{"title":"离子束诱导金属表面同位素组成变化及反冲注入","authors":"J. Okano, T. Ochiai, H. Nishimura","doi":"10.1016/0378-5963(85)90038-8","DOIUrl":null,"url":null,"abstract":"<div><p>It was found that the isotope ratios of <sup>58</sup>Ni/<sup>60</sup>Ni and <sup>63</sup>Cu/<sup>65</sup>Cu measured by SIMS changed by a few percent at the initial stage of ion bombardment for well-polished pure metal samples. A similar change was also found for silver, palladium, titanium and chromium targets. The isotope ratios, the light to the heavy, for the fresh surfaces were low at first and increased with time to reach constant values as the ion bombardment continued. It was pointed out that the main process able to induce such a large mass effect would be preferential recoil implantation of isotopes by primary ions.</p></div>","PeriodicalId":100105,"journal":{"name":"Applications of Surface Science","volume":"22 ","pages":"Pages 72-81"},"PeriodicalIF":0.0000,"publicationDate":"1985-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0378-5963(85)90038-8","citationCount":"3","resultStr":"{\"title\":\"Ion-beam-induced isotope composition changes in metal surfaces and recoil implantation\",\"authors\":\"J. Okano, T. Ochiai, H. Nishimura\",\"doi\":\"10.1016/0378-5963(85)90038-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>It was found that the isotope ratios of <sup>58</sup>Ni/<sup>60</sup>Ni and <sup>63</sup>Cu/<sup>65</sup>Cu measured by SIMS changed by a few percent at the initial stage of ion bombardment for well-polished pure metal samples. A similar change was also found for silver, palladium, titanium and chromium targets. The isotope ratios, the light to the heavy, for the fresh surfaces were low at first and increased with time to reach constant values as the ion bombardment continued. It was pointed out that the main process able to induce such a large mass effect would be preferential recoil implantation of isotopes by primary ions.</p></div>\",\"PeriodicalId\":100105,\"journal\":{\"name\":\"Applications of Surface Science\",\"volume\":\"22 \",\"pages\":\"Pages 72-81\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1985-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0378-5963(85)90038-8\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applications of Surface Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0378596385900388\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applications of Surface Science","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0378596385900388","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Ion-beam-induced isotope composition changes in metal surfaces and recoil implantation
It was found that the isotope ratios of 58Ni/60Ni and 63Cu/65Cu measured by SIMS changed by a few percent at the initial stage of ion bombardment for well-polished pure metal samples. A similar change was also found for silver, palladium, titanium and chromium targets. The isotope ratios, the light to the heavy, for the fresh surfaces were low at first and increased with time to reach constant values as the ion bombardment continued. It was pointed out that the main process able to induce such a large mass effect would be preferential recoil implantation of isotopes by primary ions.
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