Nuclear Engineering Department, University of Tennessee, Knoxville, TN, 37996, USA; Nuclear and Radiochemistry Group, Isotope and Fuel Cycle Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831-6226, USA.
Nuclear and Radiochemistry Group, Isotope and Fuel Cycle Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831-6226, USA.
Appl Radiat Isot. 2021 Jun;172:109676. doi: 10.1016/j.apradiso.2021.109676. Epub 2021 Mar 3.
Monte Carlo transport codes PHITS and MCNP6 were used to calculate the production cross sections of Ac, Th, Ra, and Pa via the bombardment of aTh target with energetic protons, deuterons, and α-particles. The incident projectile energies ranged between 10 and 800 MeV/nucleon. When possible, the predicted production cross sections were compared with the available experimental data and other predictions. The degree of the codes' abilities to match the measured data provides a qualitative assessment of the codes' abilities to predict data from similar, but unmeasured, projectile/target systems. In addition, a comparison between calculated cross sections and data may provide insight into possible improvements in the physics models employed by those transport codes.
利用 PHITS 和 MCNP6 这两款蒙特卡罗输运代码，通过用能量为 10 到 800 MeV/核子的质子、氘核和 α 粒子轰击 Th 靶，计算了 Ac、Th、Ra 和 Pa 的生成截面。当可能时，将预测的生成截面与现有的实验数据和其他预测结果进行了比较。代码与测量数据匹配的程度提供了对代码预测类似但未经测量的射弹/靶系统数据的能力的定性评估。此外，计算的截面与数据的比较可以深入了解这些输运代码所采用的物理模型的可能改进。
