Overview of progress in LHD experiments

A. Komori; T. Morisaki; T. Mutoh; S. Sakakibara; Y. Takeiri; R. Kumazawa; S. Kubo; K. Ida; S. Morita; K. Narihara; T. Shimozuma; K. Tanaka; K. Y. Watanabe; H. Yamada; M. Yoshinuma; T. Akiyama; N. Ashikawa; M. Emoto; H. Funaba; M. Goto; T. Ido; K. Ikeda; S. Inagaki; M. Isobe; H. Igami; K. Itoh; O. Kaneko; K. Kawahata; T. Kobuchi; S. Masuzaki; K. Matsuoka; T. Minami; J. Miyazawa; S. Muto; Y. Nagayama; Y. Nakamura; H. Nakanishi; Y. Narushima; K. Nishimura; M. Nishiura; A. Nishizawa; N. Noda; S. Ohdachi; Y. Oka; M. Osakabe; N. Ohyabu; T. Ozaki; B. J. Peterson; A. Sagara; K. Saito; R. Sakamoto; K. Sato; M. Sato; T. Seki; M. Shoji; S. Sudo; N. Tamura; K. Toi; T. Tokuzawa; K. Tsumori; T. Uda; T. Watari; I. Yamada; M. Yokoyama; Y. Yoshimura; O. Motojima; C. D. Beidler; T. Fujita; A. Isayama; Y. Sakamoto; H. Takenaga; P. Goncharov; K. Ishii; M. Sakamoto; S. Murakami; T. Notake; N. Takeuchi; S. Okajima; M. Sasao

doi:10.13182/FST06-A1229

Overview of progress in LHD experiments

A. Komori, T. Morisaki, T. Mutoh, S. Sakakibara, Y. Takeiri, R. Kumazawa, S. Kubo, K. Ida, S. Morita, K. Narihara, T. Shimozuma, K. Tanaka, K. Y. Watanabe, H. Yamada, M. Yoshinuma, T. Akiyama, N. Ashikawa, M. Emoto, H. Funaba, M. GotoT. Ido, K. Ikeda, S. Inagaki, M. Isobe, H. Igami, K. Itoh, O. Kaneko, K. Kawahata, T. Kobuchi, S. Masuzaki, K. Matsuoka, T. Minami, J. Miyazawa, S. Muto, Y. Nagayama, Y. Nakamura, H. Nakanishi, Y. Narushima, K. Nishimura, M. Nishiura, A. Nishizawa, N. Noda, S. Ohdachi, Y. Oka, M. Osakabe, N. Ohyabu, T. Ozaki, B. J. Peterson, A. Sagara, K. Saito, R. Sakamoto, K. Sato, M. Sato, T. Seki, M. Shoji, S. Sudo, N. Tamura, K. Toi, T. Tokuzawa, K. Tsumori, T. Uda, T. Watari, I. Yamada, M. Yokoyama, Y. Yoshimura, O. Motojima, C. D. Beidler, T. Fujita, A. Isayama, Y. Sakamoto, H. Takenaga, P. Goncharov, K. Ishii, M. Sakamoto, S. Murakami, T. Notake, N. Takeuchi, S. Okajima, M. Sasao

Research output: Contribution to journal › Article

18 Citations (Scopus)

Abstract

Remarkable progress to access the reactor-relevant regime has been made in a recent experiment in the Large Helical Device. Optimizing the rotational transform, the average beta value of 4.3%, which is the highest record among helical devices, was achieved. The high-performance plasma with a fusion triple product up to ∼2.2×10¹⁹ m^-3·keV·s was sustained for >7 s by repetitive hydrogen pellet injection. With regard to steady-state operation, which is one of the key issues to realize a fusion reactor, discharges for >30 min were successfully sustained by ion cyclotron range of frequency heating with the aid of the magnetic axis swing technique to reduce the heat load to the plasma-facing component. In the discharge, the total input energy to the plasma reached 1.3 GJ, which also established a new record.

Original language	English
Pages (from-to)	136-145
Number of pages	10
Journal	Fusion Science and Technology
Volume	50
Issue number	2
DOIs	https://doi.org/10.13182/FST06-A1229
Publication status	Published - Aug 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Nuclear and High Energy Physics
Nuclear Energy and Engineering
Materials Science(all)
Mechanical Engineering

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Komori, A., Morisaki, T., Mutoh, T., Sakakibara, S., Takeiri, Y., Kumazawa, R., Kubo, S., Ida, K., Morita, S., Narihara, K., Shimozuma, T., Tanaka, K., Watanabe, K. Y., Yamada, H., Yoshinuma, M., Akiyama, T., Ashikawa, N., Emoto, M., Funaba, H., ... Sasao, M. (2006). Overview of progress in LHD experiments. Fusion Science and Technology, 50(2), 136-145. https://doi.org/10.13182/FST06-A1229

Overview of progress in LHD experiments. / Komori, A.; Morisaki, T.; Mutoh, T.; Sakakibara, S.; Takeiri, Y.; Kumazawa, R.; Kubo, S.; Ida, K.; Morita, S.; Narihara, K.; Shimozuma, T.; Tanaka, K.; Watanabe, K. Y.; Yamada, H.; Yoshinuma, M.; Akiyama, T.; Ashikawa, N.; Emoto, M.; Funaba, H.; Goto, M.; Ido, T.; Ikeda, K.; Inagaki, S.; Isobe, M.; Igami, H.; Itoh, K.; Kaneko, O.; Kawahata, K.; Kobuchi, T.; Masuzaki, S.; Matsuoka, K.; Minami, T.; Miyazawa, J.; Muto, S.; Nagayama, Y.; Nakamura, Y.; Nakanishi, H.; Narushima, Y.; Nishimura, K.; Nishiura, M.; Nishizawa, A.; Noda, N.; Ohdachi, S.; Oka, Y.; Osakabe, M.; Ohyabu, N.; Ozaki, T.; Peterson, B. J.; Sagara, A.; Saito, K.; Sakamoto, R.; Sato, K.; Sato, M.; Seki, T.; Shoji, M.; Sudo, S.; Tamura, N.; Toi, K.; Tokuzawa, T.; Tsumori, K.; Uda, T.; Watari, T.; Yamada, I.; Yokoyama, M.; Yoshimura, Y.; Motojima, O.; Beidler, C. D.; Fujita, T.; Isayama, A.; Sakamoto, Y.; Takenaga, H.; Goncharov, P.; Ishii, K.; Sakamoto, M.; Murakami, S.; Notake, T.; Takeuchi, N.; Okajima, S.; Sasao, M.

In: Fusion Science and Technology, Vol. 50, No. 2, 08.2006, p. 136-145.

Research output: Contribution to journal › Article

Komori, A, Morisaki, T, Mutoh, T, Sakakibara, S, Takeiri, Y, Kumazawa, R, Kubo, S, Ida, K, Morita, S, Narihara, K, Shimozuma, T, Tanaka, K, Watanabe, KY, Yamada, H, Yoshinuma, M, Akiyama, T, Ashikawa, N, Emoto, M, Funaba, H, Goto, M, Ido, T, Ikeda, K, Inagaki, S, Isobe, M, Igami, H, Itoh, K, Kaneko, O, Kawahata, K, Kobuchi, T, Masuzaki, S, Matsuoka, K, Minami, T, Miyazawa, J, Muto, S, Nagayama, Y, Nakamura, Y, Nakanishi, H, Narushima, Y, Nishimura, K, Nishiura, M, Nishizawa, A, Noda, N, Ohdachi, S, Oka, Y, Osakabe, M, Ohyabu, N, Ozaki, T, Peterson, BJ, Sagara, A, Saito, K, Sakamoto, R, Sato, K, Sato, M, Seki, T, Shoji, M, Sudo, S, Tamura, N, Toi, K, Tokuzawa, T, Tsumori, K, Uda, T, Watari, T, Yamada, I, Yokoyama, M, Yoshimura, Y, Motojima, O, Beidler, CD, Fujita, T, Isayama, A, Sakamoto, Y, Takenaga, H, Goncharov, P, Ishii, K, Sakamoto, M, Murakami, S, Notake, T, Takeuchi, N, Okajima, S & Sasao, M 2006, 'Overview of progress in LHD experiments', Fusion Science and Technology, vol. 50, no. 2, pp. 136-145. https://doi.org/10.13182/FST06-A1229

Komori, A. ; Morisaki, T. ; Mutoh, T. ; Sakakibara, S. ; Takeiri, Y. ; Kumazawa, R. ; Kubo, S. ; Ida, K. ; Morita, S. ; Narihara, K. ; Shimozuma, T. ; Tanaka, K. ; Watanabe, K. Y. ; Yamada, H. ; Yoshinuma, M. ; Akiyama, T. ; Ashikawa, N. ; Emoto, M. ; Funaba, H. ; Goto, M. ; Ido, T. ; Ikeda, K. ; Inagaki, S. ; Isobe, M. ; Igami, H. ; Itoh, K. ; Kaneko, O. ; Kawahata, K. ; Kobuchi, T. ; Masuzaki, S. ; Matsuoka, K. ; Minami, T. ; Miyazawa, J. ; Muto, S. ; Nagayama, Y. ; Nakamura, Y. ; Nakanishi, H. ; Narushima, Y. ; Nishimura, K. ; Nishiura, M. ; Nishizawa, A. ; Noda, N. ; Ohdachi, S. ; Oka, Y. ; Osakabe, M. ; Ohyabu, N. ; Ozaki, T. ; Peterson, B. J. ; Sagara, A. ; Saito, K. ; Sakamoto, R. ; Sato, K. ; Sato, M. ; Seki, T. ; Shoji, M. ; Sudo, S. ; Tamura, N. ; Toi, K. ; Tokuzawa, T. ; Tsumori, K. ; Uda, T. ; Watari, T. ; Yamada, I. ; Yokoyama, M. ; Yoshimura, Y. ; Motojima, O. ; Beidler, C. D. ; Fujita, T. ; Isayama, A. ; Sakamoto, Y. ; Takenaga, H. ; Goncharov, P. ; Ishii, K. ; Sakamoto, M. ; Murakami, S. ; Notake, T. ; Takeuchi, N. ; Okajima, S. ; Sasao, M. / Overview of progress in LHD experiments. In: Fusion Science and Technology. 2006 ; Vol. 50, No. 2. pp. 136-145.

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title = "Overview of progress in LHD experiments",

abstract = "Remarkable progress to access the reactor-relevant regime has been made in a recent experiment in the Large Helical Device. Optimizing the rotational transform, the average beta value of 4.3%, which is the highest record among helical devices, was achieved. The high-performance plasma with a fusion triple product up to ∼2.2×1019 m-3·keV·s was sustained for >7 s by repetitive hydrogen pellet injection. With regard to steady-state operation, which is one of the key issues to realize a fusion reactor, discharges for >30 min were successfully sustained by ion cyclotron range of frequency heating with the aid of the magnetic axis swing technique to reduce the heat load to the plasma-facing component. In the discharge, the total input energy to the plasma reached 1.3 GJ, which also established a new record.",

author = "A. Komori and T. Morisaki and T. Mutoh and S. Sakakibara and Y. Takeiri and R. Kumazawa and S. Kubo and K. Ida and S. Morita and K. Narihara and T. Shimozuma and K. Tanaka and Watanabe, {K. Y.} and H. Yamada and M. Yoshinuma and T. Akiyama and N. Ashikawa and M. Emoto and H. Funaba and M. Goto and T. Ido and K. Ikeda and S. Inagaki and M. Isobe and H. Igami and K. Itoh and O. Kaneko and K. Kawahata and T. Kobuchi and S. Masuzaki and K. Matsuoka and T. Minami and J. Miyazawa and S. Muto and Y. Nagayama and Y. Nakamura and H. Nakanishi and Y. Narushima and K. Nishimura and M. Nishiura and A. Nishizawa and N. Noda and S. Ohdachi and Y. Oka and M. Osakabe and N. Ohyabu and T. Ozaki and Peterson, {B. J.} and A. Sagara and K. Saito and R. Sakamoto and K. Sato and M. Sato and T. Seki and M. Shoji and S. Sudo and N. Tamura and K. Toi and T. Tokuzawa and K. Tsumori and T. Uda and T. Watari and I. Yamada and M. Yokoyama and Y. Yoshimura and O. Motojima and Beidler, {C. D.} and T. Fujita and A. Isayama and Y. Sakamoto and H. Takenaga and P. Goncharov and K. Ishii and M. Sakamoto and S. Murakami and T. Notake and N. Takeuchi and S. Okajima and M. Sasao",

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AU - Kumazawa, R.

AU - Kubo, S.

AU - Ida, K.

AU - Morita, S.

AU - Narihara, K.

AU - Shimozuma, T.

AU - Tanaka, K.

AU - Watanabe, K. Y.

AU - Yamada, H.

AU - Yoshinuma, M.

AU - Akiyama, T.

AU - Ashikawa, N.

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AU - Funaba, H.

AU - Goto, M.

AU - Ido, T.

AU - Ikeda, K.

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AU - Isobe, M.

AU - Igami, H.

AU - Itoh, K.

AU - Kaneko, O.

AU - Kawahata, K.

AU - Kobuchi, T.

AU - Masuzaki, S.

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AU - Minami, T.

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AU - Muto, S.

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AU - Nakamura, Y.

AU - Nakanishi, H.

AU - Narushima, Y.

AU - Nishimura, K.

AU - Nishiura, M.

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AU - Noda, N.

AU - Ohdachi, S.

AU - Oka, Y.

AU - Osakabe, M.

AU - Ohyabu, N.

AU - Ozaki, T.

AU - Peterson, B. J.

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AU - Isayama, A.

AU - Sakamoto, Y.

AU - Takenaga, H.

AU - Goncharov, P.

AU - Ishii, K.

AU - Sakamoto, M.

AU - Murakami, S.

AU - Notake, T.

AU - Takeuchi, N.

AU - Okajima, S.

AU - Sasao, M.

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