{"title":"ne - NBI放电中注入碳球团后中心离子温度的升高","authors":"Morita Shigeru, Nozato Hideaki, Takeiri Yasuhiko, Goto Motoshi, Ikeda Katsunori, Inagaki Shigeru, Kaneko Osamu, Kawahata Kazuo, Miyazawa Jyun-ichi, Muto Sadatsugu, Mutoh Takashi, Nagaoka Kenichi, Nagayama Yoshio, Oka Yoshihide, Osakabe Masaki, Sakakibara Satoru, Sakamoto Ryuichi, T. Kenji, Tokuzawa Tokihiko, Tsumori Katsuyoshi, Yamada Hiroshi","doi":"10.1585/JSPF.79.641","DOIUrl":null,"url":null,"abstract":"A cylindrical carbon pellet with a size of 1.0 mm φ × 1.0 mm L was injected into low-density (ne = 0.3‐0.5 × 10 13 cm -3 ) neon-seeded NBI plasmas of the Large Helical Device (LHD). When the two NBI beam pulses were delayed just after the pellet injection, a large increment of central ion temperature up to 5 keV was observed with the appearance of a peaked density profile (ne0 /〈ne〉~2.5) and enhanced toroidal rotation speed up to 35 km/s. Improvement of the ion transport is expected with the suggestion of a new operational scenario for confinement improvement in the LHD.","PeriodicalId":7974,"journal":{"name":"Annual Report of National Institute for Fusion Science","volume":"115 ","pages":"5"},"PeriodicalIF":0.0000,"publicationDate":"2003-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"9","resultStr":"{\"title\":\"Increase of Central Ion Temperature After Carbon Pellet Injection in Ne-Seeded NBI Discharges\",\"authors\":\"Morita Shigeru, Nozato Hideaki, Takeiri Yasuhiko, Goto Motoshi, Ikeda Katsunori, Inagaki Shigeru, Kaneko Osamu, Kawahata Kazuo, Miyazawa Jyun-ichi, Muto Sadatsugu, Mutoh Takashi, Nagaoka Kenichi, Nagayama Yoshio, Oka Yoshihide, Osakabe Masaki, Sakakibara Satoru, Sakamoto Ryuichi, T. Kenji, Tokuzawa Tokihiko, Tsumori Katsuyoshi, Yamada Hiroshi\",\"doi\":\"10.1585/JSPF.79.641\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A cylindrical carbon pellet with a size of 1.0 mm φ × 1.0 mm L was injected into low-density (ne = 0.3‐0.5 × 10 13 cm -3 ) neon-seeded NBI plasmas of the Large Helical Device (LHD). When the two NBI beam pulses were delayed just after the pellet injection, a large increment of central ion temperature up to 5 keV was observed with the appearance of a peaked density profile (ne0 /〈ne〉~2.5) and enhanced toroidal rotation speed up to 35 km/s. Improvement of the ion transport is expected with the suggestion of a new operational scenario for confinement improvement in the LHD.\",\"PeriodicalId\":7974,\"journal\":{\"name\":\"Annual Report of National Institute for Fusion Science\",\"volume\":\"115 \",\"pages\":\"5\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2003-07-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"9\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Annual Report of National Institute for Fusion Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1585/JSPF.79.641\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annual Report of National Institute for Fusion Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1585/JSPF.79.641","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 9
摘要
将尺寸为1.0 mm φ × 1.0 mm L的圆柱形碳球注入大螺旋装置(LHD)的低密度(ne = 0.3‐0.5 × 10 - 13 cm -3)氖种子NBI等离子体中。当两束NBI脉冲在球团注入后延迟时，观察到中心离子温度大幅增加至5 keV，出现峰值密度分布(ne0 / < ne > ~2.5)，环形旋转速度增强至35 km/s。离子输运的改善是预期的，并提出了一种新的操作方案，以改善LHD的约束。
Increase of Central Ion Temperature After Carbon Pellet Injection in Ne-Seeded NBI Discharges
A cylindrical carbon pellet with a size of 1.0 mm φ × 1.0 mm L was injected into low-density (ne = 0.3‐0.5 × 10 13 cm -3 ) neon-seeded NBI plasmas of the Large Helical Device (LHD). When the two NBI beam pulses were delayed just after the pellet injection, a large increment of central ion temperature up to 5 keV was observed with the appearance of a peaked density profile (ne0 /〈ne〉~2.5) and enhanced toroidal rotation speed up to 35 km/s. Improvement of the ion transport is expected with the suggestion of a new operational scenario for confinement improvement in the LHD.
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