Effect of Scintillator Wrapping Materials on Performance of TOF Counter

WANG Feng-Mei; HENG Yue-Kun; YANG Lei; WU Chong; ZHAO Xiao-Jian; SUN Zhi-Jia; WU Jin-Jie; ZHAO Li; ZHAO Yu-Da; JIANG Lin-Li

Chinese Physics C> 2006, Vol. 30> Issue(8) : 776-779

Effect of Scintillator Wrapping Materials on Performance of TOF Counter

Zhengzhou University, Zhengzhou 450052, China2 Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, China3 Dongguan University of Technology, Dongguan 523808, China4 University of Science and Technology of China, Hefei 230026, China5 Nanjing University, Nanjing 210039, China

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Abstract：
Characteristics of time of flight counter wrapped with five reflective materials: tyvek, teflon, millipore, ESR and Al film is studied by test beam at BEPC linear accelerator. It includes three aspects: the time resolution, the attenuation length and the effective speed of light. Al film wrapping can give the best time resolution of 95.6±2ps. ESR wrapping can give the biggest amplitude and longest attenuation length. The effective speed of light in the scintillator bar with these 5 different reflective materials is basically the same.

References

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. Preliminary Design Report of The BES Ⅲ Detector. Inter-nal Document, 2003. 119-133(in Chinese)(北京正负电子对撞机重大改造工程BEPCⅡ初步设计—BESⅢ探测器.内部资料,2003.119—133) 2. SUN Zhi-Jia, HENG Yue-Kun et al. HEP NP, 2005,29(10): 933-936(in Chinese)(孙志嘉,衡月昆等.高能物理与核物理,2005,29(10):933—936)3. USERS HANDBOOK BEPC-LINAC-TESTBEAM. Inter-nal Document, 2004, 3-13(in Chinese)(试验束使用者手册,内部资料,2004,3—13)4. CUI Xiang-Zong, LI Jia-Cai et al. HEP NP, 2004, 28(8):870-876(in Chinese)(崔象宗,李家才等.高能物理与核物理,2004,28(8):870—876)5. LI Ti-Bei. Mathematical Analyses of Enperiments. Beijing:Science Press. 134(in Chinese)(李惕碚.实验的数据处理,北京:科学出版社.134)6. Denisov S et al. Nucl. Instrum. Methods, 2002, A494-495

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WANG Feng-Mei, HENG Yue-Kun, YANG Lei, WU Chong, ZHAO Xiao-Jian, SUN Zhi-Jia, WU Jin-Jie, ZHAO Li, ZHAO Yu-Da and JIANG Lin-Li. Effect of Scintillator Wrapping Materials on Performance of TOF Counter[J]. Chinese Physics C, 2006, 30(8): 776-779.

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Received: 2005-11-30
Revised: 2006-02-08

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