Progress in MHSP electron multiplier operation

被引：0

作者：

Maia, JM ^{[1
]}

Mörmann, D ^{[1
]}

Breskin, A ^{[1
]}

Chechik, R ^{[1
]}

Veloso, JFCA ^{[1
]}

dos Santos, JMF ^{[1
]}

机构：

[1] Weizmann Inst Sci, IL-76100 Rehovot, Israel

来源：

2003 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORD, VOLS 1-5 | 2004年

关键词：

D O I：

暂无

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The Micro-Hole & Strip-Plate gas electron multiplier (MHSP) was studied as a stand-alone device or in combination with a cascade of Gas Electron Multipliers (GEMs), for x-ray and UV-photon detection. An MHSP operating in Ar/5%Xe yielded gains above 104 and energy resolutions of about 14% FWHM for 5.9-keV x-rays. Gains as high as 10(7) were reached in a 3GEM/MHSP gaseous photomultiplier operating in an Ar/5%CH4; the ion-backflow fraction to the top of the first GEM could be reduced down to similar to2%. 2D-imaging performed using signals induced by avalanche ions on a Wedge-and-Strip readout cathode, placed at close proximity of the anode strips yielded position resolutions of the order of 200 to 250mum FWHM for 5.9keV x-rays.

引用

页码：525 / 529

页数：5

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