摘要
在统计理论及考虑角动量守恒的激子模型的基础上，运用ＭｏｎｔｅＣａｒｌｏ方法计算（ｎ，２０）反应同质异能态截面比。以５９￣Ｃｏ（ｎ，２ｎ）￣５８Ｃｏ、９３￣Ｎｂ（ｎ，２ｎ）９２￣Ｎｂ和１８１￣Ｔａ（ｎ，２ｎ）１８０￣Ｔａ的３个反应道为例，计算从其阈能到２０ＭｅＶ能区的同质异能态截面比，并和已有实验数据做了比较，结果符合较好。
Monte Carlo Calculations of the isomeric cross section ratio for (n,2n)reaction basedon the compound nuclear reaction theories and exciton-model are presented. Thecalculations are compared with experimental measurements for Co (n,2n) Co, Nb(n,2n)92Nband 181Ta(n,2n) 180 Ta reactions in the energy region from threshold to 20MeV. The agreemeat between calculation and experiment indicates that the present method is suitable to calculate the isomeric cross section ratio for (n,2n)reactions.
出处
《高能物理与核物理》
CSCD
北大核心
1997年第5期453-457,共5页
High Energy Physics and Nuclear Physics
