Abstract The Scale Method was applied for an analysis of experimental and evaluated data of Prompt Fission Neutron Spectra for different isotopes and incident neutron energies below 6 MeV. It was demonstrated that the method describes all experimental data sets in the outgoing neutron energy range 0–7 MeV within uncertainties. Theoretical arguments were provided to support the application of this method. Some important peculiarities connected with the neutron emission mechanism were identified, and proposals for future theoretical and experimental investigations were discussed. It was concluded that the new evaluations completed recently for 235 U systematically overestimate the average energy of experimental prompt fission neutron spectra.

中文翻译：

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规模法作为快速裂变中子谱分析和评估的一种方法

摘要 采用标度法对6 MeV以下不同同位素和入射中子能量的瞬发裂变中子谱的实验和评价数据进行了分析。结果表明，该方法描述了不确定性内 0-7 MeV 输出中子能量范围内的所有实验数据集。提供了理论论证来支持这种方法的应用。确定了与中子发射机制有关的一些重要特性，并讨论了对未来理论和实验研究的建议。结论是，最近完成的 235 U 新评估系统地高估了实验瞬发裂变中子谱的平均能量。