Optical readout of a triple-GEM detector by means of a CMOS sensor
Optical readout of a triple-GEM detector by means of a CMOS sensor
复制标题
通过 CMOS 传感器对三重 GEM 探测器进行光学读出
DOI：
10.1016/j.nima.2015.11.058
复制
发表时间：
2016
影响因子：
1.4
通讯作者：
E. Spiriti
中科院分区：
文献类型：
--
作者：
M. Marafini;V. Patera;D. Pinci;A. Sarti;A. Sciubba;E. Spiriti
近年来，光学传感器的发展已经产生了能够提供非常有趣的性能的物体。沿着提供大粒度和极高的灵敏度。具有数百万像素的CMOS传感器能够检测每个像素少至两个或三个光子，并且可以用于读出由跟踪粒子检测器提供的光学信号。在这项工作中，通过光学读出的商业CMOS传感器的三重GEM探测器所获得的结果将被提交。标准检测器在第三GEM下方装配有透明窗口，允许光出去。该检测器被提供有Ar/CF 4基气体混合物，其产生与传感器的最大量子效率匹配的650 nm波长光子。
In last years, the development of optical sensors has produced objects able to provide very interesting performance. Large granularity is offered along with a very high sensitivity. CMOS sensors with millions of pixels able to detect as few as two or three photons per pixel are commercially available and can be used to read-out the optical signals provided by tracking particle detectors. In this work the results obtained by optically reading-out a triple-GEM detector by a commercial CMOS sensor will be presented. A standard detector was assembled with a transparent window below the third GEM allowing the light to get out. The detector is supplied with an Ar/CF4based gas mixture producing 650 nm wavelength photons matching the maximum quantum efficiency of the sensor.