Development of general next event surface crossing estimators for Monte Carlo method.
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概要
- 論文の詳細を見る
General NXTEVT's (next event surface crossing estimators), which have no restriction for detector location and orientation setting, have been developed for the Monte Carlo method of radiation transport calculation. The detectors are of ring, spherical band, cylinder and rhomboid geometry. The detailed formulas of flux scoring are described for each detector geometry. Two sample problems are analyzed in order to study the applicability of NXTEVT's to radiation shielding analysis. First, through the analysis of a simple one-velocity problem for an infinite isotropic scattering medium with an isotropic radiation source, using the spherical band type NXTEVT, the accuracy of the results is verified. Second, a problem of neutron transport in the system with an axial symmetric geometry is solved by using the cylinder and ring type NXTEVT's. The results shows NXTEVT is more efficient to obtain the solution in such a system than the point detector and boundary crossing estimators.
- 一般社団法人 日本原子力学会の論文
著者
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KAWAI Masayoshi
NAIG Nuclear Research Laboratory Nippon Atomic Industry Group Co., Ltd.
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HAYASHIDA Yoshihisa
NAIG Nuclear Research Laboratory Nippon Atomic Industry Group Co., Ltd.
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