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arXiv · 2205.01822

Study of Hybrid MicroPattern Gas Detector with CsI Photocathode For Super Tau-Charm Factory RICH

Ping Li·Qian Liu·Jianbei Liu·Ming Shao·Zhiyong Zhang·Jianxin Feng·Anqi Wang·Baolin Hou·Lei Zhao·Hongbang Liu
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Abstract

Super tau-Charm facility(STCF) is a future electron-position collider operating at tau-Charm energy region aimed to study hadron structure and spectroscopy. The baseline design of the STCF barrel particle identification(PID) detector in the momentum range up to 2 GeV/c is provided by a Ring Imaging Cherenkov Counter(RICH). The architecture of the RICH is an approximately focusing design with liquid perfluorohexane sealed in the quartz container as radiator and a hybrid combination of a CsI coated layers of THGEMs and a Micromegas as the photo-electron detector. A 16*16 cm^2 prototype with quartz radiator has been built and tested at DESY. It was stably operated with 10^5 effective gain. In this paper, the design, the performance, the reconstruction algorithm and the systematic error for single photon electron angular resolution in the aspect of RICH detectors are discusses.

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Ping Li, Qian Liu, Jianbei Liu, Ming Shao, Zhiyong Zhang, Jianxin Feng, Anqi Wang, Baolin Hou, Lei Zhao, Hongbang Liu. 2022-05-04. Study of Hybrid MicroPattern Gas Detector with CsI Photocathode For Super Tau-Charm Factory RICH. https://doi.org/10.1088/1748-0221%2F18%2F04%2Fp04028

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