Physics – Instrumentation and Detectors
Scientific paper
2012-03-16
Physics
Instrumentation and Detectors
Presented at the XI International RPC Workshop, Frascati, Italy, February 2012 and at RD-51 meetings at CERN in November 2011
Scientific paper
Two new designs of micropattern gaseous detectors with resistive electrodes are introduced: the microdot-microhole detector and the microgap-microstrip-RPC. These novel detectors have several important advantages over the conventional micropattern detectors with metallic electrodes like GEM and MICROMEGAS. For example, the proposed detectors feature higher values of maximum achievable gas gains, a simpler layout with fewer components, a simpler production technique and cost effectiveness. Our studies have revealed many interesting features of such detectors, for example, adopting proper gas mixtures, the microdot detector can operate in self quenched streamer mode and at higher voltages in streamer mode similarly to RPCs. These resistive microstrip/microdot detectors can be used in many applications, like noble liquid dual phase TPCs, TOF-PET, high time resolution muon trackers and so on.
Fonte P.
Martinengo P.
Nappi Eugenio
Oliveira Roberto
Peskov V.
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