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激活分析


这项工作通过将 a89Zr 靶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。库存计算采用MCNP6和FISAPCT-Ⅱ代码，计量采用效率传递法推导的效率。采用MCNP6的ENDF/B-Ⅶ库（89Y的TENDL-2017库）和CEM03.03物理模型来模拟质子反应，而单独使用ENDF/B-Ⅶ库来模拟中子反应。为了验证效率转移方法获得的效率，将参考源的计算活性与测量活性进行比较，并确认在 11% 以内。对于目标组件，平均计算与测量的活性（C/M）比确定为0.7-2.0（物理模型）和0.7-1.5（TENDL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，本研究提出的方法可用于制定回旋加速器设施的退役计划，包括目标组件等回旋加速器部件的废物处理计划。