D. Moseev, M. Zanini, H. Kasahara, Heinrich Laqua, H. Funaba, Wataru Hayashi, W. Heidbrink, K. Ida, H. Igami, Yasuko Kawamoto, Naoki Kenmochi, S. Lazerson, Masaki Nishiura, R. Ochoukov, Kunihiro Ogawa, M. R. Larsen, M. Salewski, T. Seki, N. Tamura, Kenji Tanaka, T. Tokuzawa, M. Yoshinuma
{"title":"Influence of sawtooth oscillations on fast ions in a stellarator","authors":"D. Moseev, M. Zanini, H. Kasahara, Heinrich Laqua, H. Funaba, Wataru Hayashi, W. Heidbrink, K. Ida, H. Igami, Yasuko Kawamoto, Naoki Kenmochi, S. Lazerson, Masaki Nishiura, R. Ochoukov, Kunihiro Ogawa, M. R. Larsen, M. Salewski, T. Seki, N. Tamura, Kenji Tanaka, T. Tokuzawa, M. Yoshinuma","doi":"10.1088/1741-4326/ad4169","DOIUrl":null,"url":null,"abstract":"\n Sawtooth oscillations in tokamaks frequently lead to the redistribution of energetic ions, mainly on passing orbits, causing their expulsion from the core. This paper discusses the first measurements of the interaction of fast ions and sawteeth in the Large Helical Device (LHD). The crashes, caused by changed rotational transform profile due to electron cyclotron current drive (ECCD) and neutral beam current drive (NBCD), show no redistribution effect on fast ions in the core or at the edge.","PeriodicalId":503481,"journal":{"name":"Nuclear Fusion","volume":"50 22","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Fusion","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1088/1741-4326/ad4169","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Sawtooth oscillations in tokamaks frequently lead to the redistribution of energetic ions, mainly on passing orbits, causing their expulsion from the core. This paper discusses the first measurements of the interaction of fast ions and sawteeth in the Large Helical Device (LHD). The crashes, caused by changed rotational transform profile due to electron cyclotron current drive (ECCD) and neutral beam current drive (NBCD), show no redistribution effect on fast ions in the core or at the edge.
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