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  • Akihide Fujisawa
2011

Verification of wavelet analysis for a heat pulse propagation experiment

Kobayashi, T., Inagaki, S., Itoh, S. I., Ida, K., Oldenbürger, S., Tsuchiya, H., Nagayama, Y., Kawahata, K., Yamada, H., Sasaki, M., Fujisawa, A. & Itoh, K., Sep 1 2011, In : Plasma Physics and Controlled Fusion. 53, 9, 095012.

Research output: Contribution to journalArticle

5 Citations (Scopus)
2015

Edge plasma dynamics during L-H transition in the JFT-2M tokamak

Kobayashi, T., Itoh, K., Ido, T., Kamiya, K., Itoh, S. I., Miura, Y., Nagashima, Y., Fujisawa, A., Inagaki, S., Ida, K. & Hoshino, K., Jun 1 2015, In : Nuclear Fusion. 55, 6, 063009.

Research output: Contribution to journalArticle

5 Citations (Scopus)
2016

Tomography as a diagnostic tool for plasma turbulence

Fujisawa, A., Nagashima, Y., Yamasaki, K., Inagaki, S., Onchi, T., Ohshima, S. & Shimizu, A., Jan 1 2016.

Research output: Contribution to conferencePaper

2013

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., Dec 23 2013, 2013 IEEE 25th Symposium on Fusion Engineering, SOFE 2013. 6635507. (2013 IEEE 25th Symposium on Fusion Engineering, SOFE 2013).

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

1 Citation (Scopus)
2014

Study of non-linear coupling of fluctuations at long distance in LHD

Shigeru, I., Tokuzawa, T., Kobayashi, T., Itoh, S., Itoh, K., Ida, K., fujisawa, A., Kubo, S., Shimozuma, T., Tamura, N., Kasuya, N., Tsuchiya, H. & Nagayama, Y., Oct 1 2014, In : Nuclear Fusion. 54, 11, 114014.

Research output: Contribution to journalArticle

5 Citations (Scopus)
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)
2019

Comparison of conditional average using threshold and template methods for quasi-periodic phenomena in plasmas

ASDEX Upgrade Team, Jan 1 2019, In : Plasma and Fusion Research. 14, 1402114.

Research output: Contribution to journalArticle

Open Access
2013

Higher harmonics in a perturbative transport experiment

Lhd Experiment Group, Jan 1 2013, In : Plasma and Fusion Research. 8, 1202173.

Research output: Contribution to journalArticle

11 Citations (Scopus)
2012

Statistical features of coherent structures at increasing magnetic field pitch investigated using fast imaging in QUEST

Banerjee, S., Zushi, H., Nishino, N., Hanada, K., Sharma, S. K., Honma, H., Tashima, S., Inoue, T., Nakamura, K., Idei, H., Hasegawa, M. & Fujisawa, A., Dec 1 2012, In : Nuclear Fusion. 52, 12, 123016.

Research output: Contribution to journalArticle

11 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

9 Citations (Scopus)
2012

A plasma shape identification with magnetic analysis for the real-time control on QUEST

Hasegawa, M., Nakamura, K., Tokunaga, K., Zushi, H., Hanada, K., fujisawa, A., Idei, H., Kawasaki, S., Nakashima, H. & Higashijima, A., Oct 5 2012, In : IEEJ Transactions on Fundamentals and Materials. 132, 7

Research output: Contribution to journalArticle

13 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)
2019

Roles of solitary eddy and splash in drift wave-zonal flow system in a linear magnetized plasma

Arakawa, H., Sasaki, M., Inagaki, S., Kosuga, Y., Kobayashi, T., Kasuya, N., Yamada, T., Nagashima, Y., Kin, F., Fujisawa, A., Itoh, K. & Itoh, S. I., May 1 2019, In : Physics of Plasmas. 26, 5, 052305.

Research output: Contribution to journalArticle

Open Access
2015

Observation of heat flux and plasma flow in scrape off layer in QUEST

Onchi, T., Mahira, Y., Nagaoka, K., Tashima, S., Banerjee, S., Mishra, K., Idei, H., Hanada, K., Nakamura, K., Fujisawa, A., Nagashima, Y., Hasegawa, M., Matsuoka, K., Kuzmin, A., Watanabe, O., Kawasaki, S., Nakashima, H. & Higashijima, A., Jul 22 2015, In : Journal of Nuclear Materials. 463, p. 428-431 4 p., 48807.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2012

Fast visible imaging and edge turbulence analysis in QUEST

Banerjee, S., Zushi, H., Nishino, N., Nagashima, Y., Hanada, K., Ishiguro, M., Ryoukai, T., Tashima, S., Inoue, T., Nakamura, K., Idei, H., Hasegawa, M., Fujisawa, A. & Matsuoka, K., Oct 1 2012, In : Review of Scientific Instruments. 83, 10, 10E524.

Research output: Contribution to journalArticle

7 Citations (Scopus)
2018

Spatio-temporal dynamics of turbulence trapped in geodesic acoustic modes

Sasaki, M., Kobayashi, T., Itoh, K., Kasuya, N., Kosuga, Y., Fujisawa, A. & Itoh, S. I., Jan 1 2018, In : Physics of Plasmas. 25, 1, 012316.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Evaluation of measurement signal of heavy ion beam probe of energetic-particle driven geodesic acoustic modes

Sasaki, M., Itoh, K., Ido, T., Shimizu, A., Kobayashi, T., Arakawa, H., Kasuya, N., Fujisawa, A. & Itoh, S. I., Jan 1 2018, In : Plasma and Fusion Research. 13, 3403040.

Research output: Contribution to journalArticle

Open Access
2017

Phenomenological classification of turbulence states in linear magnetized plasma PANTA

Kobayashi, T., Inagaki, S., Sasaki, M., Kosuga, Y., Arakawa, H., Kin, F., Yamada, T., Nagashima, Y., Kasuya, N., Fujisawa, A., Itoh, S. I. & Itoh, K., Jan 1 2017, In : Plasma and Fusion Research. 12, 1401019.

Research output: Contribution to journalArticle

8 Citations (Scopus)
2011

Non-inductive start up of QUEST plasma by RF power

Hanada, K., Zushi, H., Idei, H., Nakamura, K., Ishiguro, M., Tashima, S., Kalinnikova, E. I., Sakamoto, M., Hasegawa, M., Fujisawa, A., Higashijima, A., Kawasaki, S., Nakashima, H., Liu, H., Mitarai, O., Maekawa, T., Fukuyama, A., Takase, Y. & Qian, J., Jun 1 2011, In : Plasma Science and Technology. 13, 3, p. 307-311 5 p.

Research output: Contribution to journalArticle

23 Citations (Scopus)
2016

Comparative studies of inner and outer divertor discharges and a fueling study in QUEST

QUEST group, Jan 1 2016, In : Fusion Engineering and Design. 109-111, p. 1365-1370 6 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)
2013
1 Citation (Scopus)
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)
2019

Ion temperature measurement by laser-induced fluorescence spectroscopy in panta

Arakawa, H., Inagaki, S., Kosuga, Y., Sasaki, M., Kin, F., Hasamada, K., Yamasaki, K., Kobayashi, T., Yamada, T., Nagashima, Y., Fujisawa, A., Kasuya, N., Itoh, K. & Itoh, S. I., Oct 1 2019, In : IEEJ Transactions on Electrical and Electronic Engineering. 14, 10, p. 1450-1454 5 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2017

Measurement of thickness of film deposited on the plasma-facing wall in the QUEST tokamak by colorimetry

Wang, Z., Hanada, K., Yoshida, N., Shimoji, T., Miyamoto, M., Oya, Y., Zushi, H., Idei, H., Nakamura, K., Fujisawa, A., Nagashima, Y., Hasegawa, M., Kawasaki, S., Higashijima, A., Nakashima, H., Nagata, T., Kawaguchi, A., Fujiwara, T., Araki, K., Mitarai, O. & 3 others, Fukuyama, A., Takase, Y. & Matsumoto, K., Sep 1 2017, In : Review of Scientific Instruments. 88, 9, 093502.

Research output: Contribution to journalArticle

3 Citations (Scopus)
2014

Thermal imaging of plasma with a phased array antenna in QUEST

Mishra, K., Idei, H., Zushi, H., Nagata, K., Akimoto, R., Yamamoto, M. K., Hanada, K., Hasegawa, M., Nakamura, K., Fujisawa, A., Nagashima, Y., Banerjee, S., Onchi, T. & Kuzmin, A., Nov 2014, In : Review of Scientific Instruments. 85, 11, 11E808.

Research output: Contribution to journalArticle

7 Citations (Scopus)
2011

Dynamic interaction between a solitary drift wave structure and zonal flows in a linear cylindrical device

Arakawa, H., Kobayashi, T., Shigeru, I., Kasuya, N., Oldenbürger, S., Nagashima, Y., Yamada, T., Yagi, M., fujisawa, A., Itoh, K. & Itoh, S., Nov 1 2011, In : Plasma Physics and Controlled Fusion. 53, 11, 115009.

Research output: Contribution to journalArticle

13 Citations (Scopus)
2018

Nonlinear characteristics of mediator and streamer in linear magnetized plasmas

Kin, F., Fujisawa, A., Itoh, K., Kosuga, Y., Sasaki, M., Yamada, T., Inagaki, S., Itoh, S. I., Kobayashi, T., Nagashima, Y., Kasuya, N., Arakawa, H., Yamasaki, K. & Hasamada, K., Jan 1 2018, 45th EPS Conference on Plasma Physics, EPS 2018. Berndt, J., Coda, S., Lapenta, G., Michaut, C., Weber, S. & Mantsinen, M. (eds.). European Physical Society (EPS), p. 565-568 4 p. (45th EPS Conference on Plasma Physics, EPS 2018; vol. 2018-July).

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

2011

Eddy current-adjusted plasma shape reconstruction by Cauchy condition surface method on QUEST

Nakamura, K., Jiang, Y., Liu, X. L., Mitarai, O., Kurihara, K., Kawamata, Y., Sueoka, M., Hasegawa, M., Tokunaga, K., Zushi, H., Hanada, K., Fujisawa, A., Sakamoto, M., Idei, H., Kawasaki, S., Nakashima, H., Higashijima, A. & Araki, K., Oct 1 2011, In : Fusion Engineering and Design. 86, 6-8, p. 1080-1084 5 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
2016

Tomography as a promising diagnostic tool for plasma turbulence

Fujisawa, A., Nagashima, Y., Inagaki, S., Onchi, T., Ohshima, S. & Shimizu, A., Jan 11 2016, In : Plasma Physics and Controlled Fusion. 58, 2, 025005.

Research output: Contribution to journalArticle

12 Citations (Scopus)
2011

Observation of nonlinear coupling between low frequency coherent modes and background turbulence in LMD-U

Kobayashi, T., Inagaki, S., Arakawa, H., Oldenbürger, S., Nagashima, M. S., Yamada, T., Sugita, S., Yagi, M., Kasuya, N., Fujisawa, A., Itoh, S. I. & Itoh, K., Dec 1 2011, In : Plasma and Fusion Research. 6, 1 SPECIAL ISSUE, 2403082.

Research output: Contribution to journalArticle

2017

Turbulent transport reduction induced by transition on radial electric field shear and curvature through amplitude and cross-phase in torus plasma

Kobayashi, T., Itoh, K., Ido, T., Kamiya, K., Itoh, S. I., Miura, Y., Nagashima, Y., Fujisawa, A., Inagaki, S. & Ida, K., Dec 1 2017, In : Scientific reports. 7, 1, 14971.

Research output: Contribution to journalArticle

10 Citations (Scopus)
2012

Evaluation of electron temperature fluctuations using a conditional technique

Yamada, S., Inagaki, S., Oldenbürger, S., Kobayashi, T., Kawashima, K., Ohyama, N., Tobimatsu, Y., Arakawa, H., Nagashima, Y., Yamada, T., Sasaki, M., Yagi, M., Kasuya, N., Fujisawa, A., Itoh, S. I. & Itoh, K., Dec 1 2012, In : Plasma and Fusion Research. 7, SPL.ISS.1, 2401133.

Research output: Contribution to journalArticle

2019
2016

Experimental Identification of Electric Field Excitation Mechanisms in a Structural Transition of Tokamak Plasmas

Kobayashi, T., Itoh, K., Ido, T., Kamiya, K., Itoh, S. I., Miura, Y., Nagashima, Y., Fujisawa, A., Inagaki, S., Ida, K. & Hoshino, K., Aug 4 2016, In : Scientific reports. 6, 30720.

Research output: Contribution to journalArticle

12 Citations (Scopus)

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

2011

Observation of nonlinear coupling between low frequency coherent modes and background turbulence in LMD-U

Kobayashi, T., Inagaki, S., Arakawa, H., Oldenbürger, S., Sasaki, M., Nagashima, Y., Yamada, T., Sugita, S., Yagi, M., Kasuya, N., Fujisawa, A., Itoh, S. I. & Itoh, K., Jan 1 2011, In : Plasma and Fusion Research. 6, 2401082.

Research output: Contribution to journalArticle

8 Citations (Scopus)
2016

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)
2018

Symmetry-breaking of turbulence structure and position identification in toroidal plasmas

Itoh, K., Itoh, S. I., Nagashima, Y., Yamada, T., Kosuga, Y. & Fujisawa, A., Jan 1 2018, In : Plasma and Fusion Research. 13, 1102113.

Research output: Contribution to journalArticle

Open Access
2013

Sawtooth-triggered limit-cycle oscillations and I-phase in the HL-2A tokamak

Zhao, K. J., Cheng, J., Diamond, P. H., Dong, J. Q., Yan, L. W., Hong, W. Y., Xu, M., Tynan, G., Miki, K., Huang, Z. H., Itoh, K., Itoh, S. I., Fujisawa, A., Nagashima, Y., Inagaki, S., Wang, Z. X., Wei, L., Song, X. M., Lei, G. J., Li, Q. & 5 others, Ji, X. Q., Liu, Y., Yang, Q. W., Ding, X. T. & Duan, X. R., Dec 1 2013, In : Nuclear Fusion. 53, 12, 123015.

Research output: Contribution to journalArticle

8 Citations (Scopus)
2016

Eddy, drift wave and zonal flow dynamics in a linear magnetized plasma

Arakawa, H., Inagaki, S., Sasaki, M., Kosuga, Y., Kobayashi, T., Kasuya, N., Nagashima, Y., Yamada, T., Lesur, M., Fujisawa, A., Itoh, K. & Itoh, S. I., Sep 15 2016, In : Scientific reports. 6, 33371.

Research output: Contribution to journalArticle

13 Citations (Scopus)
2019
1 Citation (Scopus)
2015

Azimuthal inhomogeneity of turbulence structure and its impact on intermittent particle transport in linear magnetized plasmas

Kobayashi, T., Inagaki, S., Sasaki, M., Kosuga, Y., Arakawa, H., Yamada, T., Nagashima, Y., Miwa, Y., Kasuya, N., Fujisawa, A., Itoh, S. I. & Itoh, K., Nov 2015, In : Physics of Plasmas. 22, 11, 112301.

Research output: Contribution to journalArticle

6 Citations (Scopus)
2017

Fast algorithm for tomographic reconstruction for plasma emission

Yamasaki, K., Fujisawa, A., Nagashima, Y. & Inagaki, S., Jan 1 2017, In : Plasma and Fusion Research. 12, 1201045.

Research output: Contribution to journalArticle

2 Citations (Scopus)
2013

Spatial structures and interaction of multiple sheared flow populations in tokamak edge turbulence

Zhao, K. J., Dong, J. Q., Yan, L. W., Diamond, P. H., Cheng, J., Hong, W. Y., Huang, Z. H., Xu, M., Tynan, G. R., Itoh, K., Itoh, S. I., Fujisawa, A., Nagashima, Y., Inagaki, S., Wang, Z. X., Wei, L., Li, Q., Ji, X. Q., Huang, Y., Liu, Y. & 5 others, Zhou, J., Song, X. M., Yang, Q. W., Ding, X. T. & Duan, X. R., Aug 1 2013, In : Nuclear Fusion. 53, 8, 083011.

Research output: Contribution to journalArticle

4 Citations (Scopus)
2015

Dynamical programming based turbulence velocimetry for fast visible imaging of tokamak plasma

Banerjee, S., Zushi, H., Nishino, N., Mishra, K., Onchi, T., Kuzmin, A., Nagashima, Y., Hanada, K., Nakamura, K., Idei, H., Hasegawa, M. & Fujisawa, A., Mar 1 2015, In : Review of Scientific Instruments. 86, 3, 033505.

Research output: Contribution to journalArticle

3 Citations (Scopus)
2014

Development of a plasma control system for steady-state operation on QUEST

Hasegwa, M., Nakamura, K., Zushi, H., Hanada, K., Fujisawa, A., Matsuoka, K., Idei, H., Nagashima, Y., Tokunaga, K., Kawasaki, S., Nakashima, H. & Higashijima, A., Jan 1 2014, In : Journal of the Korean Physical Society. 65, 8, p. 1191-1195 5 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

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)
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

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)
2014

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)