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  • Hiroshi Idei
2016

Kinetic full wave analysis of electron cyclotron wave mode conversion in tokamak plasmas

Khan, S. A., Fukuyama, A., Igami, H. & Idei, H., Jan 1 2016, In : Plasma and Fusion Research. 11, Specialissue1, 2403070.

Research output: Contribution to journalArticle

2 Citations (Scopus)
2014

Role of energetic electrons during current ramp-up and production of high poloidal beta plasma in non-inductive current drive on QUEST

Tashima, S., Zushi, H., Isobe, M., Hanada, K., Idei, H., Nakamura, K., Fujisawa, A., Matsuoka, K., Hasegawa, M., Nagashima, Y., Okamura, S., Banerjee, S., Kawasaki, S., Nakashima, H. & Higashijima, A., Feb 1 2014, In : Nuclear Fusion. 54, 2, 023010.

Research output: Contribution to journalArticle

18 Citations (Scopus)
2016

Observation of an edge coherent mode and poloidal flow in the electron cyclotron wave induced high βp plasma in QUEST

Banerjee, S., Zushi, H., Nishino, N., Mishra, K., Mahira, Y., Tashima, S., Ejiri, A., Yamaguchi, T., Onchi, T., Nagashima, Y., Hanada, K., Nakamura, K., Idei, H., Hasegawa, M., Fujisawa, A., Kuzmin, A. & Matsuoka, K., Aug 1 2016, In : Physics of Plasmas. 23, 8, 082507.

Research output: Contribution to journalArticle

2015

Conceptual Design of Dual Baseline-Frequency Fast Directional Switch using Square Corrugated Waveguide Splitter/Combiner

Idei, H., Kobayashi, T., Moriyama, S., Isayama, A., Sakaguchi, M. & Kasparek, W., Jul 5 2015, In : Journal of Infrared, Millimeter, and Terahertz Waves. 36, 7, p. 662-674 13 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)
2019

Particle balance investigation with the combination of the hydrogen barrier model and rate equations of hydrogen state in long duration discharges on an all-metal plasma facing wall in QUEST

Hanada, K., Yoshida, N., Hasegawa, M., Hatayama, A., Okamoto, K., Takagi, I., Hirata, T., Oya, Y., Miyamoto, M., Oya, M., Shikama, T., Kuzmin, A., Wang, Z. X., Long, H., Idei, H., Nagashima, Y., Nakamura, K., Watanabe, O., Onchi, T., Watanabe, H. & 12 others, Tokunaga, K., Higashijima, A., Kawasaki, S., Nagata, T., Shimabukuro, S., Takase, Y., Murakami, S., Gao, X., Liu, H., Qian, J., Raman, R. & Ono, M., May 23 2019, In : Nuclear Fusion. 59, 7, 076007.

Research output: Contribution to journalArticle

2 Citations (Scopus)
2015

Development of a high-performance control system by decentralization with reflective memory on QUEST

Hasegawa, M., Nakamura, K., Zushi, H., Hanada, K., Fujisawa, A., Mitarai, O., Tokunaga, K., Idei, H., Nagashima, Y., Kawasaki, S., Nakashima, H. & Higashijima, A., Oct 1 2015, In : Fusion Engineering and Design. 96-97, p. 629-632 4 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
2017

Plasma equilibrium based on RF-driven current profile without assuming nested magnetic surfaces on QUEST

Nakamura, K., Alam, M. M., Jiang, Y. Z., Mitarai, O., Kurihara, K., Kawamata, Y., Sueoka, M., Takechi, M., Hasegawa, M., Tokunaga, K., Araki, K., Zushi, H., Hanada, K., Fujisawa, A., Idei, H., Nagashima, Y., Kawasaki, S., Nakashima, H., Higashijima, A., Nagata, T. & 1 others, Fukuyama, A., Nov 2017, In : Fusion Engineering and Design. 123, p. 532-534 3 p.

Research output: Contribution to journalArticle

2015

Development of gyrotrons for fusion with power exceeding 1 MW over a wide frequency range

Kariya, T., Imai, T., Minami, R., Numakura, T., Eguchi, T., Kato, T., Endo, Y., Ichimura, M., Shimozuma, T., Kubo, S., Takahashi, H., Yoshimura, Y., Igami, H., Ito, S., Mutoh, T., Sakamoto, K., Idei, H., Zushi, H., Nagasaki, K., Sano, F. & 2 others, Ono, M. & Mitsunaka, Y., Aug 5 2015, In : Nuclear Fusion. 55, 9, 093009.

Research output: Contribution to journalArticle

12 Citations (Scopus)
2011

First ohmic discharge assisted with RF power in QUEST spherical tokamak

Mitarai, O., Nakamura, K., Tashima, S., Hasegawa, M., Idei, H., Sakamoto, M., Hanada, K., Zushi, H., Sato, K., Ishiguro, M., Liu, H. Q., Higashizono, Y., Higashijima, A., Nakashima, H., Kawasaki, S., Takase, Y., Maekawa, T. & Nishino, N., Dec 1 2011, In : Plasma and Fusion Research. 6, 2011, 1402003.

Research output: Contribution to journalArticle

2 Citations (Scopus)
2014

Electron Bernstein wave heating and emission measurement through the very narrow O-X-B mode conversion window in the LHD

Igami, H., Kubo, S., Shimozuma, T., Yoshimura, Y., Takahashi, H., Nishiura, M., Ogasawara, S., Makino, R., Idei, H., Nagasaki, K., Seki, T., Osakabe, M. & Mutoh, T., Jan 1 2014, Radiofrequency Power in Plasmas - Proceedings of the 20th Topical Conference. American Institute of Physics Inc., Vol. 1580. p. 490-493 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)
2020

Measurement of dynamic retention with fast ejecting system of targeted sample (FESTA)

Yue, Q., Hanada, K., Oya, M., Matsuo, S., Kojima, S., Idei, H., Onchi, T., Kuroda, K., Yoshida, N., Ikezoe, R., Liu, Y., Hasegawa, M., Shimabukuro, S., Higashijima, A., Nagata, T. & Kawasaki, S., Jan 1 2020, In : Plasma and Fusion Research. 15, p. 1-5 5 p.

Research output: Contribution to journalArticle

Open Access
2011

Measurement of the electron bernstein wave emission with one of the power transmission lines for ech in LHD

Igami, H., Idei, H., Kubo, S., Yoshimura, Y., Shimozuma, T. & Takahashi, H., Aug 1 2011, In : Plasma Science and Technology. 13, 4, p. 405-409 5 p.

Research output: Contribution to journalArticle

2015

Self organization of high βp plasma equilibrium with an inboard poloidal magnetic field null in QUEST

Mishra, K., Zushi, H., Idei, H., Hasegawa, M., Onchi, T., Tashima, S., Banerjee, S., Hanada, H., Togashi, H., Yamaguchi, T., Ejiri, A., Takase, Y., Nakamura, K., Fujisawa, A., Nagashima, Y. & Kuzmin, A., Aug 1 2015, In : Nuclear Fusion. 55, 8, 083009.

Research output: Contribution to journalArticle

7 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., Dec 1 2012, In : EPJ Web of Conferences. 32, 04010.

Research output: Contribution to journalConference article

2 Citations (Scopus)
2019

High voltage electrical system of 8.56 GHz CW klystron for electron cyclotron heating on QUEST spherical tokamak

Onchi, T., Idei, H., Nakamura, K., Nagata, T., Kawasaki, S., Ashida, R., Fukuyama, M., Hasegawa, M., Ikezoe, R., Higashijima, A., Kuroda, K., Nagashima, Y. & Hanada, K., Sep 1 2019, In : Fusion Engineering and Design. 146, p. 2567-2570 4 p.

Research output: Contribution to journalArticle

2015

Particle balance in long duration RF driven plasmas on QUEST

Hanada, K., Zushi, H., Yoshida, N., Yugami, N., Honda, T., Hasegawa, M., Mishra, K., Kuzmin, A., Nakamura, K., Fujisawa, A., Idei, H., Nagashima, Y., Watanabe, O., Onchi, T., Watanabe, H., Tokunaga, K., Higashijima, A., Kawasaki, S., Nakashima, H., Takase, Y. & 3 others, Fukuyama, A., Mitarai, O. & Peng, Y. K. M., Jul 22 2015, In : Journal of Nuclear Materials. 463, p. 1084-1086 3 p., 48871.

Research output: Contribution to journalArticle

10 Citations (Scopus)
2019

Estimation of fuel particle balance in steady state operation with hydrogen barrier model

Hanada, K., Yoshida, N., Takagi, I., Hirata, T., Hatayama, A., Okamoto, K., Oya, Y., Shikama, T., Wang, Z., Long, H., Huang, C., Oya, M., Idei, H., Nagashima, Y., Onchi, T., Hasegawa, M., Nakamura, K., Zushi, H., Kuroda, K., Kawasaki, S. & 10 others, Higashijima, A., Nagata, T., Shimabukuro, S., Takase, Y., Murakami, S., Gao, X., Liu, H., Qian, J., Raman, R. & Ono, M., May 2019, In : Nuclear Materials and Energy. 19, p. 544-549 6 p.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)
2011

Hydrogen permeation measurements in the spherical tokamak quest and its numerical modeling

Sharma, S. K., Zushi, H., Takagi, I., Hisano, Y., Shikama, T., Morita, S., Tanabe, T., Yoshida, N., Sakamoto, M., Higashizono, Y., Hanada, K., Hasegawa, M., Mitarai, O., Nakamura, K., Idei, H., Sato, K. N., Kawasaki, S., Nakashima, H., Higashijima, A., Nakashima, Y. & 8 others, Nishino, N., Hatano, Y., Sagara, A., Nakamura, Y., Ashikawa, N., Maekawa, T., Kishimoto, Y. & Takase, Y., Nov 2011, In : Fusion Science and Technology. 60, 4, p. 1511-1514 4 p.

Research output: Contribution to journalArticle

2019

Development of high power gyrotrons for advanced fusion devices

Kariya, T., Minami, R., Imai, T., Okada, M., Motoyoshi, F., Numakura, T., Nakashima, Y., Idei, H., Onchi, T., Hanada, K., Shimozuma, T., Yoshimura, Y., Takahashi, H., Kubo, S., Oda, Y., Ikeda, R., Sakamoto, K., Ono, M., Nagasaki, K., Eguchi, T. & 1 others, Mitsunaka, Y., Apr 26 2019, In : Nuclear Fusion. 59, 6, 066009.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Plasma equilibrium based on EC-driven current profile with toroidal rotation on QUEST

Nakamura, K., Alam, M. M., Jiang, Y. Z., Mitarai, O., Takechi, M., Hasegawa, M., Tokunaga, K., Hanada, K., Idei, H., Nagashima, Y., Onchi, T., Kuroda, K., Watanabe, O., Higashijima, A., Nagata, T., Shimabukuro, S., Kawasaki, S. & Fukuyama, A., Sep 2019, In : Fusion Engineering and Design. 146, p. 2628-2631 4 p.

Research output: Contribution to journalArticle

2011

Development of CW 16-element phased-array antenna for electron bernstein wave heating and current drive experiments in QUEST

Idei, H., Sakaguchi, M., Nagata, K., Kalinnikova, E., Fukuyama, A., Zushi, H., Hanada, K., Nakamura, K., Sakamoto, M., Hasegawa, M., Takase, Y., Maekawa, T., Mitarai, O., Kawasaki, S., Nakashima, H. & Higashijima, A., Dec 1 2011, IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves. 6105070. (IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2016

Current density calculation from particle orbit in RF-driven divertor plasma on QUEST

Alam, M. M., Nakamura, K., Hasegawa, M., Tokunaga, K., Araki, K., Zushi, H., Hanada, K., Fujisawa, A., Idei, H., Nagashima, Y., Kawasaki, S., Nakashima, H., Higashijima, A., Xia, F. & Mitarai, O., May 31 2016, 2015 IEEE 26th Symposium on Fusion Engineering, SOFE 2015. Institute of Electrical and Electronics Engineers Inc., 7482308. (Proceedings - Symposium on Fusion Engineering; vol. 2016-May).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2019

Prototype phased-array patch loop antennae for electron cyclotron emission diagnostics

Fukuyama, M., Idei, H., Yunoki, M., Ashida, R., Ogata, D., Ikezoe, R. & Onchi, T., Jan 1 2019, In : Plasma and Fusion Research. 14, 3402111.

Research output: Contribution to journalArticle

Open Access
2016

Response of the far scrape-off layer plasma to strong gas puffing in the high poloidal beta configuration of the QUEST spherical tokamak

Onchi, T., Zushi, H., Mishra, K., Oyama, Y., Nagashima, Y., Hanada, K., Idei, H., Hasegawa, M., Kuzmin, A., Miura, H., Nakamura, K., Fujisawa, A. & Nagaoka, K., Sep 15 2016, In : Plasma Physics and Controlled Fusion. 58, 11, 115004.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Analysis of plasma equilibrium based on orbit-driven current density profile in steady-state plasma on QUEST

Nakamura, K., Alam, M. M., Jiang, Y. Z., Mitarai, O., Kurihara, K., Kawamata, Y., Sueoka, M., Takechi, M., Hasegawa, M., Tokunaga, K., Araki, K., Zushi, H., Hanada, K., Fujisawa, A., Idei, H., Nagashima, Y., Kawasaki, S., Nakashima, H., Higashijima, A., Nagata, T. & 1 others, Fukuyama, A., Jan 1 2016, In : Fusion Engineering and Design. 109-111, p. 1528-1533 6 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2011

Study of matrix converter as a current-controlled power supply in QUEST tokamak

Liu, X., Nakamura, K., Jiang, Y., Yoshisue, T., Mitarai, O., Hasegawa, M., Tokunaga, K., Zushi, H., Hanada, K., Fujisawa, A., Idei, H., Kawasaki, S., Nakashima, H., Higashijima, A. & Araki, K., Dec 1 2011, In : Plasma and Fusion Research. 6, 1 SPECIAL ISSUE, 2405137.

Research output: Contribution to journalArticle

3 Citations (Scopus)
2017

Effect of magnetic structure on RF-induced breakdown in QUEST

Yoneda, R., Hanada, K., Nakamura, K., Idei, H., Yoshida, N., Hasegawa, M., Onchi, T., Kuroda, K., Kawasaki, S., Higashijima, A., Nagata, T., Isayama, A., Mitarai, O., Fukuyama, A. & Takase, Y., Jun 1 2017, In : Physics of Plasmas. 24, 6, 062513.

Research output: Contribution to journalArticle

4 Citations (Scopus)
2014

Adaptive array technique for differential-phase reflectometry in QUEST

Idei, H., Nagata, K., Mishra, K., Yamamoto, M. K., Itado, T., Akimoto, R., Hanada, K. & Zushi, H., Nov 1 2014, In : Review of Scientific Instruments. 85, 11, 11D842.

Research output: Contribution to journalArticle

4 Citations (Scopus)
2011

The impact of ICRF heating using newly installed phasing antenna in LHD

Kasahara, H., Saito, K., Seki, T., Nomura, R. G., Shimozuma, F. S. T., Igami, H., Wakatsuki, T., Watada, H., Idei, H., Masuzaki, S. & Mutoh, T., Jan 1 2011, 38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts. European Physical Society (EPS), p. 897-900 4 p. (38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts; vol. 35).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2017

Fully non-inductive second harmonic electron cyclotron plasma ramp-up in the QUEST spherical tokamak

Idei, H., Kariya, T., Imai, T., Mishra, K., Onchi, T., Watanabe, O., Zushi, H., Hanada, K., Qian, J., Ejiri, A., Alam, M. M., Nakamura, K., Fujisawa, A., Nagashima, Y., Hasegawa, M., Matsuoka, K., Fukuyama, A., Kubo, S., Shimozuma, T., Yoshikawa, M. & 8 others, Sakamoto, M., Kawasaki, S., Nakashima, H., Higashijima, A., Ide, S., Maekawa, T., Takase, Y. & Toi, K., Oct 5 2017, In : Nuclear Fusion. 57, 12, 126045.

Research output: Contribution to journalArticle

13 Citations (Scopus)
2014

Corrugated waveguide mode content analysis using irradiance moments

Jawla, S. K., Shapiro, M. A., Idei, H. & Temkin, R. J., Oct 1 2014, In : IEEE Transactions on Plasma Science. 42, 10, p. 3358-3364 7 p., 6891353.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2015

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

Ida, K., Nagaoka, K., Inagaki, S., 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. & 101 others, 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, K. Y., 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, P. S., Bernard, E., Von Berkel, M., Funaba, H., Huang, X. L., 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., Jul 30 2015, In : Nuclear Fusion. 55, 10, 104018.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Comparison between non-inductive plasma current start-up using ECRH with and without fundamental resonance on QUEST

Miura, H., Hanada, K., Zushi, H., Nakamura, K., Fujisawa, A., Idei, H., Nagashima, Y., Hasegawa, M., Nakashima, H., Kawasaki, S., Higashijima, A., Mitarai, O., Fukuyama, A. & Takase, Y., 2015, In : Plasma and Fusion Research. 10, 3402066.

Research output: Contribution to journalArticle

5 Citations (Scopus)
2020

Electron heating of over-dense plasma with dual-frequency electron cyclotron waves in fully non-inductive plasma ramp-up on the QUEST spherical tokamak

Idei, H., Onchi, T., Mishra, K., Zushi, H., Kariya, T., Imai, T., Watanabe, O., Ikezoe, R., Hanada, K., Ono, M., Ejiri, A., Qian, J., Nakamura, K., Fujisawa, A., Nagashima, Y., Hasegawa, M., Matsuoka, K., Fukuyama, A., Kubo, S., Yoshikawa, M. & 6 others, Sakamoto, M., Kawasaki, S., Higashijima, A., Ide, S., Takase, Y. & Murakami, S., 2020, In : Nuclear Fusion. 60, 1, 016030.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2018

Spectroscopic measurements of impurity ion toroidal and poloidal flow velocities and their dependence on vertical magnetic field in QUEST toroidal ECR plasmas

Yoneda, N., Shikama, T., Zushi, H., Hanada, K., Fujikawa, A., Onchi, T., Kuroda, K., Nii, K., Hasuo, M., Hasegawa, M., Idei, H., Nakamura, K., Nagashima, Y., Higashijima, A. & Nagata, T., Jan 1 2018, In : Plasma and Fusion Research. 13, 3402087.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)
2017

Erratum: Current Start-Up Using the New CHI System [Plasma Fusion Res., 12, (2017) (1202020)] DOI: 10.1585/pfr.12.1202020

Kuroda, K., Raman, R., Hanada, K., Hasegawa, M., Onchi, T., Ono, M., Jarboe, T. R., Nelson, B. A., Nagata, M., Mitarai, O., Nakamura, K., Idei, H., Rogers, J., Kawasaki, S., Nagata, T., Kuzmin, A., Kojima, S., Watanabe, O., Higashijima, A., Takase, Y. & 1 others, Fukuyama, A., Jan 1 2017, In : Plasma and Fusion Research. 12, 1902026.

Research output: Contribution to journalComment/debate

Open Access
2013

Turbulence velocimetry of tangential fast imaging data on QUEST

Banerjee, S., Zushi, H., Nishino, N., Nagashima, Y., Hanada, K., Tashima, S., Inoue, T., Nakamura, K., Idei, H., Hasegawa, M., Fujisawa, A. & Matsuoka, K., Jan 1 2013, In : Plasma and Fusion Research. 8, 2402098.

Research output: Contribution to journalArticle

2016

Comparison of current density profiles based on particle orbit-driven current in steady-state plasma on QUEST

Alam, M. M., Nakamura, K., Xia, F., Mitarai, O., Hasegawa, M., Tokunaga, K., Araki, K., Zushi, H., Hanada, K., Fujisawa, A., Idei, H., Nagashima, Y., Kawasaki, S., Nakashima, H., Higashijima, A. & Nagata, T., Jan 1 2016, In : Fusion Engineering and Design. 109-111, p. 1624-1630 7 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Comparison between Full Wave and ray-tracing calculations to examine scenarios for electron bernstein wave heating in LHD

Igami, H., Fukuyama, A., Idei, H., Nagasaki, K., Goto, Y., Kubo, S., Shimozuma, T., Yoshimura, Y., Takahashi, H., Tsujimura, T. I. & Makino, R., 2016, In : Plasma and Fusion Research. 11, 1, 2403098.

Research output: Contribution to journalArticle

2 Citations (Scopus)
2012

Experimental results for electron Bernstein wave heating in the large helical device

Igami, H., Kubo, S., Shimozuma, T., Yoshimura, Y., Takahashi, H., Idei, H., Nishiura, M., Ogasawara, S., Makino, R., Kumazawa, R., Mutoh, T., Sagara, A. & Goto, T., 2012, In : Plasma and Fusion Research. 7, SPL.ISS.1, 2402110.

Research output: Contribution to journalArticle

4 Citations (Scopus)
2013

Development of multi-purpose MW gyrotrons for fusion devices

Minami, R., Kariya, T., Imai, T., Numakura, T., Endo, Y., Nakabayashi, H., Eguchi, T., Shimozuma, T., Kubo, S., Yoshimura, Y., Igami, H., Takahashi, H., Mutoh, T., Ito, S., Idei, H., Zushi, H., Yamaguchi, Y., Sakamoto, K. & Mitsunaka, Y., Jun 1 2013, In : Nuclear Fusion. 53, 6, 063003.

Research output: Contribution to journalArticle

10 Citations (Scopus)
2011

Statistical interpretation of the density fluctuations from the high-speed visible images of edge turbulence on QUEST

Banerjee, S., Zushi, H., Nishino, N., Hanada, K., Liu, H. Q., Ishiguro, M., Ryoukai, T., Tashima, S., Nakamura, K., Idei, H., Hasegawa, M. & Fujisawa, A., Nov 1 2011, In : IEEE Transactions on Plasma Science. 39, 11 PART 1, p. 3006-3007 2 p., 6008663.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2017

Investigation of hydrogen recycling in long-duration discharges and its modification with a hot wall in the spherical tokamak QUEST

Hanada, K., Yoshida, N., Honda, T., Wang, Z., Kuzmin, A., Takagi, I., Hirata, T., Oya, Y., Miyamoto, M., Zushi, H., Hasegawa, M., Nakamura, K., Fujisawa, A., Idei, H., Nagashima, Y., Watanabe, O., Onchi, T., Kuroda, K., Long, H., Watanabe, H. & 7 others, Tokunaga, K., Higashijima, A., Kawasaki, S., Nagata, T., Takase, Y., Fukuyama, A. & Mitarai, O., Oct 26 2017, In : Nuclear Fusion. 57, 12, 126061.

Research output: Contribution to journalArticle

14 Citations (Scopus)
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., Jan 1 2014, In : Journal of Physics: Conference Series. 511, 1, 012041.

Research output: Contribution to journalConference article

2 Citations (Scopus)

Shape reconstruction of RF-driven divertor plasma on QUEST

Nakamura, K., Fujita, H., Liu, X. L., Xue, E. B., Xia, F., Mitarai, O., Kurihara, K., Kawamata, Y., Sueoka, M., Hasegawa, M., Tokunaga, K., Zushi, H., Hanada, K., Fujisawa, A., Matsuoka, K., Idei, H., Nagashima, Y., Kawasaki, S., Nakashima, H., Higashijima, A. & 2 others, Araki, K. & Fukuyama, A., Sep 1 2014, In : IEEE Transactions on Plasma Science. 42, 9, p. 2309-2312 4 p., 6871382.

Research output: Contribution to journalArticle

5 Citations (Scopus)
2013

Electron Bernstein wave heating by electron cyclotron wave injection from the high-field side in LHD

Yoshimura, Y., Igami, H., Kubo, S., Shimozuma, T., Takahashi, H., Nishiura, M., Ohdachi, S., Tanaka, K., Ida, K., Yoshinuma, M., Suzuki, C., Ogasawara, S., Makino, R., Idei, H., Kumazawa, R., Mutoh, T. & Yamada, H., Jun 1 2013, In : Nuclear Fusion. 53, 6, 063004.

Research output: Contribution to journalArticle

8 Citations (Scopus)
2017

Optimized design of polarizers with low ohmic loss and any polarization state for the 28 GHz QUEST ECH/ECCD system

Tsujimura, T. I., Idei, H., Kubo, S. & Kobayashi, S., Jan 1 2017, In : Fusion Engineering and Design. 114, p. 97-101 5 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)
2012

Numerical and experimental investigation of a 5-port mitre-bend directional coupler for mode analysis in corrugated waveguides

Ruiz, J., Kasparek, W., Lechte, C., Plaum, B. & Idei, H., May 1 2012, In : Journal of Infrared, Millimeter, and Terahertz Waves. 33, 5, p. 491-504 14 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)
2016

Power Balance Estimation in Long Duration Discharges on QUEST

Hanada, K., Zushi, H., Idei, H., Nakamura, K., Ishiguro, M., Tashima, S., Kalinnikova, E. I., Nagashima, Y., Hasegawa, M., Fujisawa, A., Higashijima, A., Kawasaki, S., Nakashima, H., Mitarai, O., Fukuyama, A., Takase, Y., Gao, X., Liu, H., Qian, J., Ono, M. & 1 others, Raman, R., Nov 2016, In : Plasma Science and Technology. 18, 11, p. 1069-1075 7 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)
2011

Electron Cyclotron / Bernstein wave heating and current drive experiments using phased-array antenna in QUEST

Idei, H., Zushi, H., Hanada, K., Nakamura, K., Fujisawa, A., Hasegawa, M., Yoshida, N., Sakamoto, M., Watanebe, H., Tokunaga, K., Nagashima, Y., Ejiri, A., Sakaguchi, M., Kalinnikova, E., Ishiguro, M., Tashima, S., Fukuyama, A., Igami, H., Kubo, S., Sharma, S. K. & 14 others, Ryokai, T., Liu, H. Q., Isobe, M., Nagaoka, K., Nakanishi, H., Nishino, N., Kawasaki, S., Nakashima, H., Higashijima, A., Takase, Y., Maekawa, T., Mitarai, O., Kikuchi, M. & Toi, K., Dec 1 2011, Radio Frequency Power in Plasmas - Proceedings of the 19th Topical Conference. p. 473-476 4 p. (AIP Conference Proceedings; vol. 1406).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)