{"title":"残余热释光对某些TL荧光粉辐射致敏的影响","authors":"Bhuwan Chandra, R.C. Bhatt, S.J. Supe","doi":"10.1016/0029-554X(81)90762-X","DOIUrl":null,"url":null,"abstract":"<div><p>The effect of the high temperature residual TL (RTL) peak on the sensitization of the dosimetric peak in CaSO<sub>4</sub> : Dy, CaSO<sub>4</sub> : Tm and CaF<sub>2</sub> : Dy phorphors was studied and it was found that the sensitization factor (<em>S</em>/<em>S</em><sub>0</sub>) is dependent on the intensity of the RTL peak. On bleaching the RTL peak intensity by a factor of ∼16 by means of intense UV irradiation (253.7 nm), it was possible to bring down the sensitization factor for CaSO<sub>4</sub> : Dy from a value of 2.6 to 1.0. A similar effect has also been observed in CaSO<sub>4</sub> : Tm and CaF<sub>2</sub> : Dy phosphors. The shape and also the position of the main dosimetric peak is dependent on the intensity of the RTL peak.</p></div>","PeriodicalId":100971,"journal":{"name":"Nuclear Instruments and Methods","volume":"184 2","pages":"Pages 549-555"},"PeriodicalIF":0.0000,"publicationDate":"1981-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0029-554X(81)90762-X","citationCount":"8","resultStr":"{\"title\":\"Effect of residual thermoluminescence on the radiation induced sensitization of some TL phosphors\",\"authors\":\"Bhuwan Chandra, R.C. Bhatt, S.J. Supe\",\"doi\":\"10.1016/0029-554X(81)90762-X\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The effect of the high temperature residual TL (RTL) peak on the sensitization of the dosimetric peak in CaSO<sub>4</sub> : Dy, CaSO<sub>4</sub> : Tm and CaF<sub>2</sub> : Dy phorphors was studied and it was found that the sensitization factor (<em>S</em>/<em>S</em><sub>0</sub>) is dependent on the intensity of the RTL peak. On bleaching the RTL peak intensity by a factor of ∼16 by means of intense UV irradiation (253.7 nm), it was possible to bring down the sensitization factor for CaSO<sub>4</sub> : Dy from a value of 2.6 to 1.0. A similar effect has also been observed in CaSO<sub>4</sub> : Tm and CaF<sub>2</sub> : Dy phosphors. The shape and also the position of the main dosimetric peak is dependent on the intensity of the RTL peak.</p></div>\",\"PeriodicalId\":100971,\"journal\":{\"name\":\"Nuclear Instruments and Methods\",\"volume\":\"184 2\",\"pages\":\"Pages 549-555\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1981-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0029-554X(81)90762-X\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Instruments and Methods\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0029554X8190762X\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Instruments and Methods","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0029554X8190762X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Effect of residual thermoluminescence on the radiation induced sensitization of some TL phosphors
The effect of the high temperature residual TL (RTL) peak on the sensitization of the dosimetric peak in CaSO4 : Dy, CaSO4 : Tm and CaF2 : Dy phorphors was studied and it was found that the sensitization factor (S/S0) is dependent on the intensity of the RTL peak. On bleaching the RTL peak intensity by a factor of ∼16 by means of intense UV irradiation (253.7 nm), it was possible to bring down the sensitization factor for CaSO4 : Dy from a value of 2.6 to 1.0. A similar effect has also been observed in CaSO4 : Tm and CaF2 : Dy phosphors. The shape and also the position of the main dosimetric peak is dependent on the intensity of the RTL peak.
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