Dynamic X-ray direct conversion detector using a CdTe polycrystalline layer coupled to a CMOS readout chip

被引:5
|
作者
Arques, Marc [2 ]
Renet, Sebastien [2 ]
Brambilla, Andrea [2 ]
Feuillet, Guy [2 ]
Gasse, Adrien [2 ]
Billon-Pierron, Nicolas [2 ]
Jolliot, Muriel [2 ]
Mathieu, Lydie [2 ]
Rohr, Pierre [1 ]
机构
[1] TRIXELL, F-38430 Moirans, France
[2] CEA LETI MINATEC, F-38054 Grenoble, France
关键词
CdTe; Close space sublimation; CMOS; X-ray;
D O I
10.1016/j.nima.2010.06.120
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A direct detection X-ray imager is presented. It uses polycrystalline cadmium telluride (CdTe) grown by close space sublimation technique for the X-ray photoconductor. A 15 mm x 15 mm CdTe layer is connected to a 200 x 200 pixel readout CMOS by indium bumping. X-ray performance at 16 frames/s rate is measured. In particular a readout noise of 0.5 X-ray, an MTF of 50% at 4 lp/mm and a DQE of 20% at 4 lp/mm are obtained. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:S55 / S58
页数:4
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