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Research Output 1988 2019

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Conference 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

Orbits
Current density
current density
orbits
Plasmas

Development of 28/35 GHz dual-frequency gyrotron for ECH study

Kariya, T., Imai, T., Minami, R., Tsumura, K., Ebashi, Y., Idei, H., Hanada, K., Ono, M., Komurasaki, K., Numakura, T., Endo, Y. & Nakashima, Y., Oct 11 2016, Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement. Arakcheev, A. & Sudnikov, A. (eds.). American Institute of Physics Inc., 030020. (AIP Conference Proceedings; vol. 1771).

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

output
power supplies
sapphire
oscillations
pulses
2013
1 Citation (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., 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

Plasmas
Orbits
Anisotropy
Electrons
2012

The role of energetic electrons on non-inductive current start-up and formation of an inboard poloidal field null configuration in the spherical tokamak QUEST

Tashima, S., Zushi, H., Isobe, M., Idei, H., Okamura, S., Hanada, K., Nakamura, K., fujisawa, A., Matsuoka, K., Hasegawa, M., Nagashima, Y., Ishiguro, M., Kawasaki, S., Nakashima, H. & Higashijima, A., Dec 1 2012, 39th EPS Conference on Plasma Physics 2012, EPS 2012 and the 16th International Congress on Plasma Physics. p. 305-308 4 p. (39th EPS Conference on Plasma Physics 2012, EPS 2012 and the 16th International Congress on Plasma Physics; vol. 1).

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

configurations
electrons
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

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

Antenna phased arrays
Heating
Electrons
Thermal load
Experiments
1 Citation (Scopus)

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

plasma currents
phased arrays
cyclotrons
antennas
heating
2010

Development of CW phased-array antenna system for electron Bernstein heating and current drive experiments in QUEST

Idei, H., Sakaguchi, M., Kalinnikova, E., Nagata, K., Zushi, H., Hanada, K., Nakamura, K., Sakamoto, M., Hasegawa, M., Takase, Y., Maekawa, T., Mitarai, O., Fukuyamaf, A., Kawasaki, S., Nakashima, H. & Higashijima, A., Nov 30 2010, IRMMW-THz 2010 - 35th International Conference on Infrared, Millimeter, and Terahertz Waves, Conference Guide. 5612352

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

Antenna phased arrays
Thermal load
Thermal stress
Polarization
Heating

Differential-phase reflectometry using phased-array antenna system in QUEST

Nagata, K., Idei, H., Sakaguchi, M., Dono, K., Wataya, Y., Kawasaki, S., Zushi, H., Hanada, K., Nakamura, K., Sakamoto, M., Hasegawa, M., Higashizono, Y., Takase, Y., Maekawa, T., Mitarai, O., Kishimoto, Y., Nakashima, H. & Higashijima, A., Nov 30 2010, IRMMW-THz 2010 - 35th International Conference on Infrared, Millimeter, and Terahertz Waves, Conference Guide. 5612434

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

Antenna phased arrays
Launching
Antennas
Heating
Electrons

Electron bernstein wave emission diagnostics using phased-array antenna system in QUEST

Idei, H., Nagata, K., Sakaguchi, M., Kalinnikova, E., Fukuyama, A., Ohdachi, S., Shigeru, I., Nagayama, Y., Kawahata, K., Igami, H., Kubo, S., Shimozuma, T., Zushi, H., Hanada, K., Sato, K. N., Nakamura, K., Sakamoto, M., Hasegawa, M., Takase, Y., Maekawa, T. & 4 others, Mitarai, O., Kawasaki, S., Nakashima, H. & Higashijima, A., Nov 30 2010, IRMMW-THz 2010 - 35th International Conference on Infrared, Millimeter, and Terahertz Waves, Conference Guide. 5612710. (IRMMW-THz 2010 - 35th International Conference on Infrared, Millimeter, and Terahertz Waves, Conference Guide).

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

Antenna phased arrays
Electron emission
Transducers
Waveguides
Polarization

The role of fast electrons on the non-inductive current ramp-up in QUEST

Tashima, S., Zushi, H., Isobe, M., Okamura, S., Idei, H., Hanada, K., Sharma, S. K., Ryoukai, T., Ishiguro, M. & Liu, H., Dec 1 2010, 37th EPS Conference on Plasma Physics 2010, EPS 2010. Vol. 3. p. 1716-1719 4 p.

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

ramps
recycling
electrons
magnetic field configurations
pulse amplitude
2009
3 Citations (Scopus)

Phased-array antenna for electron Bernstein wave heating and current drive in QUEST

Idei, H., Sakaguchi, M., Kasahara, H., Saito, K., Tsukamoto, M., Hanada, K., Zushi, H., Sato, K. N., Nakamura, K., Sakamoto, M., Hasegawa, M., Higashizono, Y., Takase, Y., Maekawa, T., Mitarai, O., Kishimoto, Y., Kawasaki, S., Nakashima, H. & Higashijima, A., Dec 31 2009, 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009. 5324704. (34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009).

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

Antenna phased arrays
heat pump
Antenna lobes
Antennas
Heating

Single-side-band heterodyne differential-phase reflectometry in QUEST

Idei, H., Dono, K., Wataya, Y., Nagata, K., Kawasaki, S., Zushi, H., Hanada, K., Sato, K. N., Nakamura, K., Sakamoto, M., Hasegawa, M., Higashizono, Y., Takase, Y., Maekawa, T., Mitarai, O., Kishimoto, Y., Nakashima, H. & Higashijima, A., Dec 31 2009, 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009. 5324785. (34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009).

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

Tokamak devices
Receiving antennas
Amplitude modulation
Launching
Diffraction
2007
1 Citation (Scopus)

Initial results of AM reflectometory on CPD

Idei, H., Kawasaki, S., Hanada, K., Zushi, H., Sato, K., Nakamura, K., Sakamoto, M., Hasegawa, M., Nakashima, H., Higashijima, A., Wataya, Y., Matsubara, S. & Kawano, S., Dec 1 2007, IRMMW-THz2007 - Conference Digest of the Joint 32nd International Conference on Infrared and Millimetre Waves, and 15th International Conference on Terahertz Electronics. p. 518-519 2 p. 4516610. (IRMMW-THz2007 - Conference Digest of the Joint 32nd International Conference on Infrared and Millimetre Waves, and 15th International Conference on Terahertz Electronics).

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

Reflectometers
Plasmas
Amplitude modulation
Beam plasma interactions
Switching frequency
2006

Current profile estimation using Hard X-ray measurement along the top and bottom identical line of sight on TRIAM-1M

Hanada, K., Sasaki, K., Hasegawa, M., Idei, H., Zushi, H., Nakamura, K., Sakamoto, M., Sato, K. N., Kawasaki, S., Nakashima, H. & Higashijima, A., Dec 1 2006, 33rd EPS Conference on Plasma Physics 2006, EPS 2006 - Europhysics Conference Abstracts. p. 1608-1611 4 p. (33rd EPS Conference on Plasma Physics 2006, EPS 2006; vol. 2).

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

line of sight
profiles
x rays
plasma currents
magnetic fields

Dynamics of recycling processes responding to the local particle and heat load perturbations on TRIAM-1M

Zushi, H., Bhattacharyay, R., Sakamoto, M., Nozaki, Y., Nakashima, K., Ogawa, M., Takaki, K., Hanada, K., Idei, H., Nakamura, K., Sasaki, K., Hirooka, Y., Nakashima, Y., Kado, S. & Shikama, T., Dec 1 2006, 33rd EPS Conference on Plasma Physics 2006, EPS 2006 - Europhysics Conference Abstracts. p. 1604-1607 4 p. (33rd EPS Conference on Plasma Physics 2006, EPS 2006; vol. 2).

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

recycling
efflux
gas transport
perturbation
heat

Soft X-ray measurement in IRE on the TST-2 spherical tokamak

Sasaki, K., Hanada, K., Sato, K. N., Zushi, H., Nakamura, K., Sakamoto, M., Idei, H., Hasegawa, M., Kawasaki, S., Nakashima, T., Higashijima, A., Takase, Y., Ejiri, A., Shiraiwa, S., Kasahara, H., Yamada, T. & Nishino, N., Dec 1 2006, 33rd EPS Conference on Plasma Physics 2006, EPS 2006 - Europhysics Conference Abstracts. p. 1640-1643 4 p. (33rd EPS Conference on Plasma Physics 2006, EPS 2006; vol. 3).

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

x rays
diodes
causes

Surface temperature dependence of hydrogen balmar and molybdenum neutral lines from the Mo limiter in TRIAM-1M

Nakashima, K., Zushi, H., Maezono, N., Sakamoto, M., Yoshida, N., Tokunaga, K., Hirooka, Y., Shikama, T., Kado, S., Nishino, N., Nakahima, Y., Hanada, K., Sasaki, K., Idei, H., Iyomasa, A., Kawasaki, S., Sato, K. N., Nakashima, H., Nakamura, K., Hasegawa, M. & 1 others, Higashijima, A., Dec 1 2006, 21st IEEE/NPS Symposium on Fusion Engineering, SOFE'05. 4019014. (Proceedings - Symposium on Fusion Engineering).

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

Limiters
Molybdenum
surface temperature
molybdenum
Hydrogen
2005

Impact of a movable limiter on the global wall recycling in TRIAM-1M

Sakamoto, M., Ogawa, M., Takaki, K., Zushi, H., Nakashima, K., Maezono, N., Sugata, T., Nakashima, Y., Higashizono, Y., Kubota, Y., Higashijima, A., Nakashima, H., Kawasaki, S., Iyomasa, A., Hasegawa, M., Idei, H., Hanada, K., Nakamura, K. & Sato, K. N., Dec 1 2005, 32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets - Europhysics Conference Abstracts. p. 1930-1933 4 p. (32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets - Europhysics Conference Abstracts; vol. 3).

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

recycling
sinks
hydrogen
pumping
chambers

Plasma current start-up by outboard PF coils in JT-60U and TST-2

Takase, Y., Ejiri, A., Hanada, K., Ide, S., Mitarai, O., Shiraiwa, S. & Ushigome, M., Sep 26 2005, RADIO FREQUENCY POWER IN PLASMAS: 16th Topical Conference on Radio Frequency Power in Plasmas. p. 365-368 4 p. (AIP Conference Proceedings; vol. 787).

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

field coils
plasma currents
ramps
induction
recharging
2004

Remote steering antenna system on the TRIAM-1M Tokamak

Idei, H., Hanada, K., Ohkubo, K., Hasegawa, M., Notake, T., Kubo, S., Shimozuma, T., Ito, S., Sato, K. N., Zushi, H., Nakamura, K., Sakamoto, M., Iyomasa, A., Kawasaki, S., Nakashima, H., Higashijima, A. & Nishi, S., Dec 1 2004, Conference Digest of the 2004 Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics. Thumm, M. & Wiesbeck, W. (eds.). p. 725-726 2 p. (Conference Digest of the 2004 Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics).

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

Antennas
Phase measurement
Cyclotrons
Heating
Electrons
1991

Electron cyclotron lower hybrid current drive and heating on the WT-3 tokamak

Terumichi, Y., Tanaka, S., Maekawa, T., Tanaka, H., Ide, S., Iida, M., Hanada, K., Minami, T., Yoshida, M., Fukino, T., Ogura, K., Nakamura, M., Fujimoto, T. & Suemitsu, H., Jan 1 1991, Proc 13 Int Conf Plasma Phys Controlled Nucl Fusion Res. Publ by IAEA, p. 777-782 6 p. (Proc 13 Int Conf Plasma Phys Controlled Nucl Fusion Res).

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

Cyclotrons
Heating
Electrons
Magnetohydrodynamics
Electric potential