论文标题
快速中子诱导$^{240} $ pu和$^{242} $ pu的裂变
The fast neutron induced fission of $^{240}$Pu and $^{242}$Pu
论文作者
论文摘要
我们报告了$^{240} $ pu和$^{242} $ pu的快速中子诱导裂变中TKE版本的测量。将结果与GEF模型，CGMF模型以及Denisov和SedyKH的模型的预测以及这些反应的先前实验工作进行了比较。我们对TKE释放的绝对测量值与先前对Nethaway \ textit {et al。}的测量值一致，即与$^{240} $ pu \ pu \ cite {nethaaway}的相互作用的相互作用，以及与$^emman and Aumann的相互作用。测得的TKE值的一般趋势与现象学模型一致，但是TKE分布的方差显着少于各种模型所预测的。平均中子后排放量释放随着中子能量的增加而非线性减少，可以表示为TKE（MEV）= 175.8 $ \ pm $ 0.3-（2。4$ \ pm $ 0.8）log $ _ {10} $ _ {10} $ e $ _n $ - $^{240} $ pu and tke（mev）= 177.1 $ \ pm $ 0.3 - （1.2 $ \ pm $ 0.9）log $ _ {10} $ _ {10} $ e $ _n $ - （1.8 $ \ pm $ 0.5）log $ _ {10} $ _ {10} $ e $ e $ _ $ _ {n}^2 $ for $^for $^for $^for $^for $^242}
We report the measurement of the TKE release in the fast neutron induced fission of $^{240}$Pu and $^{242}$Pu. The results are compared to the predictions of the GEF model, the CGMF model, and the model of Denisov and Sedykh as well as previous experimental work on these reactions. Our absolute measurements of the TKE release are in good agreement with the previous measurements of Nethaway \textit{et al.} for the interaction of 14.8 MeV neutrons with $^{240}$Pu \cite{Nethaway} and of Winkelmann and Aumann for the interaction of 15 MeV neutrons with $^{242}$Pu \cite{Winkelmann}. The general trends of the measured TKE values agree with phenomenological models but the variances of the TKE distributions are significantly less than predicted by various models. The mean post neutron emission TKE release decreases non- linearly with increasing neutron energy and can be represented as TKE(MeV) = 175.8 $\pm$ 0.3 - (2. 4 $\pm$ 0.8)log$_{10}$E$_n$ - (1.4 $\pm$0.4)log$_{10}$E$_{n}^2$ for $^{240}$Pu and TKE(MeV) = 177.1 $\pm$ 0.3 - (1.2 $\pm$ 0.9)log$_{10}$E$_n$ - (1.8 $\pm$0.5)log$_{10}$E$_{n}^2$ for $^{242}$Pu.
