基于网格计数的停机剂量率计算方法研究  

Rigorous Two-step Shutdown Dose rate Calculation Method Based on Mesh Tally

作　　者：郑剑[1] 李斌[1] 邹俊[1] 杨琪[1] 

机构地区：[1]中国科学院核能安全技术研究所,中国科学院中子输运理论与辐射安全重点实验室,合肥230031

出　　处：《核科学与工程》2016年第6期784-789,共6页Nuclear Science and Engineering

基　　金：国家ITER 973计划(2011GB11306);中科院战略性先导科技专项(XDA03040000);中国科学院知识创新工程重要方向项目(095CF2R211、KJCX2-YW-N35)

摘　　要：本文根据严格二步法的计算理论,研究了基于网格计数的停机剂量率计算方法,设计并实现了基于网格计数的停机剂量率计算程序。该程序能够支持圆柱坐标下的网格计算。本文使用源子程序进行复杂源描述。为了加快计算速度,本文采用了多节点和多线程等技术。本文利用国际热核聚变实验堆(ITER)停堆剂量基准实验ITER-T426进行测试,计算结果与实验值吻合良好,证明了该方法和程序的正确性和可用性。Based on the computation theory of rigorous two-step,a shutdown dose rate calculation code utilizing mesh tally technique was developed.This code supported cylindrical mesh.It integrated a source subroutine which could provide sources sampling from repeated structures geometry.Additionally,based on the platform of multi-core blade server,multi-node and multi-thread technique were adopted to conduct the mesh material and inventory calculations.The verification test was conducted on ITER-T426 experimental benchmark.The results were in good agreement with the experimental values,which proved the validity and reliability of this method and code.

关 键 词：网格计数 停机剂量率 严格二步法 自动耦合 

分 类 号：TL63[核科学技术—核技术及应用]