Dimbylow P J
Phys Med Biol. 1980 Jul;25(4):637-49. doi: 10.1088/0031-9155/25/4/002.
The advent of high energy neutron radiotherapy will require the neutron cross-section data and kerma factors for elements of biomedical importance to be extended up to and possibly above 50 MeV. Nuclear model calculations have been employed to produce a set of neutron cross-sections for C, N and O from 20 to 50 MeV. The strategy employed involves the optical model fitting of experimental total cross-sections to produce elastic and non-elastic cross-sections. The non-elastic cross-section is then used to normalise the individual reaction cross-sections and charged particle spectra produced by the statistical model of level densities. Kerma values are obtained from charged particle and recoil nucleus spectra. A comparison is made with other kerma calculations, based on the intranuclear cascade-evaporation model, which are consistently lower than the results presented in this paper.
高能中子放射疗法的出现将要求扩展具有生物医学重要性的元素的中子截面数据和比释动能因子，能量范围要达到并可能超过50 MeV。已采用核模型计算来生成碳、氮和氧在20 MeV至50 MeV之间的一组中子截面。所采用的策略包括对实验总截面进行光学模型拟合，以产生弹性和非弹性截面。然后使用非弹性截面来归一化由能级密度统计模型产生的各个反应截面和带电粒子能谱。比释动能值从带电粒子和反冲核能谱中获得。与基于核内级联蒸发模型的其他比释动能计算结果进行了比较，这些结果始终低于本文给出的结果。
