CsI(Tl)/plastic phoswich detector enhanced in low-energy gamma-ray detection

被引：5
|
作者：
Yamasoto, K [1 ]
Tsutsumi, M [1 ]
Oishi, T [1 ]
Yoshizawa, M [1 ]
Yoshida, M [1 ]
机构：
[1] Japan Atom Energy Res Inst, Dept Hlth Phys, Tokai, Ibaraki 3191195, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2005年 / 550卷 / 03期
关键词：
large-area plastic scintillation detector; low-energy region; thin plate CsI(Tl) scintillator; phoswich detector; rise-time discrimination technique; minimum detectable activity;
D O I：
10.1016/j.nima.2005.05.054
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A phoswich detector composed of a thin plate CsI(TI) scintillator and a plastic scintillator (BC-400) has been designed and evaluated in order to improve the sensitivity in the low-energy region of a large-area plastic scintillation detector. This newly designed phoswich detector can be applied to both gross gamma measurement and energy spectrometry for low-energy gamma-ray emitters. Judging by estimations of minimum detectable activity, the lower measurable energy of a large-area plastic scintillation detector can be expanded down to a few tens of keV by adding a thin plate CsI(TI) scintillator. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：609 / 615
页数：7
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