【摘要】 水文介绍用活化法测量14.6MeV中子引起的⁴⁵Sc（n,2n）^44g+mSc反应的同质异能素截面比,及用自编的EPRIR程序计算的该核素带有预平衡机制的统计模型同质异能素截面比。通过实验值与理论值的比较,可以验证实验自旋切割因子值,并讨论预平衡机制对该反应的贡献。更多还原

【Abstract】 The work is devoted to the measurement of isomeric cross section ratio in 46Sc(n, 2n) 44g+mSc induced by 14.6 MeV neutron with the activation method. Considering thestatistical model with preequilibrium mechanism,we -have computed the isomeric crosssection ratio of the nuclei with EPRIR program, compiled by ourselves.By comparison of the experimental results with the theory, the spin cut-off parameter and the contribution of preequilibrium mechanism have been determined.更多还原