A new glass GEM with a single-sided guard-ring structure
A new glass GEM with a single-sided guard-ring structure
复制标题
一种新型单面护环结构玻璃GEM
DOI：
10.1080/00223131.2014.884954
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发表时间：
2014
影响因子：
1.2
通讯作者：
et al.
中科院分区：
文献类型：
--
作者：
Yuki Mitsuya;Takeshi Fujiwara;Hiroyuki Takahashi;et al.
气体电子倍增器（GEM）是一种广泛应用于许多领域的气体检测器。我们的玻璃GEM（G-GEM）包括可光蚀刻玻璃（PEG 3，HOYA Corporation，日本）。我们的研究表明，与其他气体探测器相比，它显示出上级性能。本文介绍了一种新型的G-GEM。它有一个保护环结构的孔周围，以提高火花容忍通过减少每个孔结构的总电容。在气体流动模式下，使用Ar（90%）和CH 4（10%）的气体混合物，这种具有单侧保护环结构的新G-GEM获得了约7500的测量气体增益。能量分辨率为17.3%（FWHM）也实现了与准直6 keV的X射线束。还示出了10至12小时气体增益稳定性测量的结果。
The gas electron multiplier (GEM) is a gaseous detector that is widely used in many applications. Our glass GEM (G-GEM) comprises a photo-etchable glass (PEG3, HOYA Corporation, Japan). Our research indicated that it shows superior performance compared with other gas detectors. In this article, a new type of G-GEM is introduced. It has a guard-ring structure around the holes in order to improve the spark tolerance by reducing the total capacitance of each hole structure. A measured gas gain of approximately 7500 is attained for this new G-GEM with a single-sided guard-ring structure using a gas mixture of Ar (90%) and CH4(10%) in the gas flow mode. An energy resolution of 17.3% (FWHM) is also achieved with a collimated 6 keV X-ray beam. The results of a 10 to 12 hour gas gain stability measurements are also shown.