Development of net-current free heliotron plasmas in the Large Helical Device

A. Komori; H. Yamada; S. Sakakibara; O. Kaneko; K. Kawahata; T. Mutoh; N. Ohyabu; S. Imagawa; K. Ida; Y. Nagayama; T. Shimozuma; K. Y. Watanabe; T. Mito; M. Kobayashi; K. Nagaoka; R. Sakamoto; N. Yoshida; S. Ohdachi; N. Ashikawa; Y. Feng; T. Fukuda; H. Igami; S. Inagaki; H. Kasahara; S. Kubo; R. Kumazawa; O. Mitarai; S. Murakami; Yuji Nakamura; M. Nishiura; T. Hino; S. Masuzaki; K. Tanaka; K. Toi; A. Weller; M. Yoshinuma; Y. Narushima; N. Ohno; T. Okamura; N. Tamura; K. Saito; T. Seki; S. Sudo; H. Tanaka; T. Tokuzawa; N. Yanagi; M. Yokoyama; Y. Yoshimura; T. Akiyama; H. Chikaraishi; M. Chowdhuri; M. Emoto; N. Ezumi; H. Funaba; L. Garcia; P. Goncharov; M. Goto; K. Ichiguchi; M. Ichimura; H. Idei; T. Ido; S. Iio; K. Ikeda; M. Irie; A. Isayama; T. Ishigooka; M. Isobe; T. Ito; K. Itoh; A. Iwamae; S. Hamaguchi; T. Hamajima; S. Kitajima; S. Kado; D. Kato; T. Kato; S. Kobayashi; K. Kondo; S. Masamune; Y. Matsumoto; N. Matsunami; T. Minami; C. Michael; H. Miura; J. Miyazawa; N. Mizuguchi; T. Morisaki; S. Morita; G. Motojima; I. Murakami; S. Muto; K. Nagasaki; N. Nakajima; Y. Nakamura; H. Nakanishi; H. Nakano; K. Narihara; A. Nishimura; H. Nishimura; K. Nishimura; S. Nishimura; N. Nishino; T. Notake; T. Obana; K. Ogawa; Y. Oka; T. Ohishi; H. Okada; K. Okuno; K. Ono; M. Osakabe; T. Osako; T. Ozaki; B. J. Peterson; H. Sakaue; M. Sasao; S. Satake; K. Sato; M. Sato; A. Shimizu; M. Shiratani; M. Shoji; H. Sugama; C. Suzuki; Y. Suzuki; K. Takahata; H. Takahashi; Y. Takase; Y. Takeiri; H. Takenaga; S. Toda; Y. Todo; M. Tokitani; H. Tsuchiya; K. Tsumori; H. Urano; E. Veshchev; F. Watanabe; T. Watanabe; T. H. Watanabe; I. Yamada; S. Yamada; O. Yamagishi; S. Yamaguchi; S. Yoshimura; T. Yoshinaga; O. Motojima

doi:10.1088/0029-5515/49/10/104015

Development of net-current free heliotron plasmas in the Large Helical Device

A. Komori, H. Yamada, S. Sakakibara, O. Kaneko, K. Kawahata, T. Mutoh, N. Ohyabu, S. Imagawa, K. Ida, Y. Nagayama, T. Shimozuma, K. Y. Watanabe, T. Mito, M. Kobayashi, K. Nagaoka, R. Sakamoto, N. Yoshida, S. Ohdachi, N. Ashikawa, Y. FengT. Fukuda, H. Igami, S. Inagaki, H. Kasahara, S. Kubo, R. Kumazawa, O. Mitarai, S. Murakami, Yuji Nakamura, M. Nishiura, T. Hino, S. Masuzaki, K. Tanaka, K. Toi, A. Weller, M. Yoshinuma, Y. Narushima, N. Ohno, T. Okamura, N. Tamura, K. Saito, T. Seki, S. Sudo, H. Tanaka, T. Tokuzawa, N. Yanagi, M. Yokoyama, Y. Yoshimura, T. Akiyama, H. Chikaraishi, M. Chowdhuri, M. Emoto, N. Ezumi, H. Funaba, L. Garcia, P. Goncharov, M. Goto, K. Ichiguchi, M. Ichimura, H. Idei, T. Ido, S. Iio, K. Ikeda, M. Irie, A. Isayama, T. Ishigooka, M. Isobe, T. Ito, K. Itoh, A. Iwamae, S. Hamaguchi, T. Hamajima, S. Kitajima, S. Kado, D. Kato, T. Kato, S. Kobayashi, K. Kondo, S. Masamune, Y. Matsumoto, N. Matsunami, T. Minami, C. Michael, H. Miura, J. Miyazawa, N. Mizuguchi, T. Morisaki, S. Morita, G. Motojima, I. Murakami, S. Muto, K. Nagasaki, N. Nakajima, Y. Nakamura, H. Nakanishi, H. Nakano, K. Narihara, A. Nishimura, H. Nishimura, K. Nishimura, S. Nishimura, N. Nishino, T. Notake, T. Obana, K. Ogawa, Y. Oka, T. Ohishi, H. Okada, K. Okuno, K. Ono, M. Osakabe, T. Osako, T. Ozaki, B. J. Peterson, H. Sakaue, M. Sasao, S. Satake, K. Sato, M. Sato, A. Shimizu, M. Shiratani, M. Shoji, H. Sugama, C. Suzuki, Y. Suzuki, K. Takahata, H. Takahashi, Y. Takase, Y. Takeiri, H. Takenaga, S. Toda, Y. Todo, M. Tokitani, H. Tsuchiya, K. Tsumori, H. Urano, E. Veshchev, F. Watanabe, T. Watanabe, T. H. Watanabe, I. Yamada, S. Yamada, O. Yamagishi, S. Yamaguchi, S. Yoshimura, T. Yoshinaga, O. Motojima

ENG - Quantum Science and Energy Engineering

Research output: Contribution to journal › Article › peer-review

54 Citations (Scopus)

Abstract

Remarkable progress in the physical parameters of net-current free plasmas has been made in the Large Helical Device (LHD) since the last Fusion Energy Conference in Chengdu, 2006 (Motojima et al 2007 Nucl. Fusion 47 S668). The beta value reached 5% and a high-beta state beyond 4.5% from the diamagnetic measurement has been maintained for longer than 100 times the energy confinement time. The density and temperature regimes have also been extended. The central density has exceeded 1 × 10²¹ m^-3 due to the formation of an internal diffusion barrier. The ion temperature has reached 5.2 keV at the density of 1.6 × 10¹⁹ m^-3, which is associated with the suppression of ion heat conduction loss. Although these parameters have been obtained in separated discharges, each fusion-reactor relevant parameter has elucidated the potential of net-current free heliotron plasmas. Diversified studies in recent LHD experiments are reviewed in this paper.

Original language	English
Article number	104015
Journal	Nuclear Fusion
Volume	49
Issue number	10
DOIs	https://doi.org/10.1088/0029-5515/49/10/104015
Publication status	Published - 2009

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10.1088/0029-5515/49/10/104015

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Komori, A., Yamada, H., Sakakibara, S., Kaneko, O., Kawahata, K., Mutoh, T., Ohyabu, N., Imagawa, S., Ida, K., Nagayama, Y., Shimozuma, T., Watanabe, K. Y., Mito, T., Kobayashi, M., Nagaoka, K., Sakamoto, R., Yoshida, N., Ohdachi, S., Ashikawa, N., ... Motojima, O. (2009). Development of net-current free heliotron plasmas in the Large Helical Device. Nuclear Fusion, 49(10), Article 104015. https://doi.org/10.1088/0029-5515/49/10/104015

@article{e67a2a4403124415b425993ef4c406c4,

title = "Development of net-current free heliotron plasmas in the Large Helical Device",

abstract = "Remarkable progress in the physical parameters of net-current free plasmas has been made in the Large Helical Device (LHD) since the last Fusion Energy Conference in Chengdu, 2006 (Motojima et al 2007 Nucl. Fusion 47 S668). The beta value reached 5% and a high-beta state beyond 4.5% from the diamagnetic measurement has been maintained for longer than 100 times the energy confinement time. The density and temperature regimes have also been extended. The central density has exceeded 1 × 1021 m-3 due to the formation of an internal diffusion barrier. The ion temperature has reached 5.2 keV at the density of 1.6 × 1019 m-3, which is associated with the suppression of ion heat conduction loss. Although these parameters have been obtained in separated discharges, each fusion-reactor relevant parameter has elucidated the potential of net-current free heliotron plasmas. Diversified studies in recent LHD experiments are reviewed in this paper.",

author = "A. Komori and H. Yamada and S. Sakakibara and O. Kaneko and K. Kawahata and T. Mutoh and N. Ohyabu and S. Imagawa and K. Ida and Y. Nagayama and T. Shimozuma and Watanabe, {K. Y.} and T. Mito and M. Kobayashi and K. Nagaoka and R. Sakamoto and N. Yoshida and S. Ohdachi and N. Ashikawa and Y. Feng and T. Fukuda and H. Igami and S. Inagaki and H. Kasahara and S. Kubo and R. Kumazawa and O. Mitarai and S. Murakami and Yuji Nakamura and M. Nishiura and T. Hino and S. Masuzaki and K. Tanaka and K. Toi and A. Weller and M. Yoshinuma and Y. Narushima and N. Ohno and T. Okamura and N. Tamura and K. Saito and T. Seki and S. Sudo and H. Tanaka and T. Tokuzawa and N. Yanagi and M. Yokoyama and Y. Yoshimura and T. Akiyama and H. Chikaraishi and M. Chowdhuri and M. Emoto and N. Ezumi and H. Funaba and L. Garcia and P. Goncharov and M. Goto and K. Ichiguchi and M. Ichimura and H. Idei and T. Ido and S. Iio and K. Ikeda and M. Irie and A. Isayama and T. Ishigooka and M. Isobe and T. Ito and K. Itoh and A. Iwamae and S. Hamaguchi and T. Hamajima and S. Kitajima and S. Kado and D. Kato and T. Kato and S. Kobayashi and K. Kondo and S. Masamune and Y. Matsumoto and N. Matsunami and T. Minami and C. Michael and H. Miura and J. Miyazawa and N. Mizuguchi and T. Morisaki and S. Morita and G. Motojima and I. Murakami and S. Muto and K. Nagasaki and N. Nakajima and Y. Nakamura and H. Nakanishi and H. Nakano and K. Narihara and A. Nishimura and H. Nishimura and K. Nishimura and S. Nishimura and N. Nishino and T. Notake and T. Obana and K. Ogawa and Y. Oka and T. Ohishi and H. Okada and K. Okuno and K. Ono and M. Osakabe and T. Osako and T. Ozaki and Peterson, {B. J.} and H. Sakaue and M. Sasao and S. Satake and K. Sato and M. Sato and A. Shimizu and M. Shiratani and M. Shoji and H. Sugama and C. Suzuki and Y. Suzuki and K. Takahata and H. Takahashi and Y. Takase and Y. Takeiri and H. Takenaga and S. Toda and Y. Todo and M. Tokitani and H. Tsuchiya and K. Tsumori and H. Urano and E. Veshchev and F. Watanabe and T. Watanabe and Watanabe, {T. H.} and I. Yamada and S. Yamada and O. Yamagishi and S. Yamaguchi and S. Yoshimura and T. Yoshinaga and O. Motojima",

year = "2009",

doi = "10.1088/0029-5515/49/10/104015",

language = "English",

volume = "49",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing Ltd.",

number = "10",

}

Komori, A, Yamada, H, Sakakibara, S, Kaneko, O, Kawahata, K, Mutoh, T, Ohyabu, N, Imagawa, S, Ida, K, Nagayama, Y, Shimozuma, T, Watanabe, KY, Mito, T, Kobayashi, M, Nagaoka, K, Sakamoto, R, Yoshida, N, Ohdachi, S, Ashikawa, N, Feng, Y, Fukuda, T, Igami, H, Inagaki, S, Kasahara, H, Kubo, S, Kumazawa, R, Mitarai, O, Murakami, S, Nakamura, Y, Nishiura, M, Hino, T, Masuzaki, S, Tanaka, K, Toi, K, Weller, A, Yoshinuma, M, Narushima, Y, Ohno, N, Okamura, T, Tamura, N, Saito, K, Seki, T, Sudo, S, Tanaka, H, Tokuzawa, T, Yanagi, N, Yokoyama, M, Yoshimura, Y, Akiyama, T, Chikaraishi, H, Chowdhuri, M, Emoto, M, Ezumi, N, Funaba, H, Garcia, L, Goncharov, P, Goto, M, Ichiguchi, K, Ichimura, M, Idei, H, Ido, T, Iio, S, Ikeda, K, Irie, M, Isayama, A, Ishigooka, T, Isobe, M, Ito, T, Itoh, K, Iwamae, A, Hamaguchi, S, Hamajima, T, Kitajima, S, Kado, S, Kato, D, Kato, T, Kobayashi, S, Kondo, K, Masamune, S, Matsumoto, Y, Matsunami, N, Minami, T, Michael, C, Miura, H, Miyazawa, J, Mizuguchi, N, Morisaki, T, Morita, S, Motojima, G, Murakami, I, Muto, S, Nagasaki, K, Nakajima, N, Nakamura, Y, Nakanishi, H, Nakano, H, Narihara, K, Nishimura, A, Nishimura, H, Nishimura, K, Nishimura, S, Nishino, N, Notake, T, Obana, T, Ogawa, K, Oka, Y, Ohishi, T, Okada, H, Okuno, K, Ono, K, Osakabe, M, Osako, T, Ozaki, T, Peterson, BJ, Sakaue, H, Sasao, M, Satake, S, Sato, K, Sato, M, Shimizu, A, Shiratani, M, Shoji, M, Sugama, H, Suzuki, C, Suzuki, Y, Takahata, K, Takahashi, H, Takase, Y, Takeiri, Y, Takenaga, H, Toda, S, Todo, Y, Tokitani, M, Tsuchiya, H, Tsumori, K, Urano, H, Veshchev, E, Watanabe, F, Watanabe, T, Watanabe, TH, Yamada, I, Yamada, S, Yamagishi, O, Yamaguchi, S, Yoshimura, S, Yoshinaga, T & Motojima, O 2009, 'Development of net-current free heliotron plasmas in the Large Helical Device', Nuclear Fusion, vol. 49, no. 10, 104015. https://doi.org/10.1088/0029-5515/49/10/104015

TY - JOUR

T1 - Development of net-current free heliotron plasmas in the Large Helical Device

AU - Komori, A.

AU - Yamada, H.

AU - Sakakibara, S.

AU - Kaneko, O.

AU - Kawahata, K.

AU - Mutoh, T.

AU - Ohyabu, N.

AU - Imagawa, S.

AU - Ida, K.

AU - Nagayama, Y.

AU - Shimozuma, T.

AU - Watanabe, K. Y.

AU - Mito, T.

AU - Kobayashi, M.

AU - Nagaoka, K.

AU - Sakamoto, R.

AU - Yoshida, N.

AU - Ohdachi, S.

AU - Ashikawa, N.

AU - Feng, Y.

AU - Fukuda, T.

AU - Igami, H.

AU - Inagaki, S.

AU - Kasahara, H.

AU - Kubo, S.

AU - Kumazawa, R.

AU - Mitarai, O.

AU - Murakami, S.

AU - Nakamura, Yuji

AU - Nishiura, M.

AU - Hino, T.

AU - Masuzaki, S.

AU - Tanaka, K.

AU - Toi, K.

AU - Weller, A.

AU - Yoshinuma, M.

AU - Narushima, Y.

AU - Ohno, N.

AU - Okamura, T.

AU - Tamura, N.

AU - Saito, K.

AU - Seki, T.

AU - Sudo, S.

AU - Tanaka, H.

AU - Tokuzawa, T.

AU - Yanagi, N.

AU - Yokoyama, M.

AU - Yoshimura, Y.

AU - Akiyama, T.

AU - Chikaraishi, H.

AU - Chowdhuri, M.

AU - Emoto, M.

AU - Ezumi, N.

AU - Funaba, H.

AU - Garcia, L.

AU - Goncharov, P.

AU - Goto, M.

AU - Ichiguchi, K.

AU - Ichimura, M.

AU - Idei, H.

AU - Ido, T.

AU - Iio, S.

AU - Ikeda, K.

AU - Irie, M.

AU - Isayama, A.

AU - Ishigooka, T.

AU - Isobe, M.

AU - Ito, T.

AU - Itoh, K.

AU - Iwamae, A.

AU - Hamaguchi, S.

AU - Hamajima, T.

AU - Kitajima, S.

AU - Kado, S.

AU - Kato, D.

AU - Kato, T.

AU - Kobayashi, S.

AU - Kondo, K.

AU - Masamune, S.

AU - Matsumoto, Y.

AU - Matsunami, N.

AU - Minami, T.

AU - Michael, C.

AU - Miura, H.

AU - Miyazawa, J.

AU - Mizuguchi, N.

AU - Morisaki, T.

AU - Morita, S.

AU - Motojima, G.

AU - Murakami, I.

AU - Muto, S.

AU - Nagasaki, K.

AU - Nakajima, N.

AU - Nakamura, Y.

AU - Nakanishi, H.

AU - Nakano, H.

AU - Narihara, K.

AU - Nishimura, A.

AU - Nishimura, H.

AU - Nishimura, K.

AU - Nishimura, S.

AU - Nishino, N.

AU - Notake, T.

AU - Obana, T.

AU - Ogawa, K.

AU - Oka, Y.

AU - Ohishi, T.

AU - Okada, H.

AU - Okuno, K.

AU - Ono, K.

AU - Osakabe, M.

AU - Osako, T.

AU - Ozaki, T.

AU - Peterson, B. J.

AU - Sakaue, H.

AU - Sasao, M.

AU - Satake, S.

AU - Sato, K.

AU - Sato, M.

AU - Shimizu, A.

AU - Shiratani, M.

AU - Shoji, M.

AU - Sugama, H.

AU - Suzuki, C.

AU - Suzuki, Y.

AU - Takahata, K.

AU - Takahashi, H.

AU - Takase, Y.

AU - Takeiri, Y.

AU - Takenaga, H.

AU - Toda, S.

AU - Todo, Y.

AU - Tokitani, M.

AU - Tsuchiya, H.

AU - Tsumori, K.

AU - Urano, H.

AU - Veshchev, E.

AU - Watanabe, F.

AU - Watanabe, T.

AU - Watanabe, T. H.

AU - Yamada, I.

AU - Yamada, S.

AU - Yamagishi, O.

AU - Yamaguchi, S.

AU - Yoshimura, S.

AU - Yoshinaga, T.

AU - Motojima, O.

PY - 2009

Y1 - 2009

N2 - Remarkable progress in the physical parameters of net-current free plasmas has been made in the Large Helical Device (LHD) since the last Fusion Energy Conference in Chengdu, 2006 (Motojima et al 2007 Nucl. Fusion 47 S668). The beta value reached 5% and a high-beta state beyond 4.5% from the diamagnetic measurement has been maintained for longer than 100 times the energy confinement time. The density and temperature regimes have also been extended. The central density has exceeded 1 × 1021 m-3 due to the formation of an internal diffusion barrier. The ion temperature has reached 5.2 keV at the density of 1.6 × 1019 m-3, which is associated with the suppression of ion heat conduction loss. Although these parameters have been obtained in separated discharges, each fusion-reactor relevant parameter has elucidated the potential of net-current free heliotron plasmas. Diversified studies in recent LHD experiments are reviewed in this paper.

AB - Remarkable progress in the physical parameters of net-current free plasmas has been made in the Large Helical Device (LHD) since the last Fusion Energy Conference in Chengdu, 2006 (Motojima et al 2007 Nucl. Fusion 47 S668). The beta value reached 5% and a high-beta state beyond 4.5% from the diamagnetic measurement has been maintained for longer than 100 times the energy confinement time. The density and temperature regimes have also been extended. The central density has exceeded 1 × 1021 m-3 due to the formation of an internal diffusion barrier. The ion temperature has reached 5.2 keV at the density of 1.6 × 1019 m-3, which is associated with the suppression of ion heat conduction loss. Although these parameters have been obtained in separated discharges, each fusion-reactor relevant parameter has elucidated the potential of net-current free heliotron plasmas. Diversified studies in recent LHD experiments are reviewed in this paper.

UR - http://www.scopus.com/inward/record.url?scp=70349138862&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70349138862&partnerID=8YFLogxK

U2 - 10.1088/0029-5515/49/10/104015

DO - 10.1088/0029-5515/49/10/104015

M3 - Article

AN - SCOPUS:70349138862

SN - 0029-5515

VL - 49

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 10

M1 - 104015

ER -

Development of net-current free heliotron plasmas in the Large Helical Device

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