Upgrade to the front-end electronics of the BESIII muon identification system

分类： 核科学技术 >> 核探测技术与核电子学 提交时间： 2023-06-18 合作期刊: 《Nuclear Science and Techniques》

XI Jian-Bo LIANG Hao XIANG Shi-Tao GUO Di ZHOU Jin-Jin LI Yu-Ying LI Yang LIU Han-Chao ZHOU Yong-Zhao LI Chun-Hua ZHANG Jia-Wen CHEN Jin HE Kang-Lin ZHU Ke-Jun

摘要： Resistive Plate Chambers (RPCs) built from a new type of Bakelite developed at Institute of High Energy Physics (IHEP), Chinese Academy of Sciences have been used in the BESIII Muon identification system for several years without linseed oil coating, but characteristic aging performances were observed. To adapt to the RPCs in the aging state, the front-end electronics have been upgraded by enhancing the front-end protection, improving the threshold setting circuit, and separating power supplies of the comparator and the field programmable gate array (FPGA). Improvements in system stability, front-end protection and threshold consistency have been achieved. In this paper, the system upgrade and the test results are described in detail.

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