RPC with low-resistive phosphate glass electrodes as a candidate for the CBM TOF

Usage of electrodes made of glass with low bulk resistivity seems to be a promising way to adapt the Resistive Plate Chambers (RPC) to the high-rate environment of the upcoming CBM experiment. A pilot four-gap RPC sample with electrodes made of phosphate glass, which has bulk resistivity in the orde...

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Bibliographic Details
Published in:arXiv.org 2006-12
Main Authors: Akindinov, A, Ammosov, V, Gapienko, V, Yu Grishuk, Guber, F, Herrmann, N, Karavichev, O, Kiselev, S, Maevskaya, A, Razin, V, Semak, A, Smirnitskiy, A, Sviridov, Yu, Tiflov, V, Voloshin, K, Zaets, V, Zagreev, B
Format: Article
Language:English
Subjects:
Electrical resistivity
Electrodes
Glass
Glass electrodes
Phosphate glass
Resistive plate chambers
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Summary:Usage of electrodes made of glass with low bulk resistivity seems to be a promising way to adapt the Resistive Plate Chambers (RPC) to the high-rate environment of the upcoming CBM experiment. A pilot four-gap RPC sample with electrodes made of phosphate glass, which has bulk resistivity in the order of 10^10 Ohm cm, has been studied with MIP beam for TOF applications. The tests have yielded satisfactory results: the efficiency remains above 95% and the time resolution stays within 120 ps up to the particle rate of 18 kHz/cm2. The increase in rate from 2.25 to 18 kHz/cm2 leads to an increase of estimated "tails" fraction in the time spectrum from 1.5% to 4%.
ISSN:2331-8422
DOI:10.48550/arxiv.0612083