Abstract A new suite of evaluations for 54,56,57,58 Fe has been developed in the framework of the CIELO international collaboration. New resolved resonance ranges were evaluated for 54 Fe and 57 Fe, while modifications were applied to resonances in 56 Fe. The low energy part of the 56 Fe file is almost totally based on measurements. At higher energies in 56 Fe and in the whole fast neutron range for minor isotopes the evaluation consists of model predictions carefully adjusted to available experimental data. We also make use of the high quality and well experimentally-constrained dosimetry evaluations from the IRDFF library. Special attention was dedicated to the elastic angular distributions, which were found to affect results of the integral benchmarking. The new set of iron evaluations was developed in concert with other CIELO evaluations and they were tested together in the integral experiments before being adopted for the ENDF/B-VIII.0 library.

中文翻译：

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评估 CIELO 和 ENDF/B-VIII.0 中铁同位素的中子反应

摘要 在 CIELO 国际合作的框架内开发了一套新的 54,56,57,58 Fe 评估。对 54 Fe 和 57 Fe 的新分辨共振范围进行了评估，同时对 56 Fe 的共振进行了修改。56 Fe 文件的低能量部分几乎完全基于测量。在 56 Fe 的较高能量和次要同位素的整个快中子范围内，评估包括根据可用实验数据仔细调整的模型预测。我们还利用来自 IRDFF 库的高质量和良好的实验约束剂量测定评估。特别注意弹性角分布，发现它会影响积分基准测试的结果。