Extension of the operational regime of the LHD towards a deuterium experiment
Yasuhiko Takeiri,Yasuhiko Takeiri,Tomohiro Morisaki,Tomohiro Morisaki,Masaki Osakabe,Masaki Osakabe,Masayuki Yokoyama,Masayuki Yokoyama,Satoru Sakakibara,Satoru Sakakibara,Hiroyuki R. Takahashi,Hiroyuki R. Takahashi,Yuji Nakamura,Yuji Nakamura,T. Oishi,T. Oishi,Gen Motojima,Gen Motojima,Sadayoshi Murakami,K. Ito,Akira Ejiri,Shinsaku Imagawa,Shinsaku Imagawa,Shigeru Inagaki,Mitsutaka Isobe,Mitsutaka Isobe,Shin Kubo,Sadao Masamune,Toshiyuki Mito,Toshiyuki Mito,Izumi Murakami,Izumi Murakami,K. Nagaoka,Kazunobu Nagasaki,K. Nishimura,Mizuki Sakamoto,Ryuichi Sakamoto,Ryuichi Sakamoto,Takashi Shimozuma,Kyosuke Shinohara,Hideo Sugama,Hideo Sugama,K.Y. Watanabe,Joon-Wook Ahn,Naofumi Akata,Naofumi Akata,Tsuyoshi Akiyama,Naoko Ashikawa,Naoko Ashikawa,J. Baldzuhn,T. Bando,E. Bernard,F. Castejón,Hirotaka Chikaraishi,M. Emoto,Todd Evans,Naomichi Ezumi,Keisuke Fujii,Hisamichi Funaba,Motoshi Goto,Motoshi Goto,Takuya Goto,Takuya Goto,D. Gradic,Y. Gunsu,Shinji Hamaguchi,Hiroki Hasegawa,Hiroki Hasegawa,Y. Hayashi,C. Hidalgo,Takeshi Higashiguchi,Yoshiki Hirooka,Yoshiki Hirooka,Yoshimitsu Hishinuma,Ritoku Horiuchi,Ritoku Horiuchi,Katsuji Ichiguchi,Katsuji Ichiguchi,Katsumi Ida,Katsumi Ida,Takeshi Ido,Hiroe Igami,Katsunori Ikeda,Seiji Ishiguro,Seiji Ishiguro,R. Ishizaki,Akihiro Ishizawa,Atsushi Ito,Atsushi Ito,Y. Ito,A. Iwamoto,Shuji Kamio,Kensaku Kamiya,Osamu Kaneko,Ryutaro Kanno,Ryutaro Kanno,Hiroshi Kasahara,Daiji Kato,Daiji Kato,T. Kato,Kazuo Kawahata,Gakushi Kawamura,Gakushi Kawamura,Masashi Kisaki,Sumio Kitajima,W.H. Ko,Makoto I. Kobayashi,Makoto I. Kobayashi,Shinji Kobayashi,T. Kobayashi,T. Kobayashi,Kazunori Koga,Akira Kohyama,Ryuhei Kumazawa,J.H. Lee,D. López-Bruna,Ryohei Makino,Suguru Masuzaki,Yutaka Matsumoto,Hiroto Matsuura,Osamu Mitarai,Osamu Mitarai,H. Miura,J. Miyazawa,J. Miyazawa,Naoki Mizuguchi,Chanho Moon,S. Morita,S. Morita,Toseo Moritaka,Kiyofumi Mukai,Kiyofumi Mukai,Takeo Muroga,Takeo Muroga,Sadatsugu Muto,Takashi Mutoh,Tetsuro Nagasaka,Tetsuro Nagasaka,Yoshio Nagayama,Yoshio Nagayama,Noriyoshi Nakajima,Hideya Nakanishi,Hideya Nakanishi,Haruhisa Nakano,Haruhisa Nakano,Motoki Nakata,Motoki Nakata,Yoshiro Narushima,Yoshiro Narushima,Daisuke Nishijima,Arata Nishimura,Seiya Nishimura,Takeo Nishitani,Masaki Nishiura,Yuji Nobuta,H. Noto,Masanori Nunami,Masanori Nunami,Tetsuhiro Obana,Tetsuhiro Obana,Kunihiro Ogawa,Kunihiro Ogawa,Satoshi Ohdachi,Satoshi Ohdachi,M. Ohno,Noriyasu Ohno,Hiroaki Ohtani,Hiroaki Ohtani,M. Okamoto,Yasuhisa Oya,T. Ozaki,Byron J. Peterson,Byron J. Peterson,M. Preynas,S. Sagara,S. Sagara,K. Saito,Hiroyuki A. Sakaue,Akio Sanpei,Shinsuke Satake,Shinsuke Satake,M. Sato,Takuya Saze,Takuya Saze,Oliver Schmitz,Ryosuke Seki,Ryosuke Seki,Tetsuo Seki,I. A. Sharov,Akihiro Shimizu,Masaharu Shiratani,Mamoru Shoji,C. Skinner,R. Soga,Torsten Stange,Chihiro Suzuki,Yasuhiro Suzuki,Yasuhiro Suzuki,Suguru Takada,Kazuya Takahata,Kazuya Takahata,Arimichi Takayama,Sadatsugu Takayama,Y. Takemura,Y. Takemura,Y. Takeuchi,Hitoshi Tamura,Naoki Tamura,Hirohiko Tanaka,Kenji Tanaka,M. Y. Tanaka,M. Y. Tanaka,Teruya Tanaka,Teruya Tanaka,Yasunori Tanaka,Shinichiro Toda,Yasushi Todo,Yasushi Todo,Kazuo Toi,Mieko Toida,Masayuki Tokitani,Masayuki Tokitani,Tokihiko Tokuzawa,Hayato Tsuchiya,Toru Ii Tsujimura,Katsuyoshi Tsumori,Katsuyoshi Tsumori,Shunsuke Usami,Shunsuke Usami,José Luis Velasco,Hao Wang,Tomo-Hiko Watanabe,Tsuguhiro Watanabe,Juro Yagi,Juro Yagi,Miyuki Yajima,Hiroshi Yamada,Hiroshi Yamada,Ichihiro Yamada,Osamu Yamagishi,N. Yamaguchi,Y. Yamamoto,Nagato Yanagi,Nagato Yanagi,Ryo Yasuhara,E. Yatsuka,Nobuaki Yoshida,Mikiro Yoshinuma,Mikiro Yoshinuma,Shinji Yoshimura,Yasuo Yoshimura +250 more
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This article is published in Nuclear Fusion.The article was published on 2017-08-21 and is currently open access. It has received 95 citations till now. The article focuses on the topics: Large Helical Device.read more
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Journal ArticleDOI
Fusion neutron production with deuterium neutral beam injection and enhancement of energetic-particle physics study in the large helical device
Mitsutaka Isobe,Mitsutaka Isobe,Kunihiro Ogawa,Kunihiro Ogawa,Takeo Nishitani,Neng Pu,Hiroki Kawase,Ryosuke Seki,Ryosuke Seki,H. Nuga,Eiji Takada,Sadayoshi Murakami,Yasuhiro Suzuki,Yasuhiro Suzuki,Masayuki Yokoyama,Masayuki Yokoyama,Masaki Osakabe,Masaki Osakabe +17 more
Journal ArticleDOI
Preparation and Commissioning for the LHD Deuterium Experiment
Masaki Osakabe,Mitsutaka Isobe,Masahiro Tanaka,Gen Motojima,Katsuyoshi Tsumori,Masayuki Yokoyama,Tomohiro Morisaki,Yasuhiko Takeiri +7 more
TL;DR: The deuterium experiment started from March 2017 on the large helical device (LHD) as a part of the LHD high-performance upgrade project as discussed by the authors, and the objectives of the experiment are: 1) to realize the high performance operation; 2) to explore the physics of isotope effect; 3) to demonstrate the confinement capability of energetic particles in helical devices; and 4) to exploring the research on plasma material interactions using the benefit of stable steady-state operation ability of LHD.
Journal ArticleDOI
Realization of high T i plasmas and confinement characteristics of ITB plasmas in the LHD deuterium experiments
Hiroyuki R. Takahashi,Hiroyuki R. Takahashi,Kenichi Nagaoka,Kenichi Nagaoka,Kiyofumi Mukai,Kiyofumi Mukai,Masayuki Yokoyama,Masayuki Yokoyama,Sadayoshi Murakami,Satoshi Ohdachi,Satoshi Ohdachi,T. Bando,Yoshiro Narushima,Yoshiro Narushima,Haruhisa Nakano,Haruhisa Nakano,Masaki Osakabe,Masaki Osakabe,Katsumi Ida,Katsumi Ida,Mikiro Yoshinuma,Mikiro Yoshinuma,Ryosuke Seki,Ryosuke Seki,H. Yamaguchi,Kenji Tanaka,Motoki Nakata,Motoki Nakata,Felix Warmer,T. Oishi,T. Oishi,Motoshi Goto,Motoshi Goto,S. Morita,S. Morita,Toru Ii Tsujimura,Shin Kubo,Shin Kubo,T. Kobayashi,T. Kobayashi,Ichihiro Yamada,Chihiro Suzuki,M. Emoto,Takeshi Ido,Takeshi Ido,Akihiro Shimizu,Tokihiko Tokuzawa,Kazunobu Nagasaki,Tomohiro Morisaki,Tomohiro Morisaki,Yasuhiko Takeiri,Yasuhiko Takeiri +51 more
TL;DR: In this article, the deuterium operation was initiated in the LHD in 2017 and the new record of the ion temperature of 10 keV associated with the ion internal transport barrier (ITB) was achieved due to several operational optimization.
Journal ArticleDOI
The Large Helical Device: Entering Deuterium Experiment Phase Toward Steady-State Helical Fusion Reactor Based on Achievements in Hydrogen Experiment Phase
TL;DR: In this article, the deuterium experiment is described, along with the initial highlighted results in the very first steady-state helical experiment campaign in 2017, and the design activity of LHD-type steady state helical fusion reactor is also briefly introduced.
Journal ArticleDOI
KNOSOS: a fast orbit-averaging neoclassical code for stellarator geometry
TL;DR: Several calculations for the stellarators W7-X, LHD, NCSX and TJ-II that provide benchmark with standard local codes and demonstrate the advantages of KNOSOS can be applied to the calculation of neoclassical transport in stellarators and tokamaks with broken axisymmetry.
References
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Journal ArticleDOI
Overview of the large helical device project
A. Iiyoshi,Akio Komori,Akira Ejiri,Masahiko Emoto,Hisamichi Funaba,Motoshi Goto,Katsumi Ida,Hiroshi Idei,Shigeru Inagaki,Shinichiro Kado,Osamu Kaneko,Kazuo Kawahata,T. Kobuchi,Shin Kubo,Ryuhei Kumazawa,Suguru Masuzaki,T. Minami,J. Miyazawa,Tomohiro Morisaki,S. Morita,S. Murakami,Sadatsugu Muto,Takashi Mutoh,Yoshio Nagayama,Y. Nakamura,Hideya Nakanishi,K. Narihara,K. Nishimura,N. Noda,Satoshi Ohdachi,Nobuyoshi Ohyabu,Yoshihide Oka,Masaki Osakabe,T. Ozaki,B.J. Peterson,Akio Sagara,Satoru Sakakibara,Ryuichi Sakamoto,H. Sasao,Mamiko Sasao,Kuninori Sato,Masahide Sato,Tetsuo Seki,Takashi Shimozuma,Mamoru Shoji,Hajime Suzuki,Y. Takeiri,Kenji Tanaka,K. Toi,T. Tokuzawa,Katsuyoshi Tsumori,Kazuhiro Tsuzuki,K.Y. Watanabe,T. Watari,Hiroshi Yamada,Ichihiro Yamada,Soichiro Yamaguchi,Masayuki Yokoyama,R. Akiyama,Hirotaka Chikaraishi,K. Haba,Shinji Hamaguchi,M. Iima,Shinsaku Imagawa,N. Inoue,K. Iwamoto,S. Kitagawa,J. Kodaira,Yuusuke Kubota,Ryuji Maekawa,Toshiyuki Mito,Takuya Nagasaka,Arata Nishimura,C. Takahashi,Kazuya Takahata,Y. Takita,Hitoshi Tamura,T. Tsuzuki,S. Yamada,Kenji Yamauchi,Nagato Yanagi,H. Yonezu,Y. Hamada,Ken Matsuoka,K. Murai,Kunizo Ohkubo,I. Ohtake,M. Okamoto,Sadao Satoh,Takashi Satow,S. Sudo,S. Tanahashi,K. Yamazaki,Masami Fujiwara,O. Motojima +94 more
TL;DR: The Large Helical Device (LHD) has successfully started running plasma confinement experiments after a long construction period of eight years as mentioned in this paper, and the first plasma was ignited on 31 March 1998.
An Overview of the Large Helical Device Project
A. Iiyoshi,A. Komori,Akira Ejiri,M. Emoto,H. Funaba,Motoshi Goto,Katsumi Ida,Hiroshi Idei,S. Inagaki,Shinichiro Kado,Osamu Kaneko,Kazuo Kawahata,Shin Kubo,Ryuhei Kumazawa,Suguru Masuzaki,T. Minami,J. Miyazawa,Tomohiro Morisaki,S. Morita,S. Murakami,Sadatsugu Muto,T. Muto,Y. Nagayama,Y. Nakamura,Hideya Nakanishi,K. Narihara,K. Nishimura,N. Noda,T. Kobuchi,Satoshi Ohdachi,Nobuyoshi Ohyabu,Yoshihide Oka,Masaki Osakabe,T. Ozaki,B.J. Peterson,Akio Sagara,Satoru Sakakibara,Ryuichi Sakamoto,H. Sasao,M. Sasao,Kuninori Sato,Masahide Sato,Tetsuo Seki,Takashi Shimozuma,Mamoru Shoji,Hajime Suzuki,Y. Takeiri,Kenji Tanaka,K. Toi,T. Tokuzawa,Katsuyoshi Tsumori,Ichihiro Yamada,Hiroshi Yamada,Soichiro Yamaguchi,Masayuki Yokoyama,K.Y. Watanabe,T. Watari,R. Akiyama,Hirotaka Chikaraishi,K. Haba,Shinji Hamaguchi,S. Iima,Shinsaku Imagawa,N. Inoue,K. Iwamoto,S. Kitagawa,Yuusuke Kubota,J. Kodaira,Ryuji Maekawa,Toshiyuki Mito,Arata Nishimura,Y. Takita,C. Takahashi,Kazuya Takahata,Kenji Yamauchi,Hitoshi Tamura,T. Tsuzuki,S. Yamada,Nagato Yanagi,H. Yonezu,Y. Hamada,K. Matsuoka,K. Murai,K. Ohkubo,I. Ohtake,M. Okamoto,S. Sato,Takashi Satow,S. Sudo,S. Tanahashi,K. Yamazaki,Masami Fujiwara,Takuya Nagasaka,O. Motojima +93 more
Journal ArticleDOI
Initial physics achievements of large helical device experiments
Osamu Motojima,Hiroshi Yamada,Akio Komori,Nobuyoshi Ohyabu,Kazuo Kawahata,Osamu Kaneko,Suguru Masuzaki,Akira Ejiri,Masahiko Emoto,Hisamichi Funaba,Motoshi Goto,Katsumi Ida,Hiroshi Idei,Shigeru Inagaki,N. Inoue,Shinichiro Kado,Shin Kubo,Ryuhei Kumazawa,Takashi Minami,J. Miyazawa,Tomohiro Morisaki,S. Morita,S. Murakami,Sadatsugu Muto,Takashi Mutoh,Yoshio Nagayama,Y. Nakamura,Hideya Nakanishi,Kazumichi Narihara,K. Nishimura,N. Noda,T. Kobuchi,Satoshi Ohdachi,Yoshihide Oka,Masaki Osakabe,T. Ozaki,Byron J. Peterson,Akio Sagara,Satoru Sakakibara,Ryuichi Sakamoto,H. Sasao,Mamiko Sasao,Kuninori Sato,M. Sato,Tetsuo Seki,Takashi Shimozuma,Mamoru Shoji,Hajime Suzuki,Yasuhiko Takeiri,Kenji Tanaka,Kazuo Toi,Tokihiko Tokuzawa,Katsuyoshi Tsumori,K. Tsuzuki,Ichihiro Yamada,Soichiro Yamaguchi,Masayuki Yokoyama,K.Y. Watanabe,T. Watari,Yasuji Hamada,Keisuke Matsuoka,K. Murai,Kunizo Ohkubo,I. Ohtake,Masao Okamoto,S. Satoh,Takashi Satow,Shigeru Sudo,S. Tanahashi,K. Yamazaki,M. Fujiwara,A. Iiyoshi +71 more
TL;DR: The Large Helical Device (LHD) experiments [O. Motojima et al. as discussed by the authors ] have started this year after a successful eight-year construction and test period of the fully superconducting facility.
Journal ArticleDOI
New advanced operational regime on the W7-AS stellarator
K. McCormick,P. Grigull,R. Burhenn,R. Brakel,H. Ehmler,Y. Feng,F. Gadelmeier,L. Giannone,D. Hildebrandt,M. Hirsch,R. Jaenicke,J. Kisslinger,T. Klinger,S. Klose,J. P. Knauer,R. König,Georg Kühner,H. P. Laqua,Dirk Naujoks,H. Niedermeyer,E. Pasch,N. Ramasubramanian,N. Rust,F. Sardei,Friedrich E. Wagner,A. Weller,U. Wenzel,A. Werner +27 more
TL;DR: A promising new plasma operational regime on the Wendelstein stellarator W7-AS has been discovered, extant above a threshold density and characterized by flat density profiles, high energy and low impurity confinement times, and edge-localized radiation.
Journal ArticleDOI
Goal and Achievements of Large Helical Device Project
A. Komori,Hiroshi Yamada,Shinsaku Imagawa,Osamu Kaneko,Kazuo Kawahata,K. Mutoh,Nobuyoshi Ohyabu,Y. Takeiri,Katsumi Ida,Toshiyuki Mito,Yoshio Nagayama,Satoru Sakakibara,Ryuichi Sakamoto,Takashi Shimozuma,K.Y. Watanabe,O. Motojima +15 more
TL;DR: The Large Helical Device (LHD) is a heliotron-type device employing large-scale superconducting magnets to enable advanced studies of netcurrent-free plasmas as mentioned in this paper.
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