Carbon coated gas electron multipliers

Authors
Beirle, S Werthenbach, U Zech, G Zeuner, T
Citation
S. Beirle et al., Carbon coated gas electron multipliers, NUCL INST A, 423(2-3), 1999, pp. 297-302
Citations number
12
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
423
Issue
2-3
Year of publication
1999
Pages
297 - 302
Database
ISI
SICI code
0168-9002(19990301)423:2-3<297:CCGEM>2.0.ZU;2-5
Abstract
Gas electron multipliers (GEMs) have been overcoated with a high resistivit y 10(14)-10(15) Omega/square amorphous carbon layer. The coating avoids cha rging up of the holes and provides a constant gain immediately after switch ing on independent of the rate. The gain uniformity across the GEM is impro ved. Coating opens the possibility to produce thick GEMs of very high gain. (C) 1999 Elsevier Science B.V. All rights reserved.