High rate X-ray imaging using multi-GEM detectors with a novel readout design
High rate X-ray imaging using multi-GEM detectors with a novel readout design
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DOI：
10.1016/s0168-9002(01)01719-3
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发表时间：
2002-02-01
影响因子：
1.4
通讯作者：
Schulte, E
中科院分区：
文献类型：
--
作者：
Bachmann, S;Kappler, S;Schulte, E
现代微图形气体计数器能够以高空间分辨率探测软X射线。这种探测器基于气体放大原理，具有较宽的动态范围，并在图像重建过程中提供能量选择。最新的发展之一是MultiGEM，这是一种高效、高速的微图案气体探测器。由于气体放大和读出阶段的分离，这种探测器在读出结构的几何形状上具有很高的灵活性。通过二维投影读出，GEM探测器在提供小型哺乳动物的X射线吸收X射线照片方面表现出了良好的能力。我们提出了一种具有新颖设计的探测器，其中读出板由连接到三层条带的微焊盘组成，使得二维空间重建和具有多个命中的事件的明确分辨率成为可能。(C)2002 Elsevier Science B，V.保留所有权利。
Modern micropattern gas counters are able to detect soft X-rays with high spatial resolution. Based on the principle of gas amplification, this detector type has a wide dynamic range and provides energy selection during image reconstruction. One of the most recent developments is the Multi-GEM, an efficient, high-rate capable micropattern gas detector. Owing to the separation of gas amplification and readout stage, this detector allows high flexibility in the geometry of the readout structure.With a two-dimensional projective readout, GEM detectors have shown good capability in providing X-ray absorption radiographies of small mammals. We present a detector with a novel design where the readout board consists of micropads connected to three layers of strips in such a way that two-dimensional spatial reconstruction and an unambiguous resolution of events with multiple hits is possible. (C) 2002 Elsevier Science B,V. All rights reserved.