Method for improving the time resolution of TOF system

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LI Shao-Li, HENG Yue-Kun, ZHAO Tian-Chi, FU Zai-Wei, LIU Shu-Lin, QIAN Sen, LIU Shu-Dong, CHEN Xiao-Hui, JIA Ru, HUANG Guo-Rui and LEI Xiang-Cui. Method for improving the time resolution of TOF system[J]. Chinese Physics C, 2013, 37(1): 016003. doi: 10.1088/1674-1137/37/1/016003
LI Shao-Li, HENG Yue-Kun, ZHAO Tian-Chi, FU Zai-Wei, LIU Shu-Lin, QIAN Sen, LIU Shu-Dong, CHEN Xiao-Hui, JIA Ru, HUANG Guo-Rui and LEI Xiang-Cui. Method for improving the time resolution of TOF system[J]. Chinese Physics C, 2013, 37(1): 016003.  doi: 10.1088/1674-1137/37/1/016003 shu
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Received: 2012-02-28
Revised: 2012-05-07
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Method for improving the time resolution of TOF system

    Corresponding author: LI Shao-Li,
    Corresponding author: HENG Yue-Kun,

Abstract: In order to study the possibility of improving the timing performance of the time of flight (TOF) systems, which are made of plastic scintillator counters, and read out by photomultiplier tubes (PMT) with mesh dynodes and conventional electronics, we have conducted a study using faster PMTs and ultra fast waveform digitizers to read out the plastic scintillators. Different waveform analysis methods are used to calculate the time resolution of such a system. Results are compared with the conventional discriminating method based on a threshold and pulse height. Our tests and analysis show that significant timing performance improvements can be achieved by using this new system.

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