Design of a large-area CsI(Tl) photo-diode array for explosives detection by neutron-activation gamma-ray spectroscopy

被引：4

作者：

Evans, RJ ^{[1
]}

Jupp, ID ^{[1
]}

Lei, F ^{[1
]}

Ramsden, D ^{[1
]}

机构：

[1] Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1999年 / 422卷 / 1-3期

关键词：

fast neutron activation; gamma-ray imaging; detection of explosives; coded-aperture;

D O I：

10.1016/S0168-9002(98)01040-7

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A design for a large area, position-sensitive gamma-ray spectrometer for use in imaging explosive materials is described. The design has been optimised for use in the energy range from 2 to 12 MeV. At 5 MeV, the spectral resolution of each CsI(Tl)-photodiode pixel is better than 3% FWHM. The multi-element detector system, when used in conjunction with a coded-aperture mask, is able to provide a "multi-colour" image of the scene when illuminated by a neutron source. The feasibility of using such a system to identify the unique elemental composition and location of the explosive materials is discussed. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：900 / 905

页数：6