{"title":"铅中的210Po向表面迁移","authors":"A. Zastawny, J. Białoń, T. Sosiński","doi":"10.1016/0883-2889(92)90058-M","DOIUrl":null,"url":null,"abstract":"<div><p>Measurements and analysis of the kinetics of the phenomenon of migration of polonium to the surface in lead are presented. Polonium atoms diffuse to surface because their thermodynamic potential on surface is lower than inside the lead of the raw production. The effect is very weak for the case of thermal diffusion at room temperature, but very strong when close-to-surface layer is plastically deformed for instance by cutting of the surface. After several vacuum-remelting processes all the effect decrease.</p></div>","PeriodicalId":14288,"journal":{"name":"International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes","volume":"43 9","pages":"Pages 1147-1150"},"PeriodicalIF":0.0000,"publicationDate":"1992-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0883-2889(92)90058-M","citationCount":"16","resultStr":"{\"title\":\"Migration of 210Po in lead to the surface\",\"authors\":\"A. Zastawny, J. Białoń, T. Sosiński\",\"doi\":\"10.1016/0883-2889(92)90058-M\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Measurements and analysis of the kinetics of the phenomenon of migration of polonium to the surface in lead are presented. Polonium atoms diffuse to surface because their thermodynamic potential on surface is lower than inside the lead of the raw production. The effect is very weak for the case of thermal diffusion at room temperature, but very strong when close-to-surface layer is plastically deformed for instance by cutting of the surface. After several vacuum-remelting processes all the effect decrease.</p></div>\",\"PeriodicalId\":14288,\"journal\":{\"name\":\"International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes\",\"volume\":\"43 9\",\"pages\":\"Pages 1147-1150\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1992-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0883-2889(92)90058-M\",\"citationCount\":\"16\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/088328899290058M\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/088328899290058M","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Measurements and analysis of the kinetics of the phenomenon of migration of polonium to the surface in lead are presented. Polonium atoms diffuse to surface because their thermodynamic potential on surface is lower than inside the lead of the raw production. The effect is very weak for the case of thermal diffusion at room temperature, but very strong when close-to-surface layer is plastically deformed for instance by cutting of the surface. After several vacuum-remelting processes all the effect decrease.
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