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arXiv 0712.2179physics.ins-det
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RICH电阻电极类GEM探测器的研究

Study of GEM-like detectors with resistive electrodes for RICH applications

A. G. Agocs, A. Di Mauro, A. Ben David, B. Clark, P. Martinengo, E. Nappi, V. Peskov

摘要:

我们已经开发出的原型的宝石类探测器与电阻电极被用作丰富的光电探测器配备碘化铯光电阴极。这些探测器的主要优点是其固有的火花保护和在许多气体(包括淬火不良的气体)中以高增益(~ 10 E5)工作的可能性,允许采用无窗配置,其中散热器气体也用于腔室中。本文介绍了电阻式GEM与CsI光电阴极组合探测器的量子效率、速率特性、长期稳定性等方面的系统研究结果。根据所获得的结果,我们认为这种新型探测器将是ALICE RICH探测器升级换代的一个有希望的候选者

英文摘要:

We have developed prototypes of GEM-like detectors with resistive electrodes to be used as RICH photodetectors equipped with CsI photocathodes. The main advantages of these detectors are their intrinsic spark protection and possibility to operate at high gain (~10E5) in many gases including poorly quenched ones, allowing for the adoption of windowless configurations in which the radiator gas is also used in the chamber. Results of systematic studies of the resistive GEMs combined with CsI photocathodes are presented: its quantum efficiency, rate characteristics, long-term stability, etc. On the basis of the obtained results, we believe that the new detector will be a promising candidate for upgrading the ALICE RICH detector

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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