Radiation damage in scintillator detector chemical compounds: a new approach using PPO-Toluene liquid scintillator as a model
| Autor: | C.L. Duarte, P.R. Rela, Margarida Mizue Hamada, J.M.F. Neto, Carlos Henrique de Mesquita |
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| Rok vydání: | 2002 |
| Předmět: |
Nuclear and High Energy Physics
Materials science business.industry Radiochemistry Chemical modification Scintillator Toluene Radiation effect chemistry.chemical_compound Optics Nuclear Energy and Engineering chemistry Benzyl alcohol Radiation damage Irradiation Electrical and Electronic Engineering business Benzoic acid |
| Zdroj: | IEEE Transactions on Nuclear Science. 49:1669-1673 |
| ISSN: | 1558-1578 0018-9499 |
| DOI: | 10.1109/tns.2002.801712 |
| Popis: | The radiation damage effect was evaluated in the PPO-toluene liquid scintillator solution. Samples containing PPO (1% w/v) diluted in toluene were prepared and irradiated at different doses, using a /sup 60/Co irradiator at 6.46 kGy.h/sup -1/. The radiation effect on the transmittance, light output and chemical modification in the PPO were evaluated before and after irradiation. The loss in transmittance at 360 nm decayed exponentially with the dose. The light output decreased as the radiation dose increased. The PPO degraded bi-exponentially with the dose, while the PPO degradation products, such as benzoic acid, benzamide and benzyl alcohol, increased with the dose. |
| Databáze: | OpenAIRE |
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