采用MRPC技术的BESIII ETOF升级系统
The upgrade system of BESIII ETOF with MRPC technology
摘要：
提出了利用多间隙电阻板室（MRPC）技术对北京谱仪III（BESIII）端盖飞行时间（ETOF）进行升级改造，以取代目前闪烁体+PMT的ETOF，使时间分辨力提高到80 ps以上，增强粒子识别能力，满足更高精度的物理要求。ETOF系统包括MRPC模块、前端电路（FEE）、时钟模块、快速控制板和时间数字转换模块（TDIG），分别进行了设计、搭建和实验测试。为了检查整个ETOF系统的质量并培训所有参与部分的操作，在实验室建立了宇宙射线测试系统，并进行了约三个月的性能保证。本文给出的结果表明，整个ETOF系统运行良好，满足升级的要求。
英文摘要：
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.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
