{"title":"GAMMA 10/PDX发散场区磁矩守恒对离子能量输运的贡献分析","authors":"Kosuke TAKANASHI, Satoshi TOGO, Naomichi EZUMI, Mafumi HIRATA, Tsukasa SUGIYAMA, Naoki SHIGEMATSU, Takumi SETO, Takuma OKAMOTO, Satoshi TAKAHASHI, Kunpei NOJIRI, Mizuki SAKAMOTO","doi":"10.1585/pfr.18.2402081","DOIUrl":null,"url":null,"abstract":"We investigated the contribution of magnetic moment conservation to ion energy transport in the divergent magnetic field region, using the GAMMA 10/PDX end region to simulate scrape-offlayer (SOL) plasmas in DEMO reactors. The averaged parallel energy increments (∆E∥) were measured by performing energy analyses at two points: upstream and downstream of the GAMMA 10/PDX end region. A newly developed retarding field analyzer (RFA) was inserted upstream of the end region to perform energy analyses. Assuming that only effects of potential difference (∆Eϕ) and magnetic moment conservation (∆E⟨µ⟩) affect ∆E∥, the contribution of magnetic moment conservation to ion energy transport was deduced. These results suggested that ∆E⟨µ⟩< ∆Eϕ irrespective of the difference in the diamagnetism at the central cell of GAMMA 10/PDX.","PeriodicalId":20247,"journal":{"name":"Plasma and Fusion Research","volume":"38 1","pages":"0"},"PeriodicalIF":0.8000,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Analysis of the Contribution of Magnetic Moment Conservation to Ion Energy Transport in the GAMMA 10/PDX Divergent Field Region\",\"authors\":\"Kosuke TAKANASHI, Satoshi TOGO, Naomichi EZUMI, Mafumi HIRATA, Tsukasa SUGIYAMA, Naoki SHIGEMATSU, Takumi SETO, Takuma OKAMOTO, Satoshi TAKAHASHI, Kunpei NOJIRI, Mizuki SAKAMOTO\",\"doi\":\"10.1585/pfr.18.2402081\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We investigated the contribution of magnetic moment conservation to ion energy transport in the divergent magnetic field region, using the GAMMA 10/PDX end region to simulate scrape-offlayer (SOL) plasmas in DEMO reactors. The averaged parallel energy increments (∆E∥) were measured by performing energy analyses at two points: upstream and downstream of the GAMMA 10/PDX end region. A newly developed retarding field analyzer (RFA) was inserted upstream of the end region to perform energy analyses. Assuming that only effects of potential difference (∆Eϕ) and magnetic moment conservation (∆E⟨µ⟩) affect ∆E∥, the contribution of magnetic moment conservation to ion energy transport was deduced. These results suggested that ∆E⟨µ⟩< ∆Eϕ irrespective of the difference in the diamagnetism at the central cell of GAMMA 10/PDX.\",\"PeriodicalId\":20247,\"journal\":{\"name\":\"Plasma and Fusion Research\",\"volume\":\"38 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2023-09-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Plasma and Fusion Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1585/pfr.18.2402081\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, FLUIDS & PLASMAS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasma and Fusion Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1585/pfr.18.2402081","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, FLUIDS & PLASMAS","Score":null,"Total":0}
Analysis of the Contribution of Magnetic Moment Conservation to Ion Energy Transport in the GAMMA 10/PDX Divergent Field Region
We investigated the contribution of magnetic moment conservation to ion energy transport in the divergent magnetic field region, using the GAMMA 10/PDX end region to simulate scrape-offlayer (SOL) plasmas in DEMO reactors. The averaged parallel energy increments (∆E∥) were measured by performing energy analyses at two points: upstream and downstream of the GAMMA 10/PDX end region. A newly developed retarding field analyzer (RFA) was inserted upstream of the end region to perform energy analyses. Assuming that only effects of potential difference (∆Eϕ) and magnetic moment conservation (∆E⟨µ⟩) affect ∆E∥, the contribution of magnetic moment conservation to ion energy transport was deduced. These results suggested that ∆E⟨µ⟩< ∆Eϕ irrespective of the difference in the diamagnetism at the central cell of GAMMA 10/PDX.
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