原子能科学技术2016，Vol.50Issue(3)：459-463,5.DOI:10.7538/yzk.2016.50.03.0459
压水堆3H源项计算分析
Calculation Analysis of Tritium Source Term in PWR
摘要
Abstract
T he mechanism of tritium production and reduction in primary coolant of pressurized water reactor (PWR) was studied .The tritium calculation models were established based on tritium metabolism .The contribution of various ways to generate tritium was calculated and the influence of 7 Li purity on tritium production was analyzed .T he results show that the optimization models consider in detail the change of nuclides concentration from which tritium nuclides are produced with time ,and the tritium production is 52.08 TBq/a .The tritium nuclides in PWR primary coolant are mainly from the activation reaction of soluble boron by absorbing neutron and the terna‐ry fission of uranium , w hich contribute more than 90% . When the purity of 7 Li is 99.9% ,the tritium produced from lithium accounts for 7.45% .Other ways produce a small amount of tritium w hich can be ignored . T he contribution of lithium decreases linearly w hen the purity of 7 Li increases .T he research results could provide a reference for the calculation of tritium source term of PWR .关键词
压水堆/中子活化反应/硼/锂/氚Key words
PWR/neutron activation reaction/boron/lithium/tritium分类
能源科技引用本文复制引用
陈海英,张春明,王韶伟,李怀斌..压水堆3H源项计算分析[J].原子能科学技术,2016,50(3):459-463,5.基金项目
国家科技重大专项资助项目 （）
