The excitation functions of ⁷⁰Ge(p,n)⁷⁰As,⁷²Ge(p,n)⁷²As, ⁷⁴Ge(p,n)⁷⁴As and ⁷⁶Ge(p,n)⁷⁶As reactions were studied from reaction threshold to 30 MeV by using EMPIRE-3.2 and TALYS-1.9 nuclear reaction model codes. This study is important because some isotopes produced are important for positron emission tomography (PET). Direct, pre-compound and compound nuclear reactions are considered as main nuclear reaction mechanisms in the codes. The calculated excitation functions have been compared with available experimental data and found to be in fair agreement. Furthermore, the contributions of various reaction mechanisms have been studied in total reaction cross-section that varies with the incident proton energy. The estimation of induced radio activity in thick Ge target due to the primary interaction is carried out for1μA, 30 MeV proton beam.

中文翻译：

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30 MeV质子束在Ge同位素中的生产截面和诱导活性

⁷⁰ Ge（p，n）⁷⁰ As，⁷² Ge（p，n）⁷² As，⁷⁴ Ge（p，n）⁷⁴ As和⁷⁶ Ge（p，n）⁷⁶的激发函数通过使用EMPIRE-3.2和TALYS-1.9核反应模型代码研究了从反应阈值到30 MeV的反应。这项研究很重要，因为产生的某些同位素对于正电子发射断层扫描（PET）十分重要。直接，预复合和复合核反应被认为是规范中的主要核反应机制。已将计算出的激励函数与可用的实验数据进行了比较，并发现两者之间存在合理的一致性。此外，已经研究了总反应横截面随入射质子能量变化的各种反应机理的贡献。对于1μA，30 MeV质子束，通过一次相互作用估算了厚Ge靶中的感应放射性。