This work evaluated the validity of computer simulation codes by comparing the results of an inventory calculation for a89Zr target assembly with measured data obtained using a high-purity germanium detector. For the inventory calculation, the MCNP6 and FISAPCT-Ⅱ codes were used, and for the measurement, efficiency derived from the efficiency transfer method was used. The MCNP6's ENDF/B-Ⅶ library (TENDL-2017 library for 89Y) and the CEM03.03 physics model were employed to simulate proton reactions, while the ENDF/B-Ⅶ library alone was utilized for neutron reactions. To verify the efficiency obtained by the efficiency transfer method, the calculated activity of the reference sources was compared with the measured activity and confirmed to be within 11%. For the target assembly, the average calculated-to-measured activity (C/M) ratio was determined to be 0.7–2.0 (physics model) and 0.7–1.5 (data library with TENDL), thus confirming the validity of the computer simulation codes. The above results suggest that the methods presented in this study could be used to establish decommissioning plans for the cyclotron facility, including plans for waste disposal of cyclotron components such as target assemblies.

中文翻译：

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RFT-30 回旋加速器靶组件的活化分析


这项工作通过将 a89Zr 目标组件的库存计算结果与使用高纯锗探测器获得的测量数据进行比较，评估了计算机模拟代码的有效性。在库存计算中，使用了 MCNP6 和 FISAPCT-II. 代码，在测量中，使用了从效率转移法得出的效率。MCNP6 的 ENDF/B-VII. 库（89Y 的 TENDL-2017 库）和 CEM03.03 物理模型用于模拟质子反应，而 ENDF/B-VII. 库则单独用于中子反应。为了验证通过效率传递法获得的效率，将参考源的计算活度与测得的活度进行比较，并确认在 11% 以内。对于目标组件，平均计算与测量活性 （C/M） 之比被确定为 0.7-2.0（物理模型）和 0.7-1.5（带有 TENDL 的数据库），从而证实了计算机模拟代码的有效性。上述结果表明，本研究中提出的方法可用于建立回旋加速器设施的退役计划，包括回旋加速器组件（如目标组件）的废物处理计划。