| 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. |
