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

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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
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 shu
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Received: 2010-01-25
Revised: 2010-02-26
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Study of absorption and re-emission processes in a ternary liquid scintillation system

    Corresponding author: XIAO Hua-Lin,

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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