强激光与粒子束2013，Vol.25Issue(1)：233-236,4.DOI:10.3788/HPLPB20132501.0233
西安脉冲堆127I嬗变计算方法与实验验证
Calculation and experimental validation of 127I transmutation rate in Xi' an pulsed reactor
摘要
Abstract
In order to develop the research on 129I transmutation in the thermal reactor, 127I target was irradiated in Xi'an pulsed reactor(XAPR) to explore the condition for experiment in XAPR. The Monte Carlo method was used in the calculation of 127I target transmutation rate, and the results were compared with the experimental data. The NJOY software was used to generate 137 I ace format neutron cross section at XAPR operating temperature based on ENDF/B VII. 0 library. New cross section was compared with old ENDF/B VI library and developed in the unresolved resonance region. MCNP was used to modify the 127 I cross section of ORIGEN2 by adopting a new cross section, then transmutation of 127 I target was calculated to analyze changes of transmutation rate and nuclides, also the influence of neutron spectrum and irradiating time on transmutation was studied. The CINDER'90 software, a depletion mode of MCNPX, was also used to model the transmutation condition, the analytical result was consistent with ORIGEN2, but was a little different from the experimental data (2%-3% error) because of the deviation from the MCNP model in neutron flux calculation.关键词
热中子嬗变/核数据库/MCNP/ORIGEN2/CINDER'90Key words
thermal neutron transmutation/ nuclear library/ MCNP/ ORIGEN2/ CINDER'90分类
能源科技引用本文复制引用
王立鹏,江新标,赵柱民,李雪松,吴宏春..西安脉冲堆127I嬗变计算方法与实验验证[J].强激光与粒子束,2013,25(1):233-236,4.基金项目
国家高技术发展计划项目 （）
