Design of a shielding collimator device for a small-angle monoenergetic neutron source

作     者：Wen-Hui Lü Hui-Ping Guo Ning Lü Kuo Zhao Xiao-Tian Wang Yi-Jie Hou 

作者机构：Xi'an Research Institute of Hi-TechXi'an 710025China Key Laboratory of Particle and Radiation Imaging(Ministryof Education)and Department of Engineering PhysicsTsinghua UniversityBeijing 100083China 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2018年第29卷第8期

页      码：201-209页

摘      要：To obtain a small-angle monoenergetic neutron source,a shielding collimator device is designed for the neutron source generated by a neutron *** device is divided into the collimator and the capture *** collimator is made of three layers of stainless steel and borated polyethylene and is used to constrain neutrons in a small *** capture cave is used to increase the number of times neutron inelastic scattering occurs in the opposite direction of the radiation field,thereby reducing the proportion of scattered neutrons in the radiation *** thickness,aperture size,and the optimum structure of the capture cave were simulated using *** design features a neutron emission angle within a range of 3° and neutron fluxes in the radiation field,which are higher by two orders of magnitude than those outside the radiation *** research has practical value for the generation of monoenergetic small-angle neutron sources and neutron applications.

主 题 词：小角度 中子 设备 设计 防护 不锈钢 聚乙烯 俘获 

学科分类：08[工学] 0827[工学-食品科学与工程类] 082701[082701] 

核心收录：

D　O　I：10.1007/s41365-018-0455-4

馆 藏 号：203317281...