分类： 物理学 >> 核物理学 提交时间： 2016-09-05
Zhi Wu
Shengsen Sun
Yuekun Heng
Xiaozhuang Wang
Yongjie Sun
Cheng Li
Hongliang Dai
Ping Cao
Jie Zhang
Weijia Sun
Siyu Wang
Yun Wang
Xiaolu Ji
Jinzhou Zhao
Wenxuan Gong
Mei Ye
Xiaoyan Ma
Mingming Chen
Meihang Xu
Xiaolan Luo
摘要： The upgrade of the current BESIII Endcap TOF (ETOF) is carried out with the Multi-gap Resistive Plate Chamber (MRPC) technology. The installation of the new ETOF has been finished in October 2015. The first results of the MRPCs commissioning at BESIII are reported in this paper.
分类： 物理学 >> 核物理学 提交时间： 2016-09-01
Xiaozhuang Wang
Yongjie Sun
Cheng Li
Yuekun Heng
Zhi Wu
Ping Cao
Hongliang Dai
Xiaolu Ji
Wenxuan Gong
Zhen Liu
Xiaolan Luo
Weijia Sun
Siyu Wang
Yun Wang
Rongxing Yang
Mei Ye
Jinzhou Zhao
摘要： The Beijing Spectrometer III (BESIII) endcap Time-Of-Filght (ETOF) was proposed to upgrade with Multigap Resistive Plate Chamber (MRPC) technology to substitute the current ETOF of scintillator+PMT for extending time resolutin better than 80 ps and enhance the particle identification capability to satisfy the higher precision requirement of physics. The ETOF system including MRPC modules, front end electronics (FEE), CLOCK module, fast control boards and time to digital modules (TDIG), has been designed, constructed and done some experimental tests seperately. Aiming at examining the quality of entire ETOF system and training the operation of all participated parts, a cosmic ray test system was built at the laboratory and underwent about three months to guarantee performance. In this paper the results will be presented indicating that the entire ETOF system works well and satisfies the requirements of the upgrade.
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