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The study of time-resolved measurement using ICCD positioning cosmic rays

Lü Qi-Wen, Zheng Yang-Heng, Tai Cai-Xing, Liu Fu-Hu, Cai Xiao, Fang Jian, Gao Long, Ge Yong-Shuai, Liu Ying-Biao, Sun Li-Jun, Sun Xi-Lei, Niu Shun-Li, Wang Zhi-Gang, Xie Yu-Guang, Xue Zhen, Yu bo-Xiang, Zhang Ai-Wu, Hu Tao, Lü Jun-Guang
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  • Received Date:  02 November 2011
  • Accepted Date:  05 April 2012
  • Published Online:  05 April 2012

The study of time-resolved measurement using ICCD positioning cosmic rays

  • 1. Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China;
  • 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
  • 3. Institute of High Energy Physics, CAS, Beijing 100049, China
Fund Project:  Project supported by the 100 Talents Project of Chinese Academy of Sciences, China and National Fundamental Fund of Personnel Training (Grant No. J1103210).

Abstract: Double layers of 150 mm?150 mm plastic scintillator arrays are used to locate the cosmic ray. Both layers of arrays are read out by wavelength-shifting fibers, which are bundled and coupled to image intensifier and ICCD camera. The light signal is delayed more than 200 ns by the image intensifier, so the ICCD can be pre-triggered by an external fast coincident signal. This cosmic ray positioning system is used to measure the time resolution and photon transfer time of the time-of-fly detector for the common test platform based on cosmic ray. Compared with traditional cosmic rays test, the data-taking efficiency of this system increases more than 30 times because of multi-point readout and higher position resolution. The test results show that the time resolution of the time-of-fly detector is better than 200 ps, which satisfies the requirement of the common platform based on cosmic ray.

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