A lightproof screen for time-projection chambers with large multiplicationcoefficients and photocathodes

Authors
Ovchinnikov, BM Parusov, VV Murashova, TA Popov, BA
Citation
Bm. Ovchinnikov et al., A lightproof screen for time-projection chambers with large multiplicationcoefficients and photocathodes, INSTR EXP R, 42(3), 1999, pp. 386-389
Citations number
5
Categorie Soggetti
Instrumentation & Measurement
Journal title
INSTRUMENTS AND EXPERIMENTAL TECHNIQUES
ISSN journal
00204412 → ACNP
Volume
42
Issue
3
Year of publication
1999
Pages
386 - 389
Database
ISI
SICI code
0020-4412(199905/06)42:3<386:ALSFTC>2.0.ZU;2-3
Abstract
A lightproof screen for time-projection chambers is described. It attenuate s the photon flux from the anode region to the drift, volume and is simulta neously transparent for ionization electrons drifting from the chamber volu me to the anode. The use of this screen in time-projection chambers with la rge electron multiplication coefficients or photocathodes makes it possible to eliminate the photon feedback effect, which results in the appearance o f afterpulses and breakdowns.