^(10)B+Si快中子探测器设计  

Research on Optimal Design of Fast Neutron Detector Based on ^(10)B+Si

作　　者：夏广鹏 杜泽[2] 张雍[2] 朱光宇[2] 谢宏明 李志学 魏源[2,3] 顾可伟 宋睿[1,2] 景龙 XIA Guang-peng;DU Ze;ZHANG Yong;ZHU Guang-yu;XIE Hong-ming;LI Zhi-xue;WEI Yuan;GU Ke-wei;SONG Rui;JING Long(School of Nuclear Science and Technology,Lanzhou University,Lanzhou Gansu 730000,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou Gansu 730000,China;University of Chinese Academy of Sciences,beijing 100000,China)

机构地区：[1]兰州大学核科学与技术学院,甘肃兰州730000 [2]中国科学院近代物理研究所,甘肃兰州730000 [3]中国科学院大学,北京100000

出　　处：《核电子学与探测技术》2022年第2期274-279,共6页Nuclear Electronics & Detection Technology

基　　金：中国科学院西部之光基金(Y926030)资助。

摘　　要：介绍了一种基于^(10)B+Si的快中子探测器的设计.利用MCNPX软件对^(10)B+Si快中子探测器进行建模,并且对其探测器效率、几何参数、慢化材料进行了模拟计算,给出了含硼橡胶作为慢中子吸收层、聚乙烯作为慢化层、硼薄膜作为反射层的设计方案.模拟计算以及实测结果表明,该探测器可以满足质子加速器低能区的束损监测需求.This paper introduces the design of a fast neutron detector based on ^(10)B+Si.This fast neutron detector was modeled by MCNPX software,and its detector efficiency,geometric parameters,and slowing materials were simulated and calculated by it.As a result,a design scheme of boron rubber as the slow neutron absorption layer,polyethylene as the moderator layer,and boron film as the reflection layer is given.Simulation and actual measurement results show that the detector can meet the beam loss monitoring requirements in the low-energy region of the proton accelerator.

关 键 词：快中子探测 ^(10)B MCNPX模拟 质子加速器 

分 类 号：TL816.3[核科学技术—核技术及应用]