Development of digital imaging device based on the gas electron multiplier

被引:2
作者
Park, Seongtae [1 ]
Hahn, Chang Hie [1 ]
Ha, Youngja [1 ]
Ahn, Bongjae [1 ]
机构
[1] Changwon Natl Univ, Dept Phys, Chang Won 641773, South Korea
关键词
GEM; radiation detector; digital imaging device; readout electronics; multichannel readout;
D O I
10.1016/j.radmeas.2007.09.009
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
We fabricated a gas electron multiplier (GEM) for application to digital imaging devices such as X-ray or gamma-ray detectors. Sixty-four square (3 x 3 mm) copper pads were used to collect avalanched electron charge clusters from the GEM chamber. A 128-channel charge sensitive preamplifier, which also includes sample/hold amplifiers and a multiplexer, was used as the front end electronics of the readout circuits for data acquisition. With this system, we successfully took a two-dimensional digital image under the irradiation of the Fe-55 radiation source. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1661 / 1665
页数:5