Contributed Presentations in Conferences (last update 2011-08-26)
Joint U.S.-EU Transport Task Force Workshop (2009/4/28 -5/1, San Diego, USA)


  1. K. Ida
    Non-diffusive and non-local transport in toroidal plasmas

  2. N. Kasuya, M. Yagi, K. Itoh and S.-I. Itoh
    Numerical simulation of streamer formation in magnetized cylindrical plasmas


4th IAEA-Technical Meeting on the Theory of Plasma Instabilities (2009/5/18-5/20, Kyoto Univ. (Clock Tower Centennial Hall), Kyoto, Japan)


  1. N. Kasuya, M. Yagi, K. Itoh and S.-I. Itoh
    Nonlinear formation of poloidally localized structure in numerical simulation of resistive drift wave turbulence(P1-02)

  2. K.Itoh, S. –I. Itoh, M. Yagi and A. Fukuyama
    Seesaw Mechanism in Turbulence and Turbulent Transport(P1-11)

  3. S. Tokunaga, M.Yagi, S. –I. Itoh and K. Itoh
    Safety factor profile dependence of turbulent structure formation in relevant to internal transport barrier relaxation(P2-01)

  4. M.Yagi, S. Nishimura, S. –I. Itoh and K. Itoh
    Nonlinear simulation study of drift tearing mode with neoclassical electorn viscosity(P2-02)

  5. S. Sugita, M.Yagi, S. –I. Itoh and K. Itoh
    Turbulent transport dominated by meso-scale structure in Tokamak scrape-off layer(P2-21)


3rd ITER International Summer School (2009/06/22-06/26, Aix-en Provence, France)

S. Sugita, M.Yagi, S. –I. Itoh and K. Itoh
Turbulent transport dominated by meso-scale structure in Tokamak scrape-off layer

Festival de Theorie 2009 (2009/07/06-07/24, Aix-en Provence, France)

S. Sugita, M.Yagi, S. –I. Itoh and K. Itoh
Ballistic Radial Transport in SoL Dominated by Meso-scale Structure Using 2D Model

3rd Simulation Science Symposium (2009/9/17-9/18, National Institute for Fusion Science, Toki, Japan)

N. Kasuya, S. Nishimura, M. Yagi, K. Itoh, S.-I. Itoh and N. Ohyabu
Development of turbulence diagnostic simulator

2009 Autumn Meeting of the Physical Society of Japan (2009/09/25-09/28, Kumamoto Univ. (Kurokami Campus), Kumamoto, Japan)


  1. N. Kasuya, S. Nishimura, M. Yagi, K. Itoh, S.-I. Itoh and N. Ohyabu
    Research plan of turbulence diagnostic simulator and a model adopted in the simulator(28aYP-3)

  2. H. Arakawa, S. Inagaki, K. Kamataki, Y. Nagashima, T. Yamada, S. Sugita, M. Yagi, K. Kasuya, A. Fujisawa, K. Itoh, and S. -I. Itoh
    Phase diagram of plasma turbulence structures on LMD-U (28aYL-3)

  3. K. Ida, Y. Sakamoto, M.Yoshinuma, K. Nagaoka, M. Yokoyama, T. Suzuki, K. Shinohara, M. Yoshida
    Dynamics of ion internal transport barrier in LHD heliotron and JT-60U tokamak plasmas(27pYP-4)


12th International Workshop on H-mode Physics and Transport Barriers (2009/9/30-10/2, Princeton University, Plasma Physics Laboratry)

  1. K. Ida, M.Yoshinuma, K. Nagaoka, M. Osakabe, S. Morita, M.Goto, M. Yokoyama, H. Funaba, K. Ikeda, H. Nakano K. Tsumori, Y. Takeiri, O. Kaneko and LHD experiment group
    Spontaneous Toroidal Rotation Driven by the Off-diagonal Term of Momentum and Heat Transport in the Plasma with Ion Internal Transport Barrier in LHD(P4-1)

  2. S. Inagaki, N. Tamura, K. Ida, S. S. Kubo, T. Shimozuma, Y. Nagayama, K. Kawahata, S. Sudo, A. Fujisawa, K. Itoh, S.-I. Itoh and LHD Experimental Group
    Internal transport barrier formation induced by edge perturbation on LHD(P4-6)


APFA2009/APPTC2009(2009/10/27-30, Aomori, Japan)

  1. S. Tokunaga
    Global simulation study of ion internal transport berrier dynamics(P28p-53)

  2. M. Yagi
    Multi-scale Simulatin Study of MHD and Plasma Turbulence(P30p-16)

  3. N. Kasuya
    Turbulence diagnostic simulator for analyzing structural formation in magnetically confined plasmas(P30p-19)


51th Annual Meeting of the American Physical Society Division of Plasma Physics (2009/11/2-11/6, Hyatt Regency Atlanta, Atlanta, GA, USA)

  1. S. Toda and K. Itoh
    Effect of the helical ripple on the confinement via zonal flows in helical plasmas(UP8.00069)

  2. H. Arakawa, S. Inagaki, K. Kamataki, M. Yagi, S. Sugita, S.-I. Itoh, Y. Nagashima, T. Yamada, N. Kasuya, A. Fujisawa, K. Itoh
    Temporal sequences in the evolution of fluctuations on LMD-U (GP8.00146)


19th International Toki Conference on “Advanced Physics in Plasma and Fusion Research” (2009/12/08-11, Toki, Japan)

  1. T. Yamada, S. –I. Itoh, S. Inagaki, Y. Nagashima, S. Shinohara, N.Kasuya, K. Terasaka, K. Kamataki, H. Arakawa, M. Yagi, A. Fujisawa and K. Itoh
    Nonlinear mode couplings in a cylindrical magnetized plasma (O-5)

  2. K. Kamataki, S. –I. Itoh, S. Inagaki, Y. Arakawa, Y. Nagashima, T. Yamada, M. Yagi, A. Fujisawa and K. Itoh
    ECRH Superposition on Linear Cylindrical Helicon Plasma in LMD-U (P1-95)

  3. T. Kobayashi, S. Inagaki, H. Arakawa, K. Kamataki, Y. Nagashima, T. Yamada, S. Sugita, M. Yagi, N. Kasuya, A. Fujisawa, S. –I. Itoh and K. Itoh
    Bi-spectral analysis of density and potential flucutuations in a high neutral density cylindrical plasma (P2-20)

  4. H. Arakawa, S. Inagaki, Y. Nagashima, T. Yamada, K. Kamataki, T. Kobayashi, S. Sugita, M. Yagi, N. Kasuya, A. Fujisawa, K. Itoh and S. –I. Itoh
    Probability distribution function of density fluctuation in cyclindrical helicon plasma (P2-21)

  5. N. Kasuya, S. Nishimura, M. Yagi, K. Itoh, S.-I. Itoh and N. Ohyabu
    Turbulence Diagnostic Simulatior – drift-interchange instability and measurement of turbulenct fields in helical plasma (P2-22)

  6. S. Nishimura, M. Yagi, N. Kasuya, K. Itoh, S. –I. Itoh, and N. Ohyabu
    Turbulence Diagnostic Simulator – measurement of magnetic island (P2-32)


13th Assembly of Kyushu-Okinawa-Yamaguchi Branch, Japan Society of Plasma Science and Fusion Research (2009/12/22-12/23, Yamaguchi Univ., Yamaguchi, Japan)

  1. M. Shimoda, S. Inagaki, K. Kamataki, H. Arakawa, M. Yagi, S.-I. Itoh, Y. Nagashima, T. Yamada, N. Kasuya, A. Fujisawa, K. Itoh
    Statistical properties of radial particle flux in LMD-U(E-4)

  2. M. Yagi, T. Voslion, S. –I. Itoh, O. Agullo, S. Benkadda, K. Itoh
    Multi-scale Simulation Study of MHD and Plasma Turbulence (P-16)

  3. T. Kobayashi, S. Inagaki, H. Arakawa, K. Kamataki, Y. Nagashima, T. Yamada, S. Sugita, M. Yagi, N. Kasuya, A. Fujisawa, S. –I. Itoh and K. Itoh
    Bi-spectral analysis of density and potential flucutuations in a low neutral density cylindrical plasma(P-17)

  4. H. Arakawa, S. Inagaki, Y. Nagashima, T. Yamada, K. Kamataki, T. Kobayashi, S. Sugita, M. Yagi, N. Kasuya, A. Fujisawa, K. Itoh and S. –I. Itoh
    Observation of chage of fluctuation phase velocity in LMD-U(P-18)

  5. K. Kamataki, S. –I. Itoh, S. Inagaki, Y. Arakawa, Y. Nagashima, T. Yamada, M. Yagi, A. Fujisawa and K. Itoh
    Change of flucutuation spectrum by ECRH superposition in LMD-U (P-19)


65th Annual Meeting of the Physical Society of Japan (2010/03/20-23, Okayama University, Okayama, Japan)

  1. S. Inagaki, M. Shimoda, H. Arakawa, K. Kamataki, Y. Nagashima, T. Yamada, A. Fujisawa, N. Kasuya, M. Yagi, K. Itoh, and S.-I. Itoh
    Statistical properties of fluctuation-driven transport in LMD-U(20pTJ-1)

  2. M. Yagi, S. –I. Itoh and K. Itoh
    Multi-scale Simulation Study of Internal Tansport Barrier (21pTE-6)

  3. S. Nishimura, M. Yagi, N. Kasuya, K. Itoh, S. –I. Itoh, and N. Ohyabu
    Nonlinear Simulation of Turbulent plasma and Development of Numerical Simutator (21pTE-10)

  4. T. Kobayashi, S. Inagaki, H. Arakawa, K. Kamataki, Y. Nagashima, T. Yamada, M. Yagi, N. Kasuya, A. Fujisawa, S. –I. Itoh and K. Itoh
    Nonlinear couplling analysis of density and potential flucutuations in LMD-U (23pTJ-1)

  5. H. Arakawa, S. Inagaki, Y. Nagashima, T. Yamada, K. Kamataki, T. Kobayashi, S. Sugita, M. Yagi, N. Kasuya, A. Fujisawa, K. Itoh and S. –I. Itoh
    Dynamics of transition of fluctuation phase velocity in LMD-U(23pTJ-2)


2010 Autumn Meeting of the Physical Society of Japan (2010/09/23-09/26, Oosaka Prefecture Univ. (Nakamozu Campus), Oosaka, Japan)

  1. K. Ida, H. Tsuchiya, N. Tamura, Y. Suzuki, M. Yoshinuma, S. Inagaki
    Velification of stochastic region on rational surface in LHD plasma

  2. T. Kobayashi, S. Inagaki, H. Arakawa, K. Kamataki, M. Sasaki, Y.Nagashima, T. Yamada, M. Yagi, N. Kasuya, A. Fujisawa, K. Itoh, and S.-I. Itoh
    Dependence of non-linear coupling of density fluctuation on magnetic field strength in LMD-U

  3. M. Sasaki, K. Itoh, S-I. Itoh
    Background ion heating by geodesic acoustic modes driven by energetic particles

  4. N. Kasuya, S. Nishimura, M. Yagi, K. Itoh and S.-I. Itoh
    Simulation of drift wave turbulence in cylindrical plasmas (relationship between density profiles and excited modes)

  5. S. Inagaki, M. Shimoda, H. Arakawa, K. Kamataki, Y. Nagashima, T. Yamada, A. Fujisawa, N. Kasuya, M. Yagi, K. Itoh, S.-I. Itoh
    Statistical characteristics of particle flux during the spectrum transition in LMD-U

  6. Y. Nagashima, J. Ozaki, M. Sonohara, Y. Takase, A. Ejiri, K. Yamada, E. Kakuda, O. Watanabe, T. Oosako, T. Yamaguchi, H. Kurashina, B.Ann, K. Kobayashi, Y. Hayashi, T. Sakamoto, K. Hanashima, J. Hiratsuka, T. Wakatsuki
    Estimation of electron temperature fluctuation by conditional method


US Transport Task Force Workshop 2010

K Ida
Formation and Dynamics of Internal Transport Barriers in Toroidal Plasmas

20th International Toki Conference on “Advanced Physics in Plasma and Fusion Research” (2010/12/07-10, Toki, Japan)

  1. K. Kawashima, Y. Miyoshi, S. Oldenbürger, S. Inagaki, H. Arakawa, Y. Nagashima, T. Yamada, M. Sasaki, T. Kobayashi, K. Uriu, S. Sugita, M. Yagi, N. Kasuya, A. Fujisawa, S. -I. Itoh and K. Itoh
    Evaluation of electron temperature fluctuation using two different probe techniques in plasma assembly for nonlinear turbulence analysis (PANTA) (P1-75)

  2. T. Kobayashi, S. Inagaki, H. Arakawa, S. Oldenburger, M. Sasaki, Y.Nagashima, T. Yamada, S. Sugita, M. Yagi, N. Kasuya, A. Fujisawa, S.-I. Itoh and K. Itoh
    Observation of Nonlinear Coupling between Low Frequency Coherent Modes and Background Turbulence in LMD-U (P1-85)

  3. M. Sasaki, K. Itoh, A. Ejiri, Y. Takase
    Characteristics of bulk ion heating by geodesic acoustic modes

  4. N. Kasuya, S. Nishimura, M. Yagi, K. Itoh, S.-I. Itoh
    Turbulence Diagnostic Simulator - development of numerical tools for turbulence analyses in helical plasmas


European Physical Society 37th Conference on Plasma Physics, Jun. 2010, Dublin, IRELAND

  1. S. Sugita, P. Beyer, G. Fuhr, F. Jaulmes, S. Benkadda, X. Garbet, M. Yagi, S.-I. Itoh, and K. Itoh
    3D Turbulence Simulations of the Impact of Plasma Rotation on Stiffness Level

  2. H. Arakawa, S. Inagaki, Y. Nagashima, T. Yamada, K. Kamataki, S. Sugita, M. Yagi, N. Kasuya, A. Fujisawa, S-I. Itoh, K. Itoh
    Spatio-temporal evolutions of different phase velocities on LMD-U


2010 Frontier Conference of Plasma Science (2010/09/1-3, National Institute for Fusion Science, Toki, Japan)

T.Kobayashi, S. Inagaki, H. Arakawa, M. Sasaki, Y. Nagashima, T.Yamada, M. Yagi, N. Kasuya, A. Fujisawa, K. Itoh, and S. -I. Itoh
Study on Nonlinear Coupling of Low Frequency Density Fluctuation in LMD-U

23rd International Atomic Energy Agency Fusion Energy Conference, Oct. 2010, Daejeon, KOREA

  1. S. Sugita, M. Yagi, S.-I. Itoh, and K. Itoh
    Study of Radial Particle Transport Accompanied with Plasma Blob and Self-organized Meso- scale Structure in Tokamak Scrape-off Layer

  2. S Tokunaga, M Yagi, S-I Itoh, K Itoh
    Equilibrium Flow Shear and Magnetic Shear Effect on Zonal Flow (THC/P8-05)

  3. M. Sasaki, K. Itoh, S-I. Itoh, M. Yagi, A. Fujisawa
    Dynamics of low frequency zonal flow driven by geodesic acoustic modes

  4. S. Inagaki, N. Tamuma, T. Tokuzawa, K. Ida, T. Shimozuma, S. Kubo, H. Tsuchiya, Y. Nagashima, K. Kawahata, S. Sudo, K. Itoh, S.-I.Itoh, LHD Experimental Group
    Radial Structure of Fluctuation in Electron ITB Plasmas of LHD

  5. N. Kasuya, S. Nishimura, M. Yagi, K. Itoh, S.-I. Itoh, N. Ohyabu
    Development of Turbulence Diagnostics on Three-Dimensional Fields Obtained by Numerical Simulations in Magnetically Confined Plasmas


5th Japan-Korea Workshop on ‘Theory and Simulation of Magnetic Fusion Plasmas’29-30 July 2010, POSCO International Center, POSTECH, Pohang Korea

S Tokunaga, M Yagi, S-I Itoh, K Itoh, SS Kim, HG Jhang and PH Diamond
Contrastive gyro-fluid simulation study of ITB formation (Oral)

52nd Annual Meeting of the American Physical Society Division of Plasma Physics 8-12 November 2010, Hyatt Regency Chicago, Chicago, Illinois

S Tokunaga, M Yagi, S-I Itoh, K Itoh and PH Diamond
Analysis of interaction mechanism of off-resonant mode in reversed shear plasma (TP9 101)

66th Annual Meeting of the Physical Society of Japan (2011/03/24-28, Niigata University, Niigata, Japan)

  1. H. Arakawa, S. Inagaki, Y. Ngashima, T.Kobayashi, Stella Oldenburger, M. Yagi, N. Kasuya, A. Fujisawa
    Nonlinear evolution of solitary wave in LMD-U

  2. M. Sasaki, K. Itoh, S-I. Itoh
    Selection rules of radial propagation of the geodesic acoustic modes

  3. K. Kawashima, S. Inagaki, S. Oldenbürger, H. Arakawa,T. Kobayashi,K. Uriu, N. Ooyama, Y. Tobimatsu, Y. Nagashima, T. Yamada,M. Yagi, N. Kasuya, M. Sasaki, A. Fujisawa,S.-I. Itoh, and K. Itoh
    Measurement of electron temperature fluctuations using triple probe method on Plasma Assembly for Nonlinear Turbulence Analysis (PANTA)

  4. T. Kobayashi, S. Inagaki, H. Arakawa, S. Oldenburger, M. Sasaki, Y. Nagashima, T. Yamada, S. Sugita, M. Yagi, N. Kasuya, A. Fujisawa, S.-I. Itoh, K. Itoh
    Observation of nonlinear couplings on spectral transition regime in LMD-U

  5. S. Inagaki, H. Arakawa, S. Oldenburger, Y. Nagashima, T. Yamada, M. Yagi, N. Kasuya, M. Sasaki, S.-I. Itoh, K. Itoh
    Status of plasma turbulence research in PANTA device

  6. T. Yamada
    Experimental study of drift wave - streamer system in linear magnetized plasmas

  7. S. Oldenbuerger,S.-I. Itoh,G. Bonhomme,F. Brochard,A. Fujisawa,M. Yagi,S. Inagaki,M. Sasaki,K. Itoh
    Study of turbulence in a magnetized plasma column using fast imaging

  8. N. Kasuya, M. Yagi, K. Itoh, S.-I. Itoh
    Method of detecting the global mode structure by using turbulence diagnostic simulator

  9. S. Sugita, M. Yagi, S.-I. Itoh, K. Itoh
    Simulation study of nonlocal radial transport due to plasma blob in scrape of layer


14th Assembly of Kyushu-Okinawa-Yamaguchi Branch, Japan Society of Plasma Science and Fusion Research (2010/12/18-12/19, Kyushu University, Fukuoka, Japan)

  1. S. Oldenburger, S.-I. Itoh, G. Bonhomme, F. Brochard, K. Itoh et al.
    Turbulence imaging and investigation of nonlinear couplings in a linear magnetized plasma (A.1)

  2. K. Uriu, S. Inagaki, H. Arakawa, T. Kobayashi, K. Kawashima, Y. Nagashima et al. Measurement of ion flow velocity by Mach probe in PANTA (B1)


8th Joint Conference on Fusion Energy (2010/06/10-11, Takayama, Gifu, Japan)

N. Kasuya, S. Nishimura, M. Yagi, K. Itoh, S.-I. Itoh and N. Ohyabu
Turbulence diagnostics using three-dimensional simulation data in toroidal plasmas (10A-29p)

CUP seminar: Modeling of Theory and Simulation of Fusion Plasmas (2010/08/30-09/01, Beijing, China)

N. Kasuya, S. Nishimura, M. Yagi, K. Itoh and S.-I. Itoh
Turbulence Diagnostics on 3-D Fields Obtained by Numerical Simulations in Magnetically Confined Plasmas

4th Simulation Science Symposium (2010/09/14-15, Toki, Gifu, Japan)

N. Kasuya, S. Nishimura, M. Yagi, K. Itoh and S.-I. Itoh
Numerical Measurement Using Turbulence Diagnostic Simulator

Asia winter school, NIFS Japan, 28 January 2010

K. Ida
Transport Physics in the Plasma Confined by Magnetic Field

2010 RFX-mod programme workshop, Padova Italy, 10-12 February 2010

  1. K. Ida, M.Yoshinuma, K. Nagaoka, M. Osakabe, S. Morita, M.Goto, H. Funaba, M. Yokoyama, K. Ikeda, H. Nakano K. Tsumori, Y. Takeiri, O. Kaneko and LHD experiment group
    Dynamics of Ion internal transport barrier in Large Helical Device

  2. K.Ida, S.Inagaki, M.Yoshinuma, Y.Narushima, T.Kobuchi, K.Y.Watanabe, H.Funaba, S.Sakakibara, T.Morisaki, K.Itoh
    Evidence of Stochastic Region near a Rational Surface in Core Plasmas of LHD


ITPA/US-Japan on MHD stability, NIFS Japan, 8-12 March 2010

K.Ida, S.Inagaki, M.Yoshinuma, Y.Narushima, T.Kobuchi, K.Y.Watanabe, H.Funaba, S.Sakakibara, T.Morisaki, K.Itoh
Evidence of Stochastic Region near a Rational Surface in Core Plasmas of LHD

14th IEA-RFP Workshop, Padova, Italy, 26-28 April 2010

K.Ida, LHD experiment group and JT-60 group
Transport in three-dimensional magnetic field: examples from JT-60U and LHD

Colloquium at Forschungszentrum Juelich GmbH, Julich Germany, 15 July 2010

K.Ida, LHD experiment group and JT-60 group
Physics of magnetic island and stochastic magnetic flux

Colloquium at Forschungszentrum Juelich GmbH, Julich Germany, 20 July 2010

K.Ida, LHD experiment group
Physics of spontaneous rotation in magnetically confined high temperature plasmas

Seminar in Heinrich-Heine-Universität Düsseldorf, Germany, 22 July 2010

K.Ida, M.Yoshinuma, LHD experiment group
Physics of spontaneous rotation in magnetically confined high temperature plasmas
Seminar in Heinrich-Heine-Universität Düsseldorf, Germany, 22 July 2010

Korea-Japan Diagnostic Seminar, Kyushu Japan, 26-29 August 2010

K.Ida
Charge exchange spectroscopy (CXS) in toroidal plasmas

IAEA Fusin Energy Conference, Daejeon Korea, 11-16 October 2010

K.Ida, H.Tuchiya, N.Tamura, Y.Suzuki, M.Yoshinuma, S.Inagaki1), T.Kobayashi1), C.Suzuki, Y.Narushima, T.Shimozuma, S.Kubo, H.Takahashi, LHD experiment group
Evidence of Stochastic Region near a Rational Surface in Core Plasmas (EXS/5-2)

5th ITPA Transport & Confinement Meeting, Seoul National University, Seoul, Korea, 18-20 October 2010

K.Ida, M.Yoshinuma, M.Yokoyama, M.Kobayashi, R.Burhenn and LHD experiment group Wendelstein 7-AS group
Impurity transport in stellarator