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Radiation damage in scintillator detector chemical compounds: a new approach using PPO-Toluene liquid scintillator as a model

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5 Author(s)
Mesquita, C.H. ; Instituto de Pesquisas Energeticas e Nucl., Sao Paulo, Brazil ; Neto, J.M.F. ; Duarte, C.L. ; Rela, P.R.
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The effect of radiation damage was evaluated in PPO-Toluene liquid scintillator solution. Samples containing PPO (1% w/v) diluted in toluene were prepared and irradiated at different doses, using a 60Co irradiator at 1.8 Gy/s. The effect of radiation on transmittance, light output, and chemical modification in the PPO were evaluated before and after irradiation. Transmittance loss at 360 nm decayed exponentially with the dose. The light output decreased as the radiation dose increased. PPO degraded biexponentially with the dose, whereas PPO degradation products, such as benzoic acid, benzamide, and benzyl alcohol, increased with the dose.

Published in:

Nuclear Science, IEEE Transactions on  (Volume:49 ,  Issue: 4 )

Date of Publication:

Aug 2002

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