Design and optimization of resistive anode for a two-dimensional imaging GEM detector
Design and optimization of resistive anode for a two-dimensional imaging GEM detector
复制标题
二维成像GEM探测器电阻阳极的设计与优化
DOI：
10.1088/1674-1137/40/8/086004
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发表时间：
2016
影响因子：
3.6
通讯作者：
Qun Ou-Yang
中科院分区：
文献类型：
--
作者：
Xu-Dong Ju;Ming-Yi Dong;Yi-Chen Zhao;Chuan-Xing Zhou;Qun Ou-Yang
采用数值模拟和实验测试相结合的方法，研究了二维成像探测器电阻阳极的优化设计问题。研究发现，要获得良好的探测器性能，焊盘与探测条的电阻比应大于5，焊盘表面电阻率的不均匀性最好小于，焊盘宽度越小，空间分辨率越小，当焊盘宽度为时，空间分辨率（）可达到约。基于研究结果，构建了具有优化电阻阳极的二维GEM探测器原型，并取得了良好的成像性能。
The optimization of resistive anode for two dimensional imaging detectors which consists of a series of high resistive square pads surrounding by low resistive strips has been studied by both numerical simulations and experimental tests. It has been found that to obtain good detector performance, the resistance ratio of the pad to the strip should be larger than 5, the nonuniformity of the pad surface resistivity had better be less than, a smaller pad width leads to a smaller spatial resolution and when the pad width is, the spatial resolution () can reach about. Based on the study results, a 2-D GEM detector prototype with the optimized resistive anode is constructed and a good imaging performance is achieved.