Single photoelectron detection with a low-pressure gas electron multipliercoupled to a CsI photocathode

Authors
Garty, G Breskin, A Chechik, R Shefer, E
Citation
G. Garty et al., Single photoelectron detection with a low-pressure gas electron multipliercoupled to a CsI photocathode, NUCL INST A, 433(1-2), 1999, pp. 476-481
Citations number
5
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
433
Issue
1-2
Year of publication
1999
Pages
476 - 481
Database
ISI
SICI code
0168-9002(19990821)433:1-2<476:SPDWAL>2.0.ZU;2-0
Abstract
We have operated the Gas Electron Multiplier (GEM) coupled to a CsI photoca thode for the defection of single UV photons. Gains of up to 10 000 were ob served with a single CEM in pure hydrocarbons in the range 40-400 Torr. Usi ng a double-GEM structure, we have detected single photoelectrons on a stri p electrode. We have studied the single-electron detection efficiency of th e GEM, a crucial parameter in its operation in single-photon detection appl ications, both experimentally and by simulation. (C) 1999 Elsevier Science B.V. All rights reserved.