Townsend L W, Cucinotta F A, Bagga R, Tripathi R K
NASA Langley Research Center, Hampton, VA 23681-0001, USA.
Adv Space Res. 1996;17(2):109-12. doi: 10.1016/0273-1177(95)00519-k.
The fragmenting of high energy, heavy ions (HZE particles) by hydrogen targets is an important, physical process in several areas of space radiation research. In this work quantum mechanical optical model methods for estimating cross sections for HZE particle fragmentation by hydrogen targets are presented. The cross sections are calculated using a modified abrasion-ablation collision formalism adapted from a nucleus-nucleus collision model. Elemental and isotopic production cross sections are estimated and compared with report measurements for the breakup of neon, sulphur, and iron, nuclei at incident energies between 400 and 910 MeV/nucleon. Good agreement between theory and experiment is obtained.
高能重离子（HZE粒子）与氢靶的碎裂是空间辐射研究多个领域中的一个重要物理过程。在这项工作中，提出了用于估算HZE粒子与氢靶碎裂截面的量子力学光学模型方法。使用从核-核碰撞模型改编而来的改进型磨损-烧蚀碰撞形式来计算截面。估算了元素和同位素的产生截面，并与入射能量在400至910兆电子伏/核子之间时氖、硫和铁原子核破裂的报告测量值进行了比较。理论与实验之间取得了良好的一致性。
