Tanaka Hitoshi

Affiliation and department：
Job title： Professor

Research field (1)： Basic plasma science

Research theme for competitive and other funds (31)：

2021 - 2024 電子サイクロトロン加熱による超伝導トカマク起動法の開発
2018 - 2021 Non-inductive start-up of spherical tokamak by combination of electron beam injection and electron Bernstein heating
2018 - 2021 Intermittent plasma bursts across the last closed flux surface in a highly overdense spherical torus generated by electron Bernstein wave heating
2017 - 2020 Non inductive buildup of keV plasma using X-wave in fusion tokamak
2014 - 2017 Non-inductive formation of overdense spherical tokamak with EB wave in the first propagation band by Gaussian beams

2014 - 2017 Research on formation of closed flux surfaces in large tokamaks using ECH/ECCD

2012 - 2015 Electron Bernstein heating at an extremely overdense torus plasma

2011 - 2014 Improvement of ECH-driven plasma current startup by control of pitch angles of fast tail electrons

2011 - 2014 Study on the electrostatic potential in the formation of closed magnetic configuration

2008 - 2010 Study of non-inductive formation of magnetic surface by ECH for start-up of super conducting tokamaks

2007 - 2009 Study on magnetic reconnection driven by electromagnetic energy

2005 - 2006 Study on Magnetic Reconection Caused by Electromagnetic Energy

2002 - 2004 Start-Up and Formation of Spherical Tokamak Equilibria by Electron Bernstein Wave Current Drive

2001 - 2003 Controlled Experiment of Relaxation Processes of Many-Particle System Using Strongly Magnetized Nonneutral Plasma

2001 - 2002 Formation and Sustainment of Spherical Tokamak by Electron Cyclotron Heating

2000 - 2001 Observation of Three Dimensional Heat Flow in Disruptive Processes in Tokamak Plasma

1998 - 1999 On-axis ECCD by Strongly Focused mm Waves

1997 - 1998 Experiments on Echoes in Nonneutral Plasmas

1996 - 1997 Formation of Plasma potential by means of ECH at divertor and peripheral region of plasma

1996 - 1997 Experiments on the Stability and Equilibrium of Nonneutral Plasmas in Ultra High Magnetie Field

1995 - 1996 Experiments on Nonlinear Waves in Nonneutral Plasmas

1994 - 1995 Fundamental Experiment on Condensed Positrons

1993 - 1995 Experiments on Characteristics and Control of Positron Plasma

1994 - 1994 非中世プラズマ中のソリトン

1991 - 1993 Development of Positron Mass-Production Method

1991 - 1992 Experiment on Ion-Beam-Collider for D-^3He Fusion

1990 - 1990 RFによる高βpプラズマの生成と第2安定領域

1989 - 1989 双方向高速電子流による高βpプラズマの生成

1989 - 1989 マイクロ波透過法による高速電子群を含むプラズマの温度計測

1988 - 1989 Current Profile by Sub-mm Wave Polarimeter and Study of MHD Instabilities

1986 - 1987 Tokamak Current Drive by Injection of High Current Electron Beams

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Papers (73)：

T Maekawa, H Tanaka, M Uchida. Mapping of power deposition zone of electron Bernstein waves externally excited in tokamak plasmas. Plasma Physics and Controlled Fusion. 2019. 61. 10. 105017-105017
T. Maekawa, M. Uchida, H. Tanaka. Non-inductive build-up of a hot plasma by X-wave ECH/ECCD to remove initial high loop-voltage from start-up of fusion tokamaks. NUCLEAR FUSION. 2018. 58. 1
A. Ejiri, H. Tanaka, W. Takahashi, A. Sato, Y. Takase, N. Tsujii, M. Uchida, T. Makekawa. Observation of High Impurity Ion Temperatures in ECW/EBW Sustained Plasmas on LATE. Plasma and Fusion Research. 2017. 12. 1202041-1202041
H. Tanaka, M. Uchida, T. Maekawa, Y-S. Bae, M. Joung, J. H. Jeong. Non-inductive initiation of closed flux surfaces by ECH/ECCD on KSTAR using an oblique fundamental O-mode injection from the low-field side. NUCLEAR FUSION. 2016. 56. 4. 046003
Kengoh Kuroda, Manato Wada, Masaki Uchida, Hitoshi Tanaka, Takashi Maekawa. Shift in principal equilibrium current from a vertical to a toroidal one towards the initiation of a closed flux surface in ECR plasmas in the LATE device. PLASMA PHYSICS AND CONTROLLED FUSION. 2016. 58. 2. 025013

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MISC (55)：

H. Tanaka, T. Kuzuma, R. Ashida, R. Kajita, T. Nagaeki, T. Nakai, S. Matsui, S. Yamagata, R. Nakai, X. Guo, et al. Electron Beam Injection to Non-Inductively-Produced Spherical Tokamak Plasmas by Electron Bernstein Wave in LATE. Proc. 28th IAEA Fusion Energy Conference, IAEA-CN-214, EX/P7-18, Nice, France, (Virtual Event) 2021, May 10 -15. 2021
R. Kajita, Y. Nozawa, X. Guo, R. Ashida, R. Nakai, T. Nagaeki, Y. Ideta, S. Yoshioka, M. Uchida, H. Tanaka, et al. Sawtooth-like density oscillations in the overdense ST plasma produced by EBW on LATE. Korea-Japan Workshop on Physics and Technology of Heating and Current Drive, (Online), 2021, February 25 - 26. 2021
X. Guo, R. Ashida, Y. Nozawa, R. Kajita, R. Nakai, T. Nagaeki, Y. Ideta, S. Yoshioka, H. Tanaka, M. Uchida, et al. Measurement of Mode-Conversion Process to Electron Bernstein Waves in Low Aspect ratio Torus Experiment. The 29th International Toki Conference, Toki, Japan, 2020, October 27 - 30, F2-6. 2020
H. Tanaka, Y. Nozawa, R. Kajita, X. Guo, T. Kuzuma, T. Nakai, S. Matsui, S. Yamagata, R. Ashida, R. Nakai, et al. Overview of recent progress on non-inductive start-up experiment in LATE. 20th International Spherical Torus Workshop, Frascati, Italy, 2019, October 28 - 31. 2019
Y. Nozawa, R. Kajita, M.Uchida, H. Tanaka, T. Makawa. Effective electron Bernstein wave heating by polarization adjustment of incident microwave for non-inductive formation of spherical tokamak in LATE. 46th EPS Conference on Plasma Physics, Miran, Italy, 2019, July 8 - 12. 2019

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Lectures and oral presentations (12)：

電子バーンスタイン波で生成された球状トカマクプラズマへの電子ビーム入射実験
(プラズマ・核融合学会第36回年会 2020)
電子サイクロトロン加熱・電流駆動と冷陰極電子ビーム入射による無誘導電流立ち上げ
(プラズマ・核融合学会第35回年会 2018)
電子バーンスタイン波による無誘導球状トカマク立ち上げ時のパラメトリック崩壊不安定性の観測
(Plasma Conference 2017 2017)
電子バーンスタイン波による超臨界密度/オーバーデンス球状トカマクプラズマの加熱
(日本物理学会第72回年次大会 2017)
電子バーンスタイン波による無誘導球状トカマク立ち上げのEC共鳴層位置に対する依存性
(プラズマ・核融合学会第33回年会 2016)

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