Coated photocathodes for visible photon imaging with gaseous photomultipliers

Authors
Shefer, E Breskin, A Chechik, R Buzulutskov, A Singh, BK Prager, M
Citation
E. Shefer et al., Coated photocathodes for visible photon imaging with gaseous photomultipliers, NUCL INST A, 433(1-2), 1999, pp. 502-506
Citations number
16
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
502 - 506
Database
ISI
SICI code
0168-9002(19990821)433:1-2<502:CPFVPI>2.0.ZU;2-Z
Abstract
We report on our latest results of K-Cs-Sb visible photocathodes, coated wi th thin CsI and CsBr protective films, for applications within gas avalanch e photomultipliers. Data on the sensitivity to exposure to oxygen and moist ure is presented, as well as on the stability under gas multiplication and aging under gas avalanche. There are good indications that the protected ph otocathodes can withstand long-term multiplication mode, with low-level imp urity gases. possible applications are discussed. (C) 1999 Elsevier Science B.V. All rights reserved.