Effect of γ-Radiation on the Physical Properties of poly(vinyl alcohol) Dyed with Tetrabromophenolphthalein Ethyl Ester | ||||
| Egyptian Journal of Radiation Sciences and Applications | ||||
| Article 11, Volume 24, Issue 1, June 2011, Page 153-164 PDF (684.47 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejrsa.2011.1462 | ||||
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| Abstract | ||||
| THE INVESTIGATION of the radiation sensitive indicators based on dyed poly(vinyl alcohol) (PVA) containing acid sensitive dye tetrabromophenolphthalein ethyl ester (TBPE) and trichloro acetamide (TCA) have been developed. These plastic film dosimeters undergo colour change from blue to green to pale green, indicating acid formation. These films can be used as dosimeters for food irradiation applications where the maximum of the useful dose ranges are between 1-5 kGy depending on TCA concentration in the film. The films have the advantage of negligible humidity effects on response in the intermediate range of relative humidity (RH) from 10-50% and good stability before and after irradiation under different storage conditions. | ||||
| Keywords | ||||
| Tetrabromophenolphthalein ethyl jester); Poly(vinyl alcohol); γ-rays dosimeter; trichloro acetamide | ||||
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