Zumbro J D, Acuff A, Bull J S, Hughes H G, Prael Richard E, Selcow E C
Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
Radiat Prot Dosimetry. 2005;117(4):447-52. doi: 10.1093/rpd/nci034. Epub 2006 Feb 3.
A modified version of MCNP5 has been developed to treat continuous-energy proton transport. This work is summarised in companion papers by Hughes et al. and Bull et al. (in these proceedings). An intrinsic part of this development effort has involved testing, verification and validation of a capability for simulating proton radiographs. This paper presents the results of calculations simulating various different test objects and the effects of alternative physics models. The significant physics processes include elastic scattering, multiple coulomb scattering, collisional energy-loss and straggling, magnetic fields and attenuation owing to nuclear interactions. Comparisons with experimental data are presented.
已开发出MCNP5的一个修改版本来处理连续能质子输运。这项工作在休斯等人和布尔等人的配套论文中进行了总结（在本次会议论文集中）。这一开发工作的一个固有部分涉及对质子射线照相模拟能力进行测试、验证和确认。本文展示了模拟各种不同测试对象的计算结果以及替代物理模型的影响。重要的物理过程包括弹性散射、多次库仑散射、碰撞能量损失和离散、磁场以及核相互作用导致的衰减。还给出了与实验数据的比较。
