基于微扰计算的蒙特卡罗临界搜索方法研究  

Research on Perturbation Based Monte Carlo Criticality Search Method

作　　者：李泽光[1,2] 王侃[2] 邓景康[1] 李杨柳[2] 

机构地区：[1]清华大学物理系,北京100084 [2]清华大学工程物理系,北京100084

出　　处：《核动力工程》2014年第3期117-120,共4页Nuclear Power Engineering

基　　金：压水堆重大专项(2011ZX06004-024);自然科学基金(91126017);973项目(2007CB209807);核反应堆系统设计技术重点实验室基金

摘　　要：基于微扰计算,提出一种新的蒙特卡罗临界搜索方法。该方法仅需要对初始系统进行一次临界计算,利用临界计算结果及微扰计算结果,对有效增殖因子变化曲线进行估计,并以此为基础得到临界搜索的结果。计算结果表明,该方法可有效、准确地对临界搜索问题进行计算,并有效地克服了传统方法的不足。A new Monte Carlo criticality search method based on perturbation calculation is Carry out in this paper to overcome the disadvantages of traditional method. By using only one criticality run to get initial kerr and differential coefficients of concerned parameter, the polynomial estimator of Keff changing function is solved to get the critical value of concerned parameter. The feasibility of this method is tested, and results show that the accuracy and efficiency of perturbation based criticality search method is quite inspiring and overcomes the disadvantages of the traditional method.

关 键 词：反应堆临界搜索 蒙特卡罗方法 微扰计算 

分 类 号：TL329.2[核科学技术—核技术及应用]