Validation of three-dimensional coupled Discrete Ordinates-Monte Carlo program system through shielding benchmark analysis
The radiation shielding calculation of large nuclear device is complicated by the bulk shield and complex geometries. These complications make it difficult to meet calculation requirement by using a single code. A program system based on three-dimensional discrete ordinates (SN)-Monte Carlo (MC) coupled method has been developed to combine the advantages of SN in deep-penetration-relevant problem calculation and MC in treating complex geometry problem. The coupled method is implemented in the interface program to calculate the probability of particle variables from SN angular flux distribution. A special source routine is written and linked to MC code to processed these probability arrays and sample the particle variables to provide source for the next MC calculation and realize the coupled calculation. The H.B.Robinson Unit 2 pressure vessel benchmark was used to validate the SN-MC coupled program system. The specific activities for the six dosimeters in the surveillance capsule were calculated. Satisfactory agreements were obtained in the comparison with the measurements and other methods results in the literature. The result demonstrates that the SN-MC coupling scheme with the program system is reasonable.
Discrete Ordinate Monte Carlo Coupled method Shielding Benchmark validation
Jing-ru HAN Yi-xue CHEN Long-jun YUAN Dao-gang LU
School of Nuclear Science and Engineering North China Electric Power University Beijing, China
国际会议
三峡
英文
2870-2873
2012-05-18（万方平台首次上网日期，不代表论文的发表时间）