Development of position sensitive radiation detectors using gas electron multipliers

被引：1
|
作者：
Park, Seongtae [1 ]
Hahn, Chang Hie [1 ]
机构：
[1] Changwon Natl Univ, Dept Phys, Chang Won 641773, South Korea
来源：
APPLIED RADIATION AND ISOTOPES | 2009年 / 67卷 / 7-8期
关键词：
GEM; Radiation detector; Digital imaging device; Readout electronics; Multi-channel readout; GEM DETECTORS; READOUT;
D O I：
10.1016/j.apradiso.2009.02.044
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Gas electron multipliers (GEM) were introduced to develop a radiation detector which is applicable to medical imaging or luggage inspection systems at the airport or harbor. Two GEM foils were used in the amplifier, and an Ar/CO2 mixed gas was inserted into the chamber at a mixing ratio of Ar:CO2 = 80:20. A two-dimensional X-ray image was taken with a 64-channel GEM detector from an Fe-55 radiation source. We also constructed a 256-channel GEM detector in which 4 charge sensitive preamplifiers were used in a daisy chain. With linear array type readout electrodes, we were able to realize a position sensitive radiation detector. (C) 2009 Elsevier Ltd. All rights reserved
引用
收藏
页码：1476 / 1478
页数：3
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