A method to calculate DPA cross sections of arbitrary materials exposed to protons, neutrons and ions using a track structure calculation model is developed. This method was applied to calculate the DPA cross section of copper irradiated by protons and neutrons for benchmarking. The calculation reproduced the earlier measurement data from 1 to 1000 MeV ranging 3 orders of magnitude within a factor of 3. Our calculation model, available as a part of the radiation transport code PHITS, offers the topological arrangement of the defects induced by radiation, which is demonstrated in SiO specimens exposed to protons and neutrons.

中文翻译：

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轨道结构计算模型模拟缺陷形成

开发了一种使用轨道结构计算模型计算暴露于质子、中子和离子的任意材料的 DPA 横截面的方法。应用该方法计算了质子和中子辐照铜的DPA截面，以进行基准测试。该计算再现了从 1 到 1000 MeV 的早期测量数据，范围为 3 倍，范围为 3 个数量级。我们的计算模型可作为辐射传输代码 PHITS 的一部分，提供由辐射引起的缺陷的拓扑排列，其中在暴露于质子和中子的 SiO 样品中得到了证明。