【摘要】 本文从入射中子能量为E=14MeV的σ_n,2n实验值出发,应用复合核模型,计算了十三种无分支比复合核衰变的非裂变重核（A>169）的（n,2n）、（n,3n）激发函数。与实验激发曲线比较,讨论了计算的合理性和可靠性。更多还原

【Abstract】 Calculation of (n, 2n) and (n, 3n) excitation functions for 13 nonfissionable heavy nuclides of A>169, of which the compound-nucleus decay is without branching ratio,has been made based on the experimental values of σ(n,2n) for 14 MeV fast neutron using the compound-nucleus mddel.The results have been compared with the experimental excitation functions. The reliability and the reasonableness of the computation are discussed.更多还原