Preliminary study on CAD-based method of characteristics for neutron transport calculation

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CHEN Zhen-Ping, ZHENG Hua-Qing, SUN Guang-Yao, SONG Jing, HAO Li-Juan, HU Li-Qin and WU Yi-Can. Preliminary study on CAD-based method of characteristics for neutron transport calculation[J]. Chinese Physics C, 2014, 38(5): 058201. doi: 10.1088/1674-1137/38/5/058201
CHEN Zhen-Ping, ZHENG Hua-Qing, SUN Guang-Yao, SONG Jing, HAO Li-Juan, HU Li-Qin and WU Yi-Can. Preliminary study on CAD-based method of characteristics for neutron transport calculation[J]. Chinese Physics C, 2014, 38(5): 058201.  doi: 10.1088/1674-1137/38/5/058201 shu
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Received: 2013-06-19
Revised: 1900-01-01
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Preliminary study on CAD-based method of characteristics for neutron transport calculation

    Corresponding author: HU Li-Qin,

Abstract: Our new method makes use of a CAD-based automatic modeling tool, MCAM, for geometry modeling and ray tracing of particle transport in method of characteristics (MOC). It was found that it could considerably enhance the capability of MOC to deal with more complicated models for neutron transport calculation. In our study, the diamond-difference scheme was applied to MOC to reduce the spatial discretization errors of the flat flux approximation. Based on MCAM and MOC, a new 2D MOC code was developed and integrated into the SuperMC system, which is a Super Multi-function Computational system for neutronics and radiation simulation. The numerical results demonstrated the feasibility and effectiveness of the new method for neutron transport calculation in MOC.

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