对由氘核轰击铍产生的快中子束在组织等效材料中不同深度处的中子能谱进行测量。
Measurements of neutron spectra at depths in tissue equivalent material for fast neutron beams generated by deuterons on beryllium.
作者信息
Mountford P J, Thomas B J, Fremlin J H
出版信息
Br J Radiol. 1976 Jul;49(583):630-4. doi: 10.1259/0007-1285-49-583-630.
PMID:974462
Abstract
The threshold foil technique has been used to investigate the behaviour in tissue of the spectra of neutron beams produced by the bombardment of thick Be targets with 13-0 and 20-5 MeV deuterons. The results indicate a gradual "softening" with depth in tissue of the spectrum generated by 20-5 MeV deutrons which contrasts with a gradual hardening as reported by other authors. This is discussed in terms of the significance of field size and the methods used for data collection and analysis.
摘要
阈箔技术已被用于研究用13.0和20.5兆电子伏特氘核轰击厚铍靶产生的中子束在组织中的能谱行为。结果表明，20.5兆电子伏特氘核产生的能谱在组织中随深度逐渐“软化”，这与其他作者报道的逐渐硬化形成对比。本文从射野大小的意义以及数据收集和分析所采用的方法方面对此进行了讨论。
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