The study of time calibration for upgraded end cap TOF of BESIII

被引：121
|
作者：
Guo Y.-X. [1 ,2 ]
Sun S.-S. [1 ,2 ]
An F.-F. [1 ]
Yang R.-X. [3 ]
Zhou M. [1 ,2 ]
Wu Z. [1 ,4 ]
Dai H.-L. [1 ,4 ]
Heng Y.-K. [1 ,2 ,4 ]
Li C. [3 ,4 ]
Deng Z.-Y. [1 ]
Liu H.-M. [1 ]
Li W.-G. [1 ]
机构：
[1] Institute of High Energy Physics, Chinese Academy of Sciences, Beijing
[2] University of Chinese Academy of Sciences, Beijing
[3] University of Science and Technology of China, Hefei
[4] State Key Laboratory of Particle Detection and Electronics, Beijing
来源：
Radiation Detection Technology and Methods | 2017年 / 1卷 / 2期
关键词：
BESIII; MRPC; Time calibration; Time of flight;
D O I：
10.1007/s41605-017-0012-4
中图分类号：
学科分类号：
摘要：
Purpose: The end cap time of flight at Beijing Spectrometer is upgraded with multi-gap resistive plate chamber technology in order to improve the charged particle identification capability. The time-over-threshold is used for the time slewing correction instead of the signal amplitude. Methods: The correlation of the multi-peak time-over-threshold and the hit position along the strip of the charged particle is investigated. Implementation of the off-line data calibration method is discussed in detail. Results and conclusion: The overall time resolution for pions with momentum around 0.8 GeV/c is about 65 ps. © 2017, Institute of High Energy Physics, Chinese Academy of Sciences; China Nuclear Electronics and Nuclear Detection Society and Springer Nature Singapore Pte Ltd.
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