Feedback and breakdowns in microstrip gas counters


Peskov V., Ramsey B., Kolodziejczak J., Fonte P.

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, vol.397, no.2-3, pp.243-260, 1997 (SCI-Expanded) identifier identifier identifier

Abstract

The phenomena of feedback and breakdowns in microstrip gas counters have been studied. Tests have been performed on a wide variety of microstrips of different geometries and substrates in various gas mixtures and at several pressures. In addition, for direct comparison, similar microstrip gas counters without substrates were also investigated. In the case of ''conventional'' microstrip detectors on substrates, it was found that as maximum gains were approached, self-quenched streamers occurred, but that these were present only over a very narrow voltage range after which they rapidly transited to gliding-discharge-type breakdown sparks.