Fabrication and performance characteristics of a CsI(Tl)/PIN diode radiation sensor for industrial applications

被引:11
作者
Kim, Han Soo [2 ]
Ha, Jang Ho [2 ]
Park, Se Hwan [2 ]
Cho, Seung Yeon [3 ]
Kim, Yong Kyun [1 ]
机构
[1] Hanyang Univ, Dept Nucl Engn, Seoul 133791, South Korea
[2] Korea Atom Energy Res Inst, Taejon 305353, South Korea
[3] Yonsei Univ, Dept Environm Engn, Wonju 220710, South Korea
关键词
CsI(Tl); PIN diode; Photon counting; Gamma rays; NDT; DETECTOR;
D O I
10.1016/j.apradiso.2009.02.042
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
CsI(Tl)/PIN diode radiation sensors were fabricated for application in various fields such as an NDT and an environmental radiation monitoring system. CsI(Tl) crystals of 11 x 11 x 21 mm(3) were processed as optical grade from a CsI(Tl) ingot and matched with PIN diodes in consideration of the light loss and the external impact. The photodiode signal is amplified by a low-noise preamplifier and a pulse shape amplifier. At room temperature, the fabricated CsI(Tl)/PIN diode radiation sensors demonstrate an energy resolution of 7.9% for 660 keV gamma rays and 4.9% for 1330 keV. The fluctuation of the directional dependency was below 14% from 0 to 90 degree for the incident 660 keV gamma rays. The compactness, the low-voltage power supply and the physical hardness are very useful features for industrial applications of the fabricated CsI(Tl)/PIN diode sensor. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1463 / 1465
页数:3
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