| Temperature dependence of the light yield of the LAB-based and mesitylene-based liquid scintillators |
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| 作者姓名： | 夏冬梅 俞伯祥 李小波 孙希磊 丁雅韵 周莉 曹俊 胡为 叶星辰 陈海涛 丁雪峰 杜冰 |
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| 作者单位： | 1. State Key Laboratory of Particle Detection and Electronics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;;2. University of Chinese Academy of Sciences, Beijing 100049, China;;3. School of Physics and Technology, and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, Wuhan University, Wuhan 430072, China;;4. Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| 基金项目： | Supported by National Science Foundation of China(11205183,11005117,11225525,11390384) |
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| 摘 要： | We studied the temperature dependence of the light yield of linear alkyl benzene(LAB)-based and mesitylene-based liquid scintillators. The light yield increases by 23% for both liquid scintillators when the temperature is lowered from 26 to-40, correcting for the temperature response of the photomultiplier tube. The measurements help to understand the energy response of liquid scintillator detectors. Especially, the next generation reactor neutrino experiments for neutrino mass hierarchy, such as the Jiangmen Underground Neutrino Observatory(JUNO), require very high energy resolution. As no apparent degradation on the liquid scintillator transparency was observed, lowering the operation temperature of the detector to ～4 will increase the photoelectron yield of the detector by 13%, combining the light yield increase of the liquid scintillator and the quantum efficiency increase of the photomultiplier tubes.
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| 关 键 词： | liquid scintillator reactor neutrino linear alkyl benzene mesitylene |
| 收稿时间： | 2013-12-16 |
| 修稿时间： | 2014-2-23 |
Temperature dependence of the light yield of the LAB-based and mesitylene-based liquid scintillators |
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| Abstract: | |
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| Keywords: | liquid scintillator reactor neutrino linear alkyl benzene mesitylene |
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