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This paper compares ??-ray induced radiation damage effect in two kinds of heavy crystal scintillators: PWO and LSO/LYSO. Scintillation emission, optical transmission, light output, decay kinetics and light response uniformity were measured for PWO and LSO/LYSO crystal samples of large size before and after ??-ray irradiations. ??-ray induced phosphorescence was also measured, and the corresponding...
In this paper, we report an investigation on the radiation damage effects induced by neutrons in large size crystal scintillator: BGO, CeF3, LYSO:Ce and PWO. The irradiations were carried out by using fast neutrons from one 241Am-Be and two 252Cf sources. The optical and scintillation properties of these samples, including UV excitation and emission spectra, longitudinal transmission, light output,...
Following our previous studies, a further investigation on three long (2.5times2.5times20 cm3) LSO and LYSO samples was carried out, and the result was compared to a long BGO sample of the same size. The optical and scintillation properties, including transmittance, emission and excitation spectra, were measured. The light output and light response uniformity were measured by using both PMT and APD...
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