{"title":"Numerical analysis for the free-boundary current reversal equilibrium in the AC plasma current operation in Tokamak","authors":"Yemin Hu, Liuqing Wang, Shuhang Bai, Zhi Yu, Tianyang Xia","doi":"10.1088/2058-6272/ad0c98","DOIUrl":null,"url":null,"abstract":"Abstract Abstract In the last decades, tokamak discharges with zero total toroidal current have been reported in tokamak experiments, which is one of the most key problems in the AC operations. An efficient free-boundary equilibrium code is developed to investigate such advanced tokamak discharges with current reversal equilibrium configuration. The calculation results show that the reversal current equilibrium can maintain finite pressure, extreme high \\beta_{p}, and also have considerable effects on the position of the X-point, magnetic separatrix shape, and hence the position of the strike point on the divertor plates, which is extremely useful for the magnetic design, the MHD stability analysis, and the experimental data analysis etc. for the AC plasma current operation on tokamaks.","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1088/2058-6272/ad0c98","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract Abstract In the last decades, tokamak discharges with zero total toroidal current have been reported in tokamak experiments, which is one of the most key problems in the AC operations. An efficient free-boundary equilibrium code is developed to investigate such advanced tokamak discharges with current reversal equilibrium configuration. The calculation results show that the reversal current equilibrium can maintain finite pressure, extreme high \beta_{p}, and also have considerable effects on the position of the X-point, magnetic separatrix shape, and hence the position of the strike point on the divertor plates, which is extremely useful for the magnetic design, the MHD stability analysis, and the experimental data analysis etc. for the AC plasma current operation on tokamaks.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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