{"title":"酸性重铬酸盐水溶液在10-40 kGy范围内作为参考剂量计","authors":"P.H.G. Sharpe, J.H. Barrett, A.M. Berkley","doi":"10.1016/0020-708X(85)90006-7","DOIUrl":null,"url":null,"abstract":"<div><p>The radiolytic reduction of dichromate ion in acidic aqueous solution has been investigated as a potential dosimetry system for the 10–40 kGy range of absorbed dose. Dilute sulphuric acid has been shown to be unsuitable as a solvent, and the use of 0.1 mol·dm<sup>−3</sup> perchloric acid is recommended. A previously reported effect of silver ion in supressing reaction with hydrogen has been confirmed, and in addition, silver ions have been shown to be effective in eliminating dose rate effects. The temperature coefficient during irradiation has been determined as −0.2% per degree and post-irradiation storage effects are shown to be negligible. The precision of the system is about 0.5% at a dose of 25 kGy, and a suggested composition for a working dosimeter is given.</p></div>","PeriodicalId":22517,"journal":{"name":"The International journal of applied radiation and isotopes","volume":"36 8","pages":"Pages 647-652"},"PeriodicalIF":0.0000,"publicationDate":"1985-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0020-708X(85)90006-7","citationCount":"34","resultStr":"{\"title\":\"Acidic aqueous dichromate solutions as reference dosimeters in the 10–40 kGy range\",\"authors\":\"P.H.G. Sharpe, J.H. Barrett, A.M. Berkley\",\"doi\":\"10.1016/0020-708X(85)90006-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The radiolytic reduction of dichromate ion in acidic aqueous solution has been investigated as a potential dosimetry system for the 10–40 kGy range of absorbed dose. Dilute sulphuric acid has been shown to be unsuitable as a solvent, and the use of 0.1 mol·dm<sup>−3</sup> perchloric acid is recommended. A previously reported effect of silver ion in supressing reaction with hydrogen has been confirmed, and in addition, silver ions have been shown to be effective in eliminating dose rate effects. The temperature coefficient during irradiation has been determined as −0.2% per degree and post-irradiation storage effects are shown to be negligible. The precision of the system is about 0.5% at a dose of 25 kGy, and a suggested composition for a working dosimeter is given.</p></div>\",\"PeriodicalId\":22517,\"journal\":{\"name\":\"The International journal of applied radiation and isotopes\",\"volume\":\"36 8\",\"pages\":\"Pages 647-652\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1985-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0020-708X(85)90006-7\",\"citationCount\":\"34\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The International journal of applied radiation and isotopes\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0020708X85900067\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The International journal of applied radiation and isotopes","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0020708X85900067","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Acidic aqueous dichromate solutions as reference dosimeters in the 10–40 kGy range
The radiolytic reduction of dichromate ion in acidic aqueous solution has been investigated as a potential dosimetry system for the 10–40 kGy range of absorbed dose. Dilute sulphuric acid has been shown to be unsuitable as a solvent, and the use of 0.1 mol·dm−3 perchloric acid is recommended. A previously reported effect of silver ion in supressing reaction with hydrogen has been confirmed, and in addition, silver ions have been shown to be effective in eliminating dose rate effects. The temperature coefficient during irradiation has been determined as −0.2% per degree and post-irradiation storage effects are shown to be negligible. The precision of the system is about 0.5% at a dose of 25 kGy, and a suggested composition for a working dosimeter is given.
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