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arXiv 1405.2115physics.ins-dethep-ex
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高时间分辨MRPC不同读出方式的测试

Test of High Time Resolution MRPC with Different Readout Modes

S. Yang, Y. J. Sun, C. Li, Y. K. Heng, S. Qian, H. F. Chen, T. X. Chen, H. L. Dai, H. H. Fan, S. B. Liu, S. D. Liu, X. S. Jiang, M. Shao, Z. B. Tang, H. Zhang, Z. G. Zhao

摘要:

为了进一步提高北京谱仪(BESIII)的粒子识别能力,提出了用多间隙电阻板室(MRPC)对现有的端盖飞行时间(eTOF)探测器进行升级改造。样机连同前端电子学(FEE)和时间数字化(TDIG)模块在北京正负电子对撞机(BEPCII)E3线上进行了测试,以研究单端和双端读出MRPC设计之间的差异。单端读出MRPC的时间分辨率(σ)为47/53 ps(600 MeV/c质子/π介子束),而双端读出MRPC的时间分辨率(σ)为40 ps(质子束)。用质子束和π介子束对三个MRPC组件的效率进行了测试,结果均优于98%。对于双端读出MRPC,没有观察到入射位置依赖性。

英文摘要:

In order to further enhance the particle identification capability of the Beijing Spectrometer (BESIII), it is proposed to upgrade the current end-cap time-of-flight (eTOF) detector with multi-gap resistive plate chamber (MRPC). The prototypes, together with the front end electronics (FEE) and time digitizer (TDIG) module have been tested at the E3 line of Beijing Electron Positron Collider (BEPCII) to study the difference between the single and double-end readout MRPC designs. The time resolutions (sigma) of the single-end readout MRPC are 47/53 ps obtained by 600 MeV/c proton/pion beam, while that of the double-end readout MRPC is 40 ps (proton beam). The efficiencies of three MRPC modules tested by both proton and pion beam are better than 98%. For the double-end readout MRPC, no incident position dependence is observed.

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。

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