活化缓发γ剂量计算软件JMCT-PK

Delayed γ Dose Calculation Code JMCT-PK

基于组合几何并行支撑框架(JCOGIN),采用随机积分的方法开发了点核积分程序JMCT-PK。该程序支持计算机辅助设计(CAD)实体组合几何建模,能和蒙特卡罗中子-光子输运程序(JMCT)活化计算无缝对接,能实现从活化到缓发γ剂量的一体化计算。本文主要介绍了点核积分的基本理论以及JMCT-PK的程序结构,并通过基准题对程序的正确性进行了验证,JMCT-PK计算结果与参考程序VisiPlan的计算结果基本吻合,验证了JMCT-PK程序的可靠性和正确性,以及累积因子对点核积分方法的重要性。

Based on the JCOGIN(J Combinatorial Geometry Infrastructure) infrastructure and stochastic integration, the point-kernel code JMCT-PK is developed. JMCT-PK supports the CAD modeling with constructive solid geometry. It can obtain the delayed ? source intensity from the calculated result of JMCT(Joined Monte Carlo neutron and photon Transport code). And JMCT-PK shares the same geometry model with JMCT. This paper introduces the theory of point-kernel method, the programming structure and the verification of the code JMCT-PK. The calculated result of JMCT-PK has a good agreement with the calculated result of VisiPlan, which shows the reliability of the code. The difference shows the importance of build-up factor in the point kernel method.