CALCULATION OF CHARGED-PARTICLE FLUENCE AND LET SPECTRA FOR IRRADIATION OF BIOLOGICALLY SIGNIFICANT MATERIALS BY NEUTRONS
CALCULATION OF CHARGED-PARTICLE FLUENCE AND LET SPECTRA FOR IRRADIATION OF BIOLOGICALLY SIGNIFICANT MATERIALS BY NEUTRONS
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DOI：
10.1088/0031-9155/20/3/004
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发表时间：
1975-01-01
影响因子：
3.5
通讯作者：
DENNIS, JA
中科院分区：
文献类型：
--
作者：
EDWARDS, AA;DENNIS, JA
考虑了14.7 MeV中子、252 Cf中子谱和回旋加速器产生的中子谱辐照水、组织等效塑料和标准人体组织，并给出了所有这些情况的结果。根据对目标成分的了解，以及氢、碳、氮和氧元素中所有可能的中子诱导反应的截面和动力学，计算二次粒子谱。结合靶内离子的停止功率数据，导出了线性能量传递过程中带电粒子的通量谱和剂量分布。计算的二次量是克尔玛、按核弹性散射展开的能量、比电离和平均质量因子。停止能力来源于已公布的原子停止能力。
14.7 MeV neutrons, the 252 Cf neutron spectrum and a cyclotron generated neutron spectrum are considered to irradiate water, tissue-equivalent plastic and standard man tissue and results are given for all these cases. From a knowledge of the target composition, and the cross-sections and kinetics of all the possible neutron induced reactions in the elements hydrogen, carbon, nitrogen and oxygen, the secondary particle spectrum is calculated. By combining with stopping power data for the ions in the target, the charged particle fluence spectra and dose distribution in linear energy transfer are derived. Secondary quantities computed are kerma, energy expanded as nuclear elastic scattering, specific ionization and mean quality factor. Stopping powers have been derived from published atomic stopping powers.