摘要
在14.7 MeV中子能量下,测量了^(85)Rb(n,2n)反应同质异能态截面及其比值。实验比值与Vandenbosh-Huizenga方法算出的理论值做了比较,定出了自旋切割因子σ值。
Isomeric cross-sections and their ratio were measured for the reaction ^(85)Rb(n,2n) ^(84m.8)Rb induced by 14.7 Me V neutrons. The results of the. cross-sections are compared with values in the literatures. The ratio is also compared with calculated value by using of the Vandenbosh-Huizenga's method. Value of the spin cut-off parameter σ of the nuclear level density is deduced for the measured ratio.
