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本文介绍应用穿透几率法求解X-Y几何多群中子输运方程的程序—TPXY。把系统分成若干子区,子区内部中子通量呈线性分布,子区表面通量角分布采用4P_1近似,空间呈线性分布。对一系列组件基准问题作了校验计算,计算结果与S_N,碰撞几率及其它穿透几率方法的结果进行了比较,均符合良好。本程序可用于轻水堆组件计算。
This article describes the application of penetration probability method to solve the X-Y geometry multi-group neutron transport equation program-TPXY. The system is divided into several subzones. The neutron fluxes in the subzones are linearly distributed. The distribution of the flux angle in the subzones is approximated by 4P_1, and the space is linearly distributed. Comparisons of a series of component benchmarking problems were made. The calculated results are in good agreement with the results of S_N, collision probability and other penetration probabilities. This program can be used for light water reactor component calculation.