Author/Authors :
Akindinov، نويسنده , , A. and Ammosov، نويسنده , , V. and Gapienko، نويسنده , , V. and Grishuk، نويسنده , , Yu. and Guber، نويسنده , , Michael F. and Herrmann، نويسنده , , N. and Karavichev، نويسنده , , O. and Kiselev، نويسنده , , S. and Maevskaya، نويسنده , , A. and Razin، نويسنده , , V. and Semak، نويسنده , , A. and Smirnitskiy، نويسنده , , A. and Sviridov، نويسنده , , Yu. and Tiflov، نويسنده , , Anatoly V. and Voloshin، نويسنده , , K. and Zaets، نويسنده , , V. and Zagreev، نويسنده , , B.، نويسنده ,
Abstract :
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 Ω 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%.
Keywords :
High rate , Multi-gap RPC , TOF , Time resolution , Bulk resistivity
