Measurement of scintillators in BESIII TOF

ZHAO Yuda1; 2 HENG Yuekun2 SUN Zhijia2 WU Jinjie2 WANG Yifang2 1

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Measurement of scintillators in BESIII TOF

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- Measurement of scintillators in BESIII TOF
- NUCLEAR TECHNIQUES Issue 4, (2008)
- 作者机构：
  
  1. 南京大学
  2. 南京大学,南京,210093
  3. 中国科学院高能物理研究所
  4. ,北京,100049
- 作者简介：
- 基金信息：
  
  北京正负电子对撞机重大改造工程项目;中国科学院知识创新基金(U-602和U-34)资助
- DOI：
  CLC： TL81
- Published：01 April 2008
- 稿件说明：
移动端阅览
[1]赵玉达,衡月昆,孙志嘉,吴金杰,王贻芳.BESIII飞行时间探测器塑料闪烁体性能检测[J].核技术,2008(04):241-244.

ZHAO Yuda1, 2 HENG Yuekun2 SUN Zhijia2 WU Jinjie2 WANG Yifang2 1. Measurement of scintillators in BESIII TOF[J]. Nuclear techniques, 2008, (4): 241-244.
[1]赵玉达,衡月昆,孙志嘉,吴金杰,王贻芳.BESIII飞行时间探测器塑料闪烁体性能检测[J].核技术,2008(04):241-244. DOI：

ZHAO Yuda1, 2 HENG Yuekun2 SUN Zhijia2 WU Jinjie2 WANG Yifang2 1. Measurement of scintillators in BESIII TOF[J]. Nuclear techniques, 2008, (4): 241-244. DOI：

摘要

北京谱议（BESIII）重大改造工程中飞行时间探测器所使用的各个塑料闪烁体需要严格测量和质量控制

包括机械尺寸、有效衰减长度和相对光产额。我们用宇宙线测量塑料闪烁体的衰减长度时

利用飞行时间探测器本身的时间信息重建出宇宙线的位置和方向

宇宙线在闪烁体上的光产额通过其两端光电倍增管的电荷信息来反应

这样测量的闪烁体的有效衰减长度统计量大、准确并且快速。检测结果表明

闪烁体的各项指标达到了的设计要求。

Abstract

Properties of the scintillator bars are very important to the goal of 90 ps time resolution of the TOF detec-tor on BESIII.The mechanical sizes were measured.The scintillator bars were piled up to measure the effective at-tenuation length and relative light output by cosmic rays.The positions hit by cosmic rays were deduced by time in-formation acquired from the PMTs at the two ends of the scintillators.The results show that the scintillators is very good in quality for BESIII TOF.

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