T
tsinghua university
Scholars:
11.9W
Papers: 10.0W
Citations: 137
Cited Papers

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