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

页码：69 / 74

页数：6

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