Performance of the Liquid Xenon Scintillation Detector for the MEG Experiment

被引：0
|
作者：
Ootani, W. [1 ]
机构：
[1] Univ Tokyo, Int Ctr Elementary Particle Phys, Tokyo, Japan
来源：
2006 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOL 1-6 | 2006年
关键词：
D O I：
10.1109/NSSMIC.2006.356001
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A large-volume liquid xenon (LXe) scintillation detector has been developed for the MEG experiment, which will seek evidence for the lepton flavor violating process, mu -> e gamma with a branching ratio sensitivity smaller than 10(-13). A prototype detector with 100 L LXe was constructed to demonstrate that the performance of the proposed full-scale detector fulfills the requirements for the MEG experiment. New photomultipliers with a higher quantum efficiency and better performance under high rate environment were recently developed and employed in the prototype detector. The performance of the detector was measured with high-energy monochromatic photons from pi (0) decays produced in the charge exchange (CEX) process. We obtained an energy resolution of 1.2 +/- 0.1 % in sigma on the right side of the peak for the 55 MeV photons. The timing resolution was also measured to be 65 psec in sigma
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页码：940 / 942
页数：3
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