Subjects: Nuclear Science and Technology >> Nuclear Detection Technology and Nuclear Electronics submitted time 2023-06-18 Cooperative journals: 《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
Abstract： 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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