Overview of transport and MHD stability study: Focusing on the impact of magnetic field topology in the Large Helical Device

K. Ida; K. Nagaoka; Inagaki Shigeru; H. Kasahara; T. Evans; M. Yoshinuma; K. Kamiya; S. Ohdach; M. Osakabe; M. Kobayashi; S. Sudo; K. Itoh; T. Akiyama; M. Emoto; A. Dinklage; X. Du; K. Fujii; M. Goto; T. Goto; M. Hasuo; C. Hidalgo; K. Ichiguchi; A. Ishizawa; M. Jakubowski; G. Kawamura; D. Kato; S. Morita; K. Mukai; I. Murakami; S. Murakami; Y. Narushima; M. Nunami; N. Ohno; N. Pablant; S. Sakakibara; T. Seki; T. Shimozuma; M. Shoji; K. Tanaka; T. Tokuzawa; Y. Todo; H. Wang; M. Yokoyama; H. Yamada; Y. Takeiri; T. Mutoh; S. Imagawa; T. Mito; Y. Nagayama; K. Y. Watanabe; N. Ashikawa; H. Chikaraishi; A. Ejiri; M. Furukawa; T. Fujita; S. Hamaguchi; H. Igami; M. Isobe; S. Masuzaki; T. Morisaki; G. Motojima; K. Nagasaki; H. Nakano; Y. Oya; C. Suzuki; Y. Suzuki; R. Sakamoto; M. Sakamoto; A. Sanpei; H. Takahashi; H. Tsuchiya; M. Tokitani; Y. Ueda; Y. Yoshimura; S. Yamamoto; K. Nishimura; H. Sugama; T. Yamamoto; H. Idei; A. Isayama; S. Kitajima; S. Masamune; K. Shinohara; P. S. Bawankar; E. Bernard; M. Von Berkel; H. Funaba; X. L. Huang; T. Ii; T. Ido; K. Ikeda; S. Kamio; R. Kumazawa; T. Kobayashi; C. Moon; S. Muto; J. Miyazawa; T. Ming; Y. Nakamura; S. Nishimura; K. Ogawa; T. Ozaki; T. Oishi; M. Ohno; S. Pandya; A. Shimizu; R. Seki; R. Sano; K. Saito; H. Sakaue; Y. Takemura; K. Tsumori; N. Tamura; H. Tanaka; K. Toi; B. Wieland; I. Yamada; R. Yasuhara; H. Zhang; O. Kaneko; A. Komori

doi:10.1088/0029-5515/55/10/104018

Overview of transport and MHD stability study: Focusing on the impact of magnetic field topology in the Large Helical Device

K. Ida, K. Nagaoka, Inagaki Shigeru, H. Kasahara, T. Evans, M. Yoshinuma, K. Kamiya, S. Ohdach, M. Osakabe, M. Kobayashi, S. Sudo, K. Itoh, T. Akiyama, M. Emoto, A. Dinklage, X. Du, K. Fujii, M. Goto, T. Goto, M. HasuoC. Hidalgo, K. Ichiguchi, A. Ishizawa, M. Jakubowski, G. Kawamura, D. Kato, S. Morita, K. Mukai, I. Murakami, S. Murakami, Y. Narushima, M. Nunami, N. Ohno, N. Pablant, S. Sakakibara, T. Seki, T. Shimozuma, M. Shoji, K. Tanaka, T. Tokuzawa, Y. Todo, H. Wang, M. Yokoyama, H. Yamada, Y. Takeiri, T. Mutoh, S. Imagawa, T. Mito, Y. Nagayama, K. Y. Watanabe, N. Ashikawa, H. Chikaraishi, A. Ejiri, M. Furukawa, T. Fujita, S. Hamaguchi, H. Igami, M. Isobe, S. Masuzaki, T. Morisaki, G. Motojima, K. Nagasaki, H. Nakano, Y. Oya, C. Suzuki, Y. Suzuki, R. Sakamoto, M. Sakamoto, A. Sanpei, H. Takahashi, H. Tsuchiya, M. Tokitani, Y. Ueda, Y. Yoshimura, S. Yamamoto, K. Nishimura, H. Sugama, T. Yamamoto, H. Idei, A. Isayama, S. Kitajima, S. Masamune, K. Shinohara, P. S. Bawankar, E. Bernard, M. Von Berkel, H. Funaba, X. L. Huang, T. Ii, T. Ido, K. Ikeda, S. Kamio, R. Kumazawa, T. Kobayashi, C. Moon, S. Muto, J. Miyazawa, T. Ming, Y. Nakamura, S. Nishimura, K. Ogawa, T. Ozaki, T. Oishi, M. Ohno, S. Pandya, A. Shimizu, R. Seki, R. Sano, K. Saito, H. Sakaue, Y. Takemura, K. Tsumori, N. Tamura, H. Tanaka, K. Toi, B. Wieland, I. Yamada, R. Yasuhara, H. Zhang, O. Kaneko, A. Komori

Division of Nuclear Fusion Dynamics

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13 Citations (Scopus)

Abstract

The progress in the understanding of the physics and the concurrent parameter extension in the large helical device since the last IAEA-FEC, in 2012 (Kaneko O et al 2013 Nucl. Fusion 53 095024), is reviewed. Plasma with high ion and electron temperatures (T_i(0)∼T_e(0)∼6keV) with simultaneous ion and electron internal transport barriers is obtained by controlling recycling and heating deposition. A sign flip of the nondiffusive term of impurity/momentum transport (residual stress and convection flow) is observed, which is associated with the formation of a transport barrier. The impact of the topology of three-dimensional magnetic fields (stochastic magnetic fields and magnetic islands) on heat momentum, particle/impurity transport and magnetohydrodynamic stability is also discussed. In the steady state operation, a 48min discharge with a line-averaged electron density of 1 10¹⁹m^-3 and with high electron and ion temperatures (T_i(0)∼T_e(0)∼2keV), resulting in 3.36GJ of input energy, is achieved.

Original language	English
Article number	104018
Journal	Nuclear Fusion
Volume	55
Issue number	10
DOIs	https://doi.org/10.1088/0029-5515/55/10/104018
Publication status	Published - Jul 30 2015

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

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10.1088/0029-5515/55/10/104018

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Ida, K., Nagaoka, K., Shigeru, I., Kasahara, H., Evans, T., Yoshinuma, M., Kamiya, K., Ohdach, S., Osakabe, M., Kobayashi, M., Sudo, S., Itoh, K., Akiyama, T., Emoto, M., Dinklage, A., Du, X., Fujii, K., Goto, M., Goto, T., ... Komori, A. (2015). Overview of transport and MHD stability study: Focusing on the impact of magnetic field topology in the Large Helical Device. Nuclear Fusion, 55(10), [104018]. https://doi.org/10.1088/0029-5515/55/10/104018

Ida, K, Nagaoka, K, Shigeru, I, Kasahara, H, Evans, T, Yoshinuma, M, Kamiya, K, Ohdach, S, Osakabe, M, Kobayashi, M, Sudo, S, Itoh, K, Akiyama, T, Emoto, M, Dinklage, A, Du, X, Fujii, K, Goto, M, Goto, T, Hasuo, M, Hidalgo, C, Ichiguchi, K, Ishizawa, A, Jakubowski, M, Kawamura, G, Kato, D, Morita, S, Mukai, K, Murakami, I, Murakami, S, Narushima, Y, Nunami, M, Ohno, N, Pablant, N, Sakakibara, S, Seki, T, Shimozuma, T, Shoji, M, Tanaka, K, Tokuzawa, T, Todo, Y, Wang, H, Yokoyama, M, Yamada, H, Takeiri, Y, Mutoh, T, Imagawa, S, Mito, T, Nagayama, Y, Watanabe, KY, Ashikawa, N, Chikaraishi, H, Ejiri, A, Furukawa, M, Fujita, T, Hamaguchi, S, Igami, H, Isobe, M, Masuzaki, S, Morisaki, T, Motojima, G, Nagasaki, K, Nakano, H, Oya, Y, Suzuki, C, Suzuki, Y, Sakamoto, R, Sakamoto, M, Sanpei, A, Takahashi, H, Tsuchiya, H, Tokitani, M, Ueda, Y, Yoshimura, Y, Yamamoto, S, Nishimura, K, Sugama, H, Yamamoto, T, Idei, H, Isayama, A, Kitajima, S, Masamune, S, Shinohara, K, Bawankar, PS, Bernard, E, Von Berkel, M, Funaba, H, Huang, XL, Ii, T, Ido, T, Ikeda, K, Kamio, S, Kumazawa, R, Kobayashi, T, Moon, C, Muto, S, Miyazawa, J, Ming, T, Nakamura, Y, Nishimura, S, Ogawa, K, Ozaki, T, Oishi, T, Ohno, M, Pandya, S, Shimizu, A, Seki, R, Sano, R, Saito, K, Sakaue, H, Takemura, Y, Tsumori, K, Tamura, N, Tanaka, H, Toi, K, Wieland, B, Yamada, I, Yasuhara, R, Zhang, H, Kaneko, O & Komori, A 2015, 'Overview of transport and MHD stability study: Focusing on the impact of magnetic field topology in the Large Helical Device', Nuclear Fusion, vol. 55, no. 10, 104018. https://doi.org/10.1088/0029-5515/55/10/104018

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title = "Overview of transport and MHD stability study: Focusing on the impact of magnetic field topology in the Large Helical Device",

abstract = "The progress in the understanding of the physics and the concurrent parameter extension in the large helical device since the last IAEA-FEC, in 2012 (Kaneko O et al 2013 Nucl. Fusion 53 095024), is reviewed. Plasma with high ion and electron temperatures (Ti(0)∼Te(0)∼6keV) with simultaneous ion and electron internal transport barriers is obtained by controlling recycling and heating deposition. A sign flip of the nondiffusive term of impurity/momentum transport (residual stress and convection flow) is observed, which is associated with the formation of a transport barrier. The impact of the topology of three-dimensional magnetic fields (stochastic magnetic fields and magnetic islands) on heat momentum, particle/impurity transport and magnetohydrodynamic stability is also discussed. In the steady state operation, a 48min discharge with a line-averaged electron density of 1 1019m-3 and with high electron and ion temperatures (Ti(0)∼Te(0)∼2keV), resulting in 3.36GJ of input energy, is achieved.",

author = "K. Ida and K. Nagaoka and Inagaki Shigeru and H. Kasahara and T. Evans and M. Yoshinuma and K. Kamiya and S. Ohdach and M. Osakabe and M. Kobayashi and S. Sudo and K. Itoh and T. Akiyama and M. Emoto and A. Dinklage and X. Du and K. Fujii and M. Goto and T. Goto and M. Hasuo and C. Hidalgo and K. Ichiguchi and A. Ishizawa and M. Jakubowski and G. Kawamura and D. Kato and S. Morita and K. Mukai and I. Murakami and S. Murakami and Y. Narushima and M. Nunami and N. Ohno and N. Pablant and S. Sakakibara and T. Seki and T. Shimozuma and M. Shoji and K. Tanaka and T. Tokuzawa and Y. Todo and H. Wang and M. Yokoyama and H. Yamada and Y. Takeiri and T. Mutoh and S. Imagawa and T. Mito and Y. Nagayama and Watanabe, {K. Y.} and N. Ashikawa and H. Chikaraishi and A. Ejiri and M. Furukawa and T. Fujita and S. Hamaguchi and H. Igami and M. Isobe and S. Masuzaki and T. Morisaki and G. Motojima and K. Nagasaki and H. Nakano and Y. Oya and C. Suzuki and Y. Suzuki and R. Sakamoto and M. Sakamoto and A. Sanpei and H. Takahashi and H. Tsuchiya and M. Tokitani and Y. Ueda and Y. Yoshimura and S. Yamamoto and K. Nishimura and H. Sugama and T. Yamamoto and H. Idei and A. Isayama and S. Kitajima and S. Masamune and K. Shinohara and Bawankar, {P. S.} and E. Bernard and {Von Berkel}, M. and H. Funaba and Huang, {X. L.} and T. Ii and T. Ido and K. Ikeda and S. Kamio and R. Kumazawa and T. Kobayashi and C. Moon and S. Muto and J. Miyazawa and T. Ming and Y. Nakamura and S. Nishimura and K. Ogawa and T. Ozaki and T. Oishi and M. Ohno and S. Pandya and A. Shimizu and R. Seki and R. Sano and K. Saito and H. Sakaue and Y. Takemura and K. Tsumori and N. Tamura and H. Tanaka and K. Toi and B. Wieland and I. Yamada and R. Yasuhara and H. Zhang and O. Kaneko and A. Komori",

note = "Publisher Copyright: {\textcopyright} 2015 IAEA, Vienna.",

year = "2015",

month = jul,

day = "30",

doi = "10.1088/0029-5515/55/10/104018",

language = "English",

volume = "55",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing Ltd.",

number = "10",

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TY - JOUR

T1 - Overview of transport and MHD stability study

T2 - Focusing on the impact of magnetic field topology in the Large Helical Device

AU - Ida, K.

AU - Nagaoka, K.

AU - Shigeru, Inagaki

AU - Kasahara, H.

AU - Evans, T.

AU - Yoshinuma, M.

AU - Kamiya, K.

AU - Ohdach, S.

AU - Osakabe, M.

AU - Kobayashi, M.

AU - Sudo, S.

AU - Itoh, K.

AU - Akiyama, T.

AU - Emoto, M.

AU - Dinklage, A.

AU - Du, X.

AU - Fujii, K.

AU - Goto, M.

AU - Goto, T.

AU - Hasuo, M.

AU - Hidalgo, C.

AU - Ichiguchi, K.

AU - Ishizawa, A.

AU - Jakubowski, M.

AU - Kawamura, G.

AU - Kato, D.

AU - Morita, S.

AU - Mukai, K.

AU - Murakami, I.

AU - Murakami, S.

AU - Narushima, Y.

AU - Nunami, M.

AU - Ohno, N.

AU - Pablant, N.

AU - Sakakibara, S.

AU - Seki, T.

AU - Shimozuma, T.

AU - Shoji, M.

AU - Tanaka, K.

AU - Tokuzawa, T.

AU - Todo, Y.

AU - Wang, H.

AU - Yokoyama, M.

AU - Yamada, H.

AU - Takeiri, Y.

AU - Mutoh, T.

AU - Imagawa, S.

AU - Mito, T.

AU - Nagayama, Y.

AU - Watanabe, K. Y.

AU - Ashikawa, N.

AU - Chikaraishi, H.

AU - Ejiri, A.

AU - Furukawa, M.

AU - Fujita, T.

AU - Hamaguchi, S.

AU - Igami, H.

AU - Isobe, M.

AU - Masuzaki, S.

AU - Morisaki, T.

AU - Motojima, G.

AU - Nagasaki, K.

AU - Nakano, H.

AU - Oya, Y.

AU - Suzuki, C.

AU - Suzuki, Y.

AU - Sakamoto, R.

AU - Sakamoto, M.

AU - Sanpei, A.

AU - Takahashi, H.

AU - Tsuchiya, H.

AU - Tokitani, M.

AU - Ueda, Y.

AU - Yoshimura, Y.

AU - Yamamoto, S.

AU - Nishimura, K.

AU - Sugama, H.

AU - Yamamoto, T.

AU - Idei, H.

AU - Isayama, A.

AU - Kitajima, S.

AU - Masamune, S.

AU - Shinohara, K.

AU - Bawankar, P. S.

AU - Bernard, E.

AU - Von Berkel, M.

AU - Funaba, H.

AU - Huang, X. L.

AU - Ii, T.

AU - Ido, T.

AU - Ikeda, K.

AU - Kamio, S.

AU - Kumazawa, R.

AU - Kobayashi, T.

AU - Moon, C.

AU - Muto, S.

AU - Miyazawa, J.

AU - Ming, T.

AU - Nakamura, Y.

AU - Nishimura, S.

AU - Ogawa, K.

AU - Ozaki, T.

AU - Oishi, T.

AU - Ohno, M.

AU - Pandya, S.

AU - Shimizu, A.

AU - Seki, R.

AU - Sano, R.

AU - Saito, K.

AU - Sakaue, H.

AU - Takemura, Y.

AU - Tsumori, K.

AU - Tamura, N.

AU - Tanaka, H.

AU - Toi, K.

AU - Wieland, B.

AU - Yamada, I.

AU - Yasuhara, R.

AU - Zhang, H.

AU - Kaneko, O.

AU - Komori, A.

PY - 2015/7/30

Y1 - 2015/7/30

N2 - The progress in the understanding of the physics and the concurrent parameter extension in the large helical device since the last IAEA-FEC, in 2012 (Kaneko O et al 2013 Nucl. Fusion 53 095024), is reviewed. Plasma with high ion and electron temperatures (Ti(0)∼Te(0)∼6keV) with simultaneous ion and electron internal transport barriers is obtained by controlling recycling and heating deposition. A sign flip of the nondiffusive term of impurity/momentum transport (residual stress and convection flow) is observed, which is associated with the formation of a transport barrier. The impact of the topology of three-dimensional magnetic fields (stochastic magnetic fields and magnetic islands) on heat momentum, particle/impurity transport and magnetohydrodynamic stability is also discussed. In the steady state operation, a 48min discharge with a line-averaged electron density of 1 1019m-3 and with high electron and ion temperatures (Ti(0)∼Te(0)∼2keV), resulting in 3.36GJ of input energy, is achieved.

AB - The progress in the understanding of the physics and the concurrent parameter extension in the large helical device since the last IAEA-FEC, in 2012 (Kaneko O et al 2013 Nucl. Fusion 53 095024), is reviewed. Plasma with high ion and electron temperatures (Ti(0)∼Te(0)∼6keV) with simultaneous ion and electron internal transport barriers is obtained by controlling recycling and heating deposition. A sign flip of the nondiffusive term of impurity/momentum transport (residual stress and convection flow) is observed, which is associated with the formation of a transport barrier. The impact of the topology of three-dimensional magnetic fields (stochastic magnetic fields and magnetic islands) on heat momentum, particle/impurity transport and magnetohydrodynamic stability is also discussed. In the steady state operation, a 48min discharge with a line-averaged electron density of 1 1019m-3 and with high electron and ion temperatures (Ti(0)∼Te(0)∼2keV), resulting in 3.36GJ of input energy, is achieved.

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UR - http://www.scopus.com/inward/citedby.url?scp=84947916989&partnerID=8YFLogxK

U2 - 10.1088/0029-5515/55/10/104018

DO - 10.1088/0029-5515/55/10/104018

M3 - Article

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SN - 0029-5515

VL - 55

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 10

M1 - 104018

ER -

Overview of transport and MHD stability study: Focusing on the impact of magnetic field topology in the Large Helical Device

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