物理学报2016，Vol.65Issue(6)：67-72,6.DOI:10.7498/aps.65.062801
蒙特卡罗临界计算全局计数效率新算法研究∗
Algorithm researches for efficient global tallying in criticality calculation of Monte Carlo metho d
摘要
Abstract
Based on the research of the uniform fission site algorithm, the uniform tally density algorithm and the uniform track number density algorithm are proposed and compared with the original uniform fission site algorithm in this paper for seeking high performance of global tallying in Monte Carlo criticality calculation. Because reducing the largest uncertainties to an acceptable level simply by running a large number of neutron histories is often prohibitively expensive, the researches are indispensable for the calculation to reach the goal of practical application (the so called 95/95 standard). Using the global volume-averaged cell flux tally and energy deposition tally of the pin-by-pin model of Dayawan nuclear reactor as two examples, these new algorithms show better results. Although the uniform tally density algorithm has the best performance, the uniform track number density algorithm still has the advantage of being applicable to any type of tally, which is based on the track length estimator without any modification. All the algorithms are realized in a recently developed parallel Monte Carlo particle transport code JMCT.关键词
蒙特卡罗方法/临界计算/全局计数Key words
Monte Carlo method/criticality calculation/global tally引用本文复制引用
上官丹骅,邓力,李刚,张宝印,马彦,付元光,李瑞,胡小利..蒙特卡罗临界计算全局计数效率新算法研究∗[J].物理学报,2016,65(6):67-72,6.基金项目
能源局专项(批准号:2015ZX06002008)、国家自然科学基金重点项目(批准号:91118001),国防科工局核能发展计划(批准号:[2012]1523)、中国工程物理研究院科学基金(批准号:2014B0202029)和国家高技术研究发展计划(批准号:2012AA01A303)资助的课题.* Project supported by the Special Projects of the National Energy Administration, China (Grant No.2015ZX06002008), the Key Program of the National Natural Science Foundation of China (Grant No.91118001), the State Administration of Science, Technology and Industry for National Defense, PRC (Grant No.[2012]1523), the Science Foundation of China Academy of Engineering Physics (Grant No.2014B0202029), and the National High Technology Research and Development Program of China (Grant No.2012AA01A303) （批准号:2015ZX06002008）
