{"title":"Electron density diagnostics by Fe XXII line intensity ratio","authors":"Kuniaki Masai, Takako Kato","doi":"10.1016/0375-9601(87)90042-9","DOIUrl":null,"url":null,"abstract":"<div><div>The electron density of a tokamak plasma is obtained from the 114.41 and 117.17Å line intensities of Fe XXII. This measurement is found to be useful for electron densities in the range 10<sup>12</sup>−10<sup>15</sup> cm<sup>−3</sup>, on account of its weak dependence on temperature and of the proximity of these spectral lines.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"123 8","pages":"Pages 405-409"},"PeriodicalIF":2.6000,"publicationDate":"1987-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics Letters A","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0375960187900429","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The electron density of a tokamak plasma is obtained from the 114.41 and 117.17Å line intensities of Fe XXII. This measurement is found to be useful for electron densities in the range 1012−1015 cm−3, on account of its weak dependence on temperature and of the proximity of these spectral lines.
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