所属单位：材料科学工程学院
教研室：物理教研室
发表刊物：Journal of Radioanalytical and Nuclear Chemistry
项目来源：国家自然科学基金项目
关键字：BNCT; thermalization efficiency; tungsten; fast neutron
摘要：In boron neutron capture therapy (BNCT), the proportion of the fast neutron in the tumor (PFN) must be no more than 3%. If a D-T neutron generator is used as a thermal neutron source in BNCT, the moderator must be optimized to decrease the PFN. Based on the analysis of the theory, water, heavy water, polythene, graphite, lead and tungsten were used to moderate the fast neutrons. If the three-layer material is composed of a 4 cm thickness layer of tungsten, a 13 cm thickness layer of lead and a 23 cm thickness layer of heavy water, its thermalization efficiency (TE) is highest, which is increased by 191.5% than the maximum TE moderated by single-layer materials and by 19.3% than the maximum TE moderated by double-layer materials.
第一作者：程道文
论文类型：期刊论文
卷号：292
期号：3
页面范围：1
字数：1
ISSN号：0236-5731
是否译文：否
发表时间：2012-03-01