Study of absorption and re-emission processes in a ternary liquid scintillation system

XIAO Hua-Lin; LI Xiao-Bo; ZHENG Dong; CAO Jun; WEN Liang-Jian; WANG Nai-Yan

doi:10.1088/1674-1137/34/11/011

Chinese Physics C> 2010, Vol. 34> Issue(11) : 1724-1728 DOI: 10.1088/1674-1137/34/11/011

Study of absorption and re-emission processes in a ternary liquid scintillation system

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Abstract：
Liquid scintillators are widely used as the neutrino target in neutrino experiments. The absorption and emission of different components of a ternary liquid scintillator (Linear Alkyl Benzene (LAB) as the solvent, 2,5-diphenyloxazole (PPO) as the fluor and p-bis-(o-methylstyryl)-benzene (bis-MSB) as wavelength shifter) are studied. It is shown that the absorption of this liquid scintillator is dominant by LAB and PPO at wavelengths less than 349~nm, and the absorption by bis-MSB becomes prevalent at the wavelength larger than 349 nm. The fluorescence quantum yields, which are the key parameters to model the absorption and re-emission processes in large liquid scintillation detectors, are measured.

References

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XIAO Hua-Lin, LI Xiao-Bo, ZHENG Dong, CAO Jun, WEN Liang-Jian and WANG Nai-Yan. Study of absorption and re-emission processes in a ternary liquid scintillation system[J]. Chinese Physics C, 2010, 34(11): 1724-1728. doi: 10.1088/1674-1137/34/11/011

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Received: 2010-01-25
Revised: 2010-02-26

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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

Study of absorption and re-emission processes in a ternary liquid scintillation system

Corresponding author: XIAO Hua-Lin,

Received Date: 2010-01-25

Accepted Date: 2010-02-26

Available Online: 2010-11-05

Abstract: Liquid scintillators are widely used as the neutrino target in neutrino experiments. The absorption and emission of different components of a ternary liquid scintillator (Linear Alkyl Benzene (LAB) as the solvent, 2,5-diphenyloxazole (PPO) as the fluor and p-bis-(o-methylstyryl)-benzene (bis-MSB) as wavelength shifter) are studied. It is shown that the absorption of this liquid scintillator is dominant by LAB and PPO at wavelengths less than 349~nm, and the absorption by bis-MSB becomes prevalent at the wavelength larger than 349 nm. The fluorescence quantum yields, which are the key parameters to model the absorption and re-emission processes in large liquid scintillation detectors, are measured.

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Study of absorption and re-emission processes in a ternary liquid scintillation system

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