Studies of timing properties for a TOF counter at an external target facility

Timing and amplitude properties of a prototype scintillator TOF counter at an external target facility are studied with a cosmic rays test. The dependence of signal pulse height and time resolution on the coordinate along the scintillator TOF counter is investigated with two different discriminators. A time resolution of 165 ps can be achieved at the center of the counter with a constant fraction discriminator. Time resolution better than 150 ps is obtained at the center with a leading edge discriminator after time walk correction is applied for off-line analysis.

作 者： YU Yu-Hong XU Hua-Gen XU Hu-Shan ZHAN Wen-Long SUN Zhi-Yu GUO Zhong-Yan HU Zheng-Guo CHEN Jun-Ling TANG Shu-Wen   作者單位： YU Yu-Hong,XU Hu-Shan,TANG Shu-Wen(Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China)

XU Hua-Gen,ZHAN Wen-Long,SUN Zhi-Yu,GUO Zhong-Yan,HU Zheng-Guo,CHEN Jun-Ling(Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China) 

刊 名： 中國物理C（英文版）  ISTIC 英文刊名： CHINESE PHYSICS　C  年，卷(期)： 2009 33(9)  分類號(hào)： O4  關(guān)鍵詞： external target facility   scintillator   discriminator   time resolution  

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