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arXiv 1602.07438physics.ins-dethep-ex
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二维成像三重GEM探测器电阻阳极的设计与优化

Design and optimization of resistive anode for a two-dimensional imaging triple-GEM detector

Xu-Dong Ju, Ming-Yi Dong, Yi-Chen Zhao, Chuan-Xing Zhou, Qun Ouyang

摘要:

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。结果表明,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$20\%$,焊盘宽度越小,空间分辨率越小,当焊盘宽度为$6mm$时,空间分辨率($σ$)可达$105μm$左右。在此基础上,利用优化后的电阻阳极结构设计了一个二维GEM探测器样机,并取得了良好的成像性能。

英文摘要:

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 $20\%$, a smaller pad width leads to a smaller spatial resolution and when the pad width is $6mm$, the spatial resolution ($σ$) can reach about $105μm$. 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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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