Radiation hard ceramic RPC development

[摘要] We report recent advances in R&D on the Beam Fragmentation and T0 Counter (BFTC) for the CBM experiment, based on RPCs with floating electrodes made of resistive ceramic material. An optimal value of the ceramics bulk resistivity has been determined to be about 5•109Ω•cm. RPCs with such electrodes show even characteristics and stable operation under particle fluxes of up to 150 kHz/cm2, with the detection efficiency above 90%.

[发布机构] Institute for Theoretical and Experimental Physics, Moscow, Russia^1;Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany^2

[效力级别] 天文学 [学科分类] 天文学(综合)

[关键词] Bulk resistivity;Detection efficiency;Floating electrodes;Optimal values;Particle fluxes;Radiation hard;Stable operation