论文标题
在快速中子诱导的237np裂变中的总动能释放
Total kinetic energy release in the fast neutron-induced fission of 237Np
论文作者
论文摘要
在Lansce -WNR设施的EN = 2.6-100 MeV中测量了快速中子诱导的237NP裂变的总动能（TKE）。 TKE释放随着入射中子能量的增加而非线性降低，可以表示为TKE（MEV）=（174.38 +-0.72） - （5.11 +-0.5821）log10 en> eN> 1 MEV。对碎片质量分布的分析表明，随着EN的增加，TKE的减少是两个因素的结果。壳效应在高激发能量下逐渐消失，导致对称裂变的发生增加，而Tkeasym在高EN下迅速降低。
The total kinetic energy (TKE) in the fast neutron induced fission of 237Np was measured for neutron energies from En = 2.6 - 100 MeV at the LANSCE-WNR facility. The post TKE release decreases non-linearly with increasing incident neutron energy and can be represented as TKE(MeV) = (174.38 +- 0.72) - (5.11 +- 0.5821) log10 En for En > 1 MeV. Analysis of the fragment mass distributions indicates that the decrease in TKE with increasing En is a consequence of two factors; shell effects fade out at high excitation energies, resulting in the increasing occurrence of symmetric fission, and TKEasym decreases rapidly at high En.
