BNCT中14 MeV中子慢化体的研究  

Study on 14 MeV neutron moderators in BNCT

作　　者：许海龙 薛荣 李鑫[2] 程道文 XU Hai-long;XUE Rong;LI Xin;CHENG Dao-wen(School of Materials Science and Engineering,Changchun University of Technology,Changchun 130012,China;Applied Technology Institute,Changchun University of Technology,Changchun 130012,China)

机构地区：[1]长春工业大学材料科学与工程学院,吉林长春130012 [2]长春工业大学应用技术学院,吉林长春130012

出　　处：《东北师大学报（自然科学版）》2022年第2期85-88,共4页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(11305019);吉林省教育厅“十三五”科学技术研究项目(JJKH20200687KJ)。

摘　　要：为提高硼中子俘获治疗中14 MeV中子的热化效率,用MCNP程序模拟研究了单层、双层以及三层中子慢化体.研究结果显示,钨、铅、氘代聚乙烯厚度分别为6,18,20 cm时组成的三层中子慢化体的热化效率最高,比单层中子慢化体最大热化效率高124.55%,比双层中子慢化体最大热化效率高13.29%.In order to increase the thermal efficiency(TE) of 14 MeV neutrons in boron neutron capture therapy(BNCT),the single-layer, double-layer and three-layer neutron moderators were studied by MCNP program.The calculation results show that the thermal efficiency of the three-layer neutron moderator composed of a 6 cm thickness layer of tungsten, a 18 cm thickness layer of lead and a 20 cm thickness layer of deuterated polyethylene is highest, which is increased by 124.55% than the maximum TE moderated by single-layer neutron moderator and by 13.29% than that of double-layer neutron moderator.

关 键 词：BNCT 热化效率 氘代聚乙烯 14 MeV中子 

分 类 号：O571.53[理学—粒子物理与原子核物理]