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Hiroshi Idei

Professor

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1990 …2023

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  • 2015

    High βp plasma formation using off-axis ECCD in Ohmic heated plasma in the spherical tokamak QUEST

    QUEST Team, Mar 12 2015, In: EPJ Web of Conferences. 87, 02012.

    Research output: Contribution to journal › Conference article › peer-review

    1 Citation (Scopus)

  • Recent upgrading of ECRH system and studies to improve ECRH performance in the LHD

    Lhd Experiment Group, Mar 12 2015, In: EPJ Web of Conferences. 87, 02011.

    Research output: Contribution to journal › Conference article › peer-review

    7 Citations (Scopus)

  • Research and development of 2-frequency (110/138 GHz) FADIS for JT-60SA ECHCD system

    Idei, H., Moriyama, S., Kobayashi, T., Isayama, A., Sakaguchi, M. & Kasparek, W., Mar 12 2015, In: EPJ Web of Conferences. 87, 04009.

    Research output: Contribution to journal › Conference article › peer-review

  • 2014

    Investigation of non-inductive plasma current start-up by RF on QUEST

    Ishiguro, M., Hanada, K., Liu, H., Ogata, R., Isobe, M., Tashima, S., Zushi, H., Sato, K., Fujisawa, A., Nakamura, K., Idei, H., Sakamoto, M., Hasegawa, M., Takase, Y., Maekawa, T., Kishimoto, Y., Mitarai, O., Kawasaki, S., Nakashima, H. & Higashijima, A., 2014, In: Journal of Physics: Conference Series. 511, 1, 012041.

    Research output: Contribution to journal › Conference article › peer-review

    3 Citations (Scopus)
  • 2012

    In-situ characterization of spurious modes in HE11 transmission lines with a 5-port coupler

    Plaum, B., Kasparek, W., Lechte, C., Ruiz, J., Tretiak, D. & Idei, H., 2012, In: EPJ Web of Conferences. 32, 04010.

    Research output: Contribution to journal › Conference article › peer-review

    3 Citations (Scopus)

  • Progress of ECRH by EBW in over-dense plasmas and controlling the confinement regime by ECCD with high power launching in LHD

    Igami, H., Yoshimura, Y., Takahashi, H., Shimozuma, T., Kubo, S., Idei, H., Nishiura, M., Ogasawara, S., Makino, R., Ohdachi, S., Ida, K., Yoshinuma, M., Ido, T., Shimizu, A., Tamura, N., Shigeru, I. & Mutoh, T., 2012, In: EPJ Web of Conferences. 32, 02006.

    Research output: Contribution to journal › Conference article › peer-review

    2 Citations (Scopus)
  • 2006

    Continuous and real-time data acquisition system for superconducting tokamaks HT-7 and TRIAM-1M

    Wang, F., Luo, J. R., Nakamura, K., Sato, K. N., Hanada, K., Sakamoto, M., Idei, H., Kawasaki, S. & Nakashima, H., Feb 2006, In: Fusion Engineering and Design. 81, 8-14 PART B, p. 1621-1626 6 p.

    Research output: Contribution to journal › Conference article › peer-review

    1 Citation (Scopus)

  • Magnetic sensorless control experiment without drift problem on HT-7

    Nakamura, K., Luo, J. R., Wang, H. Z., Ji, Z. S., Wang, H., Wang, F., Qi, N., Sato, K. N., Hanada, K., Sakamoto, M., Idei, H., Hasegawa, M., Iyomasa, A., Kawasaki, S., Nakashima, H. & Higashijima, A., Feb 2006, In: Fusion Engineering and Design. 81, 8-14 PART B, p. 1607-1612 6 p.

    Research output: Contribution to journal › Conference article › peer-review

    1 Citation (Scopus)
  • 2003

    First measurement of hard x-ray spectrum emitted from high-energy electrons in electron cyclotron heated plasma of LHD

    Muto, S., Morita, S., Kubo, S., Shimozuma, T., Idei, H. & Yoshimura, Y., Mar 2003, In: Review of Scientific Instruments. 74, 3 II, p. 1993-1996 4 p.

    Research output: Contribution to journal › Conference article › peer-review

    10 Citations (Scopus)

  • Spatial resolved high-energy particle diagnostic system using time-of-flight neutral particle analyzer in Large Helical Device

    Ozaki, T., Murakami, S., Goncharov, P., Watanabe, T., Sudo, S., Narihara, K., Tanaka, K., Kubo, S., Simozuma, T., Idei, H., Oka, Y., Osakabe, M., Takeiri, Y., Tsumori, K., Ida, K., Shoji, M., Nakanishi, H., Sasao, M., Kaneko, O., Kawahata, K., & 3 othersNakamura, Y., Ohyabu, N. & Motojima, O., Mar 2003, In: Review of Scientific Instruments. 74, 3 II, p. 1878-1882 5 p.

    Research output: Contribution to journal › Conference article › peer-review

    6 Citations (Scopus)
  • 2001

    Effect of carbon divertor plates on impurities, Zeff and density limit in large helical device

    Morita, S., Goto, M., Funaba, H., Idei, H., Ikeda, K., Shigeru, I., Kaneko, O., Kawahata, K., Komori, A., Kubo, S., Kumazawa, R., Masuzaki, S., Miyazawa, J., Morisaki, T., Motojima, O., Muto, S., Mutoh, T., Nakamura, Y., Narihara, K., Nishimura, K., & 20 othersNoda, N., Ohdachi, S., Ohyabu, N., Oka, Y., Osakabe, M., Sagara, A., Sakakibara, S., Sakamoto, R., Seki, T., Shimozuma, T., Shoji, M., Suzuki, H., Takeiri, Y., Tanaka, K., Toi, K., Tokuzawa, T., Tsumori, K., Yamada, H., Watanabe, K. Y. & Watari, T., Sept 12 2001, In: Physica Scripta T. 91, p. 48-52 5 p.

    Research output: Contribution to journal › Conference article › peer-review

    22 Citations (Scopus)

  • Improved plasma performance on Large Helical Device

    Komori, A., Ohyabu, N., Yamada, H., Kaneko, O., Kawahata, K., Ashikawa, N., DeVaries, P., Emoto, M., Funaba, H., Goto, M., Ida, K., Idei, H., Ikeda, K., Inagaki, S., Inoue, N., Isobe, M., Kado, S., Khlopenkov, K., Kobuchi, T., Kubo, S., & 63 othersKumazawa, R., Liang, Y., Masuzaki, S., Matsumoto, Y., Minami, T., Miyazawa, J., Morisaki, T., Morita, S., Murakami, S., Muto, S., Mutoh, T., Nagayama, Y., Nakamura, Y., Nakanishi, H., Narihara, K., Narushima, Y., Nishimura, K., Noda, N., Notake, T., Ohdachi, S., Oka, Y., Okamoto, M., Osakabe, M., Ozaki, T., Pavlichenko, R. O., Peterson, B. J., Sagara, A., Saito, K., Sakakibara, S., Sakamoto, R., Sasao, H., Sasao, M., Sato, K., Sato, M., Seki, T., Shimozuma, T., Shoji, M., Suzuki, H., Takechi, M., Takeiri, Y., Tamura, N., Tanaka, K., Toi, K., Tokuzawa, T., Torii, Y., Tsumori, K., Yamada, I., Yamaguchi, S., Yamamoto, S., Yokoyama, M., Yoshimura, Y., Watanabe, K. Y., Watanabe, T., Watari, T., Hamada, Y., Itoh, K., Matsuoka, K., Ohkubo, K., Satow, T., Sudo, S., Yamazaki, K., Motojima, O. & Fujiwara, M., May 2001, In: Physics of Plasmas. 8, 5 II, p. 2002-2008 7 p.

    Research output: Contribution to journal › Conference article › peer-review

    2 Citations (Scopus)

  • Ion Cyclotron range of frequency heating experiments on the large helical device and high energy ion behavior

    Kumazawa, R., Mutoh, T., Seki, T., Watari, T., Saito, K., Torii, Y., Shimpo, F., Nomura, G., Yokota, M., Kato, A., Hartmann, D. A., Zhao, Y., Fukuyama, A., Okada, H., Ohkubo, K., Sato, M., Kubo, S., Shimozuma, T., Idei, H., Yoshimura, Y., & 69 othersNotake, T., Takita, Y., Kobayashi, S., Itoh, S., Mizuno, Y., Kaneko, O., Takeiri, Y., Oka, Y., Tsumori, K., Osakabe, M., Ikeda, K., Yamamoto, S., Kawamoto, T., Asano, E., Ohyabu, N., Kawahata, K., Komori, A., Yamada, H., Akaishi, K., Ashikawa, N., Emoto, M., Funaba, H., Goto, M., Ida, K., Shigeru, I., Inoue, N., Isobe, M., Krasilnikov, A., Masuzaki, S., Minami, T., Miyazawa, J., Morisaki, T., Morita, S., Murakami, S., Muto, S., Nakamura, Y., Nagayama, Y., Nakanishi, H., Narihara, K., Narushima, Y., Nishimura, K., Noda, N., Kobuchi, T., Ohdachi, S., Ozaki, T., Peterson, B. J., Sagara, A., Sakakibara, S., Sakamoto, R., Sasao, H., Sasao, M., Sato, K., Shoji, M., Suzuki, H., Tanaka, K., Toi, K., Tokuzawa, T., Yamada, I., Yamaguchi, S., Yokoyama, M., Watanabe, K. Y., Watanabe, T., Matsuoka, K., Itoh, K., Sudo, S., Yamazaki, K., Hamada, Y., Motojima, O. & Fujiwara, M., May 2001, In: Physics of Plasmas. 8, 5 II, p. 2139-2147 9 p.

    Research output: Contribution to journal › Conference article › peer-review

    34 Citations (Scopus)
  • 2000

    Experimental studies on NBI and ICRF heated plasmas in the large helical device

    Kawahata, K., Ohyabu, N., Kaneko, O., Komori, A., Yamada, H., Ashikawa, N., De Vries, P., Emoto, M., Funaba, H., Goto, M., Ida, K., Idei, H., Ikeda, K., Shigeru, I., Inoue, N., Isobe, M., Kado, S., Khlopenkov, K., Kubo, S., Kumazawa, R., & 62 othersMasuzaki, S., Minami, T., Miyazawa, J., Morisaki, T., Morita, S., Murakami, S., Muto, S., Mutoh, T., Nagayama, Y., Nakamura, Y., Nakanishi, H., Narihara, K., Nishimura, K., Noda, N., Notake, T., Kobuchi, T., Liang, Y., Ohdachi, S., Oka, Y., Osakabe, M., Ozaki, T., Pavlichenko, R. O., Peterson, B. J., Sagara, A., Saito, K., Sakakibara, S., Sakamoto, R., Sasao, H., Sasao, M., Sato, K., Sato, M., Seki, T., Shimozuma, T., Shoji, M., Suzuki, H., Takechi, M., Takeiri, Y., Tamura, N., Tanaka, K., Toi, K., Tokuzawa, T., Torii, Y., Tsumori, K., Yamada, I., Yamaguchi, S., Yamamoto, S., Yokoyama, M., Yoshimura, Y., Watanabe, K. Y., Watari, T., Itoh, K., Matsuoka, K., Ohkubo, K., Ohtake, I., Satoh, S., Satow, T., Sudo, S., Tanahashi, S., Yamazaki, K., Hamada, Y., Motojima, O. & Fujiwara, M., Dec 2000, In: Plasma Physics and Controlled Fusion. 42, 12 SUPPL. B, p. B51-B60

    Research output: Contribution to journal › Conference article › peer-review

    2 Citations (Scopus)

  • Overview of the Large Helical Device

    Komori, A., Yamada, H., Kaneko, O., Ohyabu, N., Kawahata, K., Sakamoto, R., Sakakibara, S., Ashikawa, N., DeVries, P. C., Emoto, M., Funaba, H., Goto, M., Ida, K., Idei, H., Ikeda, K., Shigeru, I., Inoue, N., Isobe, M., Kado, S., Kubo, S., & 59 othersKumazawa, R., Masuzaki, S., Minami, T., Miyazawa, J., Morisaki, T., Morita, S., Murakami, S., Muto, S., Mutoh, T., Nagayama, Y., Nakamura, Y., Nakanishi, H., Narihara, K., Nishimura, K., Noda, N., Kobuchi, T., Ohdachi, S., Oka, Y., Osakabe, M., Ozaki, T., Peterson, B. J., Saito, K., Sagara, A., Sasao, H., Sasao, M., Sato, K., Sato, M., Seki, T., Shimozuma, T., Shoji, M., Suzuki, H., Takechi, M., Takeiri, Y., Tanaka, K., Toi, K., Tokuzawa, T., Tsumori, K., Yamada, I., Yamaguchi, S., Yamamoto, S., Yokoyama, M., Yoshimura, Y., Watanabe, K. Y., Watanabe, T., Watari, T., Hamada, Y., Itoh, K., Matsuoka, K., Murai, K., Ohkubo, K., Ohtake, I., Okamoto, M., Satoh, S., Satow, T., Sudo, S., Tanahashi, S., Yamazaki, K., Motojima, O. & Fujiwara, M., Nov 1 2000, In: Plasma Physics and Controlled Fusion. 42, 11, p. 1165-1177 13 p.

    Research output: Contribution to journal › Conference article › peer-review

    19 Citations (Scopus)

  • Thermal transport barrier in heliotron-type devices (Large Helical Device and Compact Helical System)

    Ohyabu, N., Fujisawa, A., Ashikawa, N., DeVries, P., Emoto, M., Funaba, H., Goto, M., Hamada, Y., Iguchi, H., Ida, K., Itoh, K., Isobe, M., Idei, H., Shigeru, I., Inoue, N., Ikeda, K., Kado, S., Kubo, S., Kumazawa, R., Khlopenkov, K., & 68 othersKaneko, O., Kawahata, K., Komori, A., Kobuchi, T., Lee, S., Liang, Y., Minami, T., Miyazawa, J., Masuzaki, S., Matsuoka, K., Morisaki, T., Morita, S., Murakami, S., Mutoh, T., Muto, S., Narihara, K., Nagayama, Y., Nakamura, Y., Nakanishi, H., Nishimura, K., Nishimura, S., Noda, N., Nomura, I., Notake, T., Okamura, S., Ohdachi, S., Ohkubo, K., Oka, Y., Osakabe, M., Ozaki, T., Peterson, B. J., Pavlichenko, R. O., Sagara, A., Sakakibara, S., Sakamoto, R., Sasao, M., Sato, K., Sanuki, H., Saito, K., Sato, M., Seki, T., Shimizu, A., Shimozuma, T., Shoji, M., Suzuki, H., Sudo, S., Sasao, H., Takeiri, Y., Tanaka, K., Toi, K., Tokuzawa, T., Tsumori, K., Tsuzuki, K., Takechi, M., Tamura, N., Torii, Y., Yamada, I., Yamada, H., Yamaguchi, S., Yamazaki, K., Yokoyama, M., Yoshimura, Y., Yamamoto, S., Watanabe, K. Y., Watanabe, T., Watari, T., Motojima, O. & Fujiwara, M., May 2000, In: Physics of Plasmas. 7, 5 II, p. 1802-1808 7 p.

    Research output: Contribution to journal › Conference article › peer-review

    2 Citations (Scopus)
  • 1997

    Experimental study of edge plasma structure in various discharges on compact helical system

    Morisaki, T., Komori, A., Akiyama, R., Idei, H., Iguchi, H., Inoue, N., Kawai, Y., Kubo, S., Masuzaki, S., Matsuoka, K., Minami, T., Morita, S., Noda, N., Ohyabu, N. & Okamura, S., Feb 2 1997, In: Journal of Nuclear Materials. 241-243, p. 977-981 5 p.

    Research output: Contribution to journal › Conference article › peer-review

    3 Citations (Scopus)

  • Real time boronization experiments in CHS and scaling for LHD

    Sagara, A., Hasegawa, Y., Tsuzuki, K., Inoue, N., Suzuki, H., Morisaki, T., Noda, N., Motojima, O., Okamura, S., Matsuoka, K., Akiyama, R., Ida, K., Idei, H., Iwasaki, K. & Kubo, S., Feb 2 1997, In: Journal of Nuclear Materials. 241-243, p. 972-976 5 p.

    Research output: Contribution to journal › Conference article › peer-review

    18 Citations (Scopus)