Layered shielding design for an active neutron interrogation system

被引：3
|
作者：
Whetstone, Zachary D. [1 ]
Kearfott, Kimberlee J. [1 ]
机构：
[1] Univ Michigan, Dept Nucl Engn & Radiol Sci, 2355 Bonisteel Blvd,1943 Cooley Bldg, Ann Arbor, MI 48109 USA
来源：
RADIATION PHYSICS AND CHEMISTRY | 2016年 / 125卷
关键词：
Active neutron interrogation; Radiation shielding; Neutron detection; Gamma ray detection; Portable shielding; Shielding simulations; EXPLOSIVES-DETECTION; ATTENUATION; SCATTER; STEEL;
D O I：
10.1016/j.radphyschem.2016.03.018
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The use of source and detector shields in active neutron interrogation can improve detector signal. In simulations, a shielded detector with a source rotated pi/3 rad relative to the opening decreased neutron flux roughly three orders of magnitude. Several realistic source and detector shield configurations were simulated. A layered design reduced neutron and secondary photon flux in the detector by approximately one order of magnitude for a deuterium-tritium source. The shield arrangement can be adapted for a portable, modular design. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：69 / 74
页数：6
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