Year: 2018
Type: article
Abstract: Towards the future CMS RPC upgrade, a real-size mosaic high-rate MRPC has been designed and developed by Tsinghua University. The prototype is a 5-gap counter composed of the low-resistive glass. Because the maximum size of this glass cannot exceed 330 × 280 mm 2 , 6 regions of glass stacks are mosaicked together in order to achieve a large active area. This prototype was tested in HZDR-ELBE with 30 MeV e-beam. It shows an efficiency above 95% at the rate of 2 kHz/cm 2 . The time resolution is around 55 ps, and the cluster size is below 1.5. The performance is almost unaffected by increasing the rate to 11 kHz/cm 2 . This design is proved to be fully capable of the CMS upgrade requirement by this HZDR beam test. The mosaic technology will make the high-rate MRPC a good choice in large-area timing systems.
Source: Journal of Instrumentation
Authors: P. Lyu, D. Han, Y. Wang, B. Guo, F. Wang, X. Chen, Y. Yu, Y. Li, L. Naumann, A. Lazo Garcia, D. Stach, X. Fan
Institutions: Tsinghua University, Helmholtz-Zentrum Dresden-Rossendorf
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2809604697