The incident neutron energy dependence of the neutron multiplication rate constant α is studied for ²³⁵U- and ²³⁹Pu-based nuclear explosions. At high neutron energy, α comes out to be about 10 generations/shake for both ²³⁵U and ²³⁹Pu. In addition, the photon gas model seems to hold well for the very early stage of a nuclear explosion as one is able to reproduce the yield (20.4 2.4) kiloton for the Trinity test.

中文翻译：

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核爆炸：一项研究

研究了²³⁵ U 和²³⁹ Pu 基核爆炸的中子倍增率常数 α 的入射中子能量依赖性。在高中子能量下，²³⁵ U 和²³⁹ Pu 的α 大约为 10 代/震动。此外，光子气体模型似乎适用于核爆炸的早期阶段，因为可以重现三位一体测试的产量 (20.4 2.4) 千吨。