Progress in developing hybrid RPC: GEM-like detectors with resistive electrodes


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Fonte P., Martinengo P., Nappi E., Oliveira R., Peskov V.

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, cilt.602, sa.3, ss.850-853, 2009 (SCI-Expanded) identifier identifier identifier

Özet

We have recently developed an innovative detector of photons and charged particles: a GEM-like gaseous amplification structure with resistive electrodes instead of commonly used metallic ones. This novel detector combines the best property of GEMs-the capability to operate in a cascaded mode and in poorly quenched gases-and of RPC: the protection against sparks. This paper will shortly review our latest achievements in this direction, however the main focus will be given on a new advanced design that allows to build large-area detectors (currently 15 x 20 cm(2)) manufactured by a screen printing technology. The proposed detector, depending on the applications, can operate either in a GEM mode (electron multiplications through holes only) or as a hybrid RPC with simultaneous amplifications in the drift region and in the holes. The possible applications of this new detector will be discussed. (C) 2008 Elsevier B.V. All rights reserved.