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Proceedings Paper

A method for calibrating PMTs in T0 system for beam test
Author(s): Sen Qian; Zaiwei Fu; Zhe Ning; Zhigang Wang; Shuai Yang; Yifang Wang; Yuekun Heng; ShuDong Liu; Jiawen Zhang; Ming Qi; Yangheng Zhen; Cheng Li
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Paper Abstract

In order to study the performance of MRPC, which will be used for the upgrade of the Endcap TOF in BES III, a T0 system is composed of high speed response PMTs H6533 coupling with BC420 plastic scintillators. Because the T0 system should offer a toughly strict timing start, the high precision electronics based on VME system were used to test the SPS (single-photoelectron spectrum) of H6533 PMT. A suitable operation voltage for optimal performance is confirmed by researching the dependence relationship between the PMT gain and energy resolution of SPS (single-photoelectron spectrum). At the end, the timing resolution of this type of T0 system was 41.6 ps in the cosmic ray test and 39.1 ps in the proto beam test.

Paper Details

Date Published: 15 October 2010
PDF: 9 pages
Proc. SPIE 7847, Optoelectronic Devices and Integration III, 784708 (15 October 2010); doi: 10.1117/12.871692
Show Author Affiliations
Sen Qian, Institute of High Energy Physics (China)
Zaiwei Fu, Institute of High Energy Physics (China)
Nanjing Univ. (China)
Zhe Ning, Institute of High Energy Physics (China)
Graduate Univ. of the Chinese Academy of Sciences (China)
Zhigang Wang, Institute of High Energy Physics (China)
Shuai Yang, Univ. of Science and Technology of China (China)
Yifang Wang, Institute of High Energy Physics (China)
Yuekun Heng, Institute of High Energy Physics (China)
ShuDong Liu, Institute of High Energy Physics (China)
Jiawen Zhang, Institute of High Energy Physics (China)
Ming Qi, Nanjing Univ. (China)
Yangheng Zhen, Graduate Univ. of the Chinese Academy of Sciences (China)
Cheng Li, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7847:
Optoelectronic Devices and Integration III
Xuping Zhang; Hai Ming; Alan Xiaolong Wang, Editor(s)

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