Charge transfer properties through graphene for applications in gaseous detectors

被引：9

作者：

Franchino, S. ^{[1
]}

Gonzalez-Diaz, D. ^{[1
]}

Hall-Wilton, R. ^{[2
]}

Jackman, R. B. ^{[3
,4
]}

Muller, H. ^{[1
]}

Nguyen, T. T. ^{[3
,4
]}

de Oliveira, R. ^{[1
]}

Oliveri, E. ^{[1
]}

Pfeiffer, D. ^{[1
,2
]}

Resnati, F. ^{[1
,2
]}

Ropelewski, L. ^{[1
]}

Smith, J. ^{[3
,4
]}

van Stenis, M. ^{[1
]}

Streli, C. ^{[5
]}

Thuiner, P. ^{[1
,5
]}

Veenhof, R. ^{[1
,6
]}

机构：

[1] CERN, European Org Nucl Res, CH-1211 Geneva 23, Switzerland

[2] European Spallat Source, Tunavagen 24, S-22363 Lund, Sweden

[3] UCL, London Ctr Nanotechnol, 17-19 Gordon St, London WC1H 0AH, England

[4] UCL, Dept Elect & Elect Engn, 17-19 Gordon St, London WC1H 0AH, England

[5] Vienna Univ Technol, Atominst, Stad Allee 2, A-1020 Vienna, Austria

[6] Uludag Univ, Dept Phys, TR-16059 Bursa, Turkey

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2016年 / 824卷

基金：

英国工程与自然科学研究理事会;

关键词：

Graphene; Micro-Pattern Gaseous Detectors; GEM; Ion back-flow; GEM;

D O I：

10.1016/j.nima.2015.11.077

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Graphene is a single layer of carbon atoms arranged in a honeycomb lattice with remarkable mechanical and electrical properties. Regarded as the thinnest and narrowest conductive mesh, it has drastically different transmission behaviours when bombarded with electrons and ions in vacuum. This property, if confirmed in gas, may be a definitive solution for the ion back-flow problem in gaseous detectors. In order to ascertain this aspect, graphene layers of dimensions of about 2 x 2 cm(2), grown on a copper substrate, are transferred onto a flat metal surface with holes, so that the graphene layer is freely suspended. The graphene and the support are installed into a gaseous detector equipped with a triple Gaseous Electron Multiplier (GEM), and the transparency properties to electrons and ions are studied in gas as a function of the electric fields. The techniques to produce the graphene samples are described, and we report on preliminary tests of graphene-coated GEMs. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.

引用

页码：571 / 574

页数：4

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