Chinese Physics C > 2015, Vol. 39 > Issue(9): 096003 DOI: 10.1088/1674-1137/39/9/096003

Preliminary study of light yield dependence on LAB liquidscintillator composition

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Abstract：
Liquid scintillator (LS) will be adopted as the detector material in JUNO (Jiangmen Underground Neutrino Observatory). The energy resolution requirement of JUNO is 3%, which has never previously been reached. To achieve this energy resolution, the light yield of liquid scintillator is an important factor. PPO (the fluor) and bis-MSB (the wavelength shifter) are the two main materials dissolved in LAB. To study the influence of these two materials on the transmission of scintillation photons in LS, 25 and 12 cm-long quartz vessels were used in a light yield experiment. LS samples with different concentration of PPO and bis-MSB were tested. At these lengths, the light yield growth is not obvious when the concentration of PPO is higher than 4 g/L. The influence from bis-MSB becomes insignificant when its concentration is higher than 8 mg/L. This result could provide some useful suggestions for the JUNO LS.

References

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YE Xing-Chen, YU Bo-Xiang, ZHOU Xiang, ZHAO L, DING Ya-Yun, LIU Meng-Chao, DING Xue-Feng, ZHANG Xuan, JIE Quan-Lin, FANG Jian, CHEN Hai-Tao, HU Wei, NIU Shun-Li, YAN Jia-Qing, ZHAO Hang, HONG Dao-Jin and Preliminary study of light yield dependence on LAB liquidscintillator composition[J]. Chinese Physics C, 2015, 39(9): 096003. doi: 10.1088/1674-1137/39/9/096003

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Received: 2015-03-04
Revised: 1900-01-01

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Preliminary study of light yield dependence on LAB liquidscintillator composition

Corresponding author:YU Bo-Xiang,

Corresponding author:ZHOU Xiang,

Corresponding author:JIE Quan-Lin,

Received Date:2015-03-04

Accepted Date:1900-01-01

Available Online:2015-09-05

Abstract:Liquid scintillator (LS) will be adopted as the detector material in JUNO (Jiangmen Underground Neutrino Observatory). The energy resolution requirement of JUNO is 3%, which has never previously been reached. To achieve this energy resolution, the light yield of liquid scintillator is an important factor. PPO (the fluor) and bis-MSB (the wavelength shifter) are the two main materials dissolved in LAB. To study the influence of these two materials on the transmission of scintillation photons in LS, 25 and 12 cm-long quartz vessels were used in a light yield experiment. LS samples with different concentration of PPO and bis-MSB were tested. At these lengths, the light yield growth is not obvious when the concentration of PPO is higher than 4 g/L. The influence from bis-MSB becomes insignificant when its concentration is higher than 8 mg/L. This result could provide some useful suggestions for the JUNO LS.

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Preliminary study of light yield dependence on LAB liquidscintillator composition

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