核融合力学部門

研究成果 1979 2019

フィルター
記事
2019

28-GHz ECHCD system with beam focusing launcher on the QUEST spherical tokamak

Idei, H., Onchi, T., Kariya, T., Tsujimura, T. I., Kubo, S., Kobayashi, S., Sakaguchi, M., Imai, T., Hasegawa, M., Nakamura, K., Mishra, K., Fukuyama, M., Yunoki, M., Kojima, S., Watanabe, O., Kuroda, K., Hanada, K., Nagashima, Y., Ejiri, A., Matsumoto, N. および7人, Ono, M., Higashijima, A., Nagata, T., Shimabukoro, S., Takase, Y., Fukuyama, A. & Murakami, S., 1 1 2019, : : Fusion Engineering and Design.

研究成果: ジャーナルへの寄稿記事

Cyclotrons
Plasmas
Electrons
Electron cyclotron resonance
Test facilities

A 6 MW/m2 High Heat Flux Testing Facility of Irradiated Materials Using Infrared Plasma-Arc Lamps

Sabau, A. S., Tokunaga, K., Littleton, M. G., Kiggans, J. O., Schaich, C. R., Dinwiddie, R. B., Moore, D. T., Ueda, Y. & Katoh, Y., 10 3 2019, : : Fusion Science and Technology. 75, 7, p. 690-701 12 p.

研究成果: ジャーナルへの寄稿記事

Arc lamps
arc lamps
plasma jets
Heat flux
heat flux
1 引用 (Scopus)
plasma turbulence
method of moments
cylindrical plasmas
tomography
moments

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

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

研究成果: ジャーナルへの寄稿記事

公開
waveforms
templates
thresholds
uniqueness
clocks

Definition of the profile gain factor and its application for internal transport barrier analysis in torus plasmas

Lhd Experiment Group, 6 17 2019, : : Plasma Physics and Controlled Fusion. 61, 8, 085005.

研究成果: ジャーナルへの寄稿記事

Plasmas
Ions
profiles
Thermal diffusion
ion temperature

Densification and microstructure evolution of W-TiC-Y2O3 during spark plasma sintering

Zhou, Y. F., Zhao, Z. Y., Tan, X. Y., Luo, L. M., Xu, Y., Zan, X., Xu, Q., Tokunaga, K., Zhu, X. Y. & Wu, Y. C., 2 1 2019, : : International Journal of Refractory Metals and Hard Materials. 79, p. 95-101 7 p.

研究成果: ジャーナルへの寄稿記事

Spark plasma sintering
Densification
Microstructure
Tungsten
Sintering

Dynamics evaluation of hydrogen isotope behavior in tungsten simulating damage distribution

Nakata, M., Azuma, K., Togari, A., Zhou, Q., Zhao, M., Toyama, T., Hatano, Y., Yoshida, N., Watanabe, H., Shimada, M., Buchenauer, D. & Oya, Y., 9 1 2019, : : Fusion Engineering and Design. 146, p. 2096-2099 4 p.

研究成果: ジャーナルへの寄稿記事

Tungsten
Isotopes
Hydrogen
Ion implantation
Deuterium

Effect of annealing on the microstructure behavior of D+-irradiated W-2vol.%TiC composite prepared by wet-chemical method

Zhang, Y. X., Tan, X. Y., Zan, X., Luo, L. M., Xu, Y., Xu, Q., Tokunaga, K., Zhu, X. Y. & Wu, Y. C., 11 1 2019, : : Fusion Engineering and Design. 148, 111321.

研究成果: ジャーナルへの寄稿記事

Annealing
Microstructure
Hot rolling
Composite materials
Ion bombardment
1 引用 (Scopus)

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. および10人, Higashijima, A., Nagata, T., Shimabukuro, S., Takase, Y., Murakami, S., Gao, X., Liu, H., Qian, J., Raman, R. & Ono, M., 5 1 2019, : : Nuclear Materials and Energy. 19, p. 544-549 6 p.

研究成果: ジャーナルへの寄稿記事

公開
Hydrogen
hydrogen
Plasmas
Carrier concentration
Metals

Formation of spiral structures of turbulence driven by a strong rotation in magnetically cylindrical plasmas

Sasaki, M., Camenen, Y., Escarguel, A., Shigeru, I., Kasuya, N., Itoh, K. & Kobayashi, T., 4 1 2019, : : Physics of Plasmas. 26, 4, 0423051.

研究成果: ジャーナルへの寄稿記事

cylindrical plasmas
turbulence
vorticity
oscillations
cycles

Fourier-rectangular function analysis for cylindrical plasma images

Yamasaki, K., Fujisawa, A., Nagashima, Y., Moon, C., Inagaki, S., Kasuya, N., Kosuga, Y., Sasaki, M. & Yamada, T., 7 28 2019, : : Journal of Applied Physics. 126, 4, 043304.

研究成果: ジャーナルへの寄稿記事

cylindrical plasmas
Fourier series
Plasmas
Imaging techniques
Tomography
1 引用 (Scopus)

Frequency and plasma condition dependent spatial structure of low frequency global potential oscillations in the TJ-II stellarator

Kobayashi, T., Losada, U., Liu, B., Estrada, T., Van Milligen, B. P., Gerrú, R., Sasaki, M. & Hidalgo, C., 3 5 2019, : : Nuclear Fusion. 59, 4, 044006.

研究成果: ジャーナルへの寄稿記事

stellarators
low frequencies
oscillations
heating
electric fields

HFS injection of X-mode for EBW conversion in QUEST

Elserafy, H., Hanada, K., Kuroda, K., Idei, H., Yoneda, R., Huang, C., Kojima, S., Hasegawa, M., Nagashima, Y., Onchi, T., Ikezoe, R., Higashijima, A., Nagata, T., Kawasaki, S., Shimabukuro, S., Bertelli, N. & Ono, M., 1 1 2019, : : Plasma and Fusion Research. 14, 1, 1205038.

研究成果: ジャーナルへの寄稿記事

injection
electrons
plasma heating
plasma currents
vessels

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., 9 1 2019, : : Fusion Engineering and Design. 146, p. 2567-2570 4 p.

研究成果: ジャーナルへの寄稿記事

Cyclotrons
Insulated gate bipolar transistors (IGBT)
Heating
Electrons
Electric potential
1 引用 (Scopus)

Interpreting observations of ion cyclotron emission from large helical device plasmas with beam-injected ion populations

Reman, B. C. G., Dendy, R. O., Akiyama, T., Chapman, S. C., Cook, J. W. S., Igami, H., Shigeru, I., Saito, K. & Yun, G. S., 7 19 2019, : : Nuclear Fusion. 59, 9, 096013.

研究成果: ジャーナルへの寄稿記事

公開
cyclotrons
ion beams
ions
beam injection
neutral beams

Ion temperature measurement by laser-induced fluorescence spectroscopy in panta

Arakawa, H., Shigeru, I., 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., 10 1 2019, : : IEEJ Transactions on Electrical and Electronic Engineering. 14, 10, p. 1450-1454 5 p.

研究成果: ジャーナルへの寄稿記事

Fluorescence spectroscopy
Temperature measurement
Plasma turbulence
Helicons
Lasers

Observation of a beam-driven low-frequency mode in Heliotron J

Zang, L. G., Yamamoto, S., Spong, D. A., Nagasaki, K., Ohshima, S., Kobayashi, S., Minami, T., Lu, X. X., Nishino, N., Kado, S., Adulsiriswad, P., Okada, H., Kenmochi, N., Shigeru, I., Zhu, J. X., Weir, G. M., Mizuuchi, T., Konoshima, S., Ishizawa, A., Yu, D. L. および8人, Shi, Z. B., Liu, Y., Yan, L. W., Li, J. Q., Yang, Q. W., Xu, M., Duan, X. R. & Liu, Y., 3 14 2019, : : Nuclear Fusion. 59, 5, 056001.

研究成果: ジャーナルへの寄稿記事

low frequencies
electromagnetism
ions
stellarators
neutral beams

Observations of radially elongated particle flux induced by streamer in a linear magnetized plasma

Kin, F., fujisawa, A., Itoh, K., Kosuga, Y., Sasaki, M., Shigeru, I., Nagashima, Y., Yamada, T., Kasuya, N., Yamasaki, K., Hasamada, K., Zhang, B. Y., Kawachi, Y., Arakawa, H., Kobayashi, T. & Itoh, S. I., 4 1 2019, : : Physics of Plasmas. 26, 4, 042306.

研究成果: ジャーナルへの寄稿記事

flux (rate)
cylindrical plasmas
normal density functions
ballistics
turbulence

Optical spectroscopy study of modifications induced in cerium dioxide by electron and ion irradiations

Costantini, J. M., Gutierrez, G., Watanabe, H., Yasuda, K., Takaki, S., Lelong, G., Guillaumet, M. & Weber, W. J., 7 18 2019, : : Philosophical Magazine. 99, 14, p. 1695-1714 20 p.

研究成果: ジャーナルへの寄稿記事

electron irradiation
cerium
ion irradiation
dioxides
refractivity

Parallel flow driven instability due to toroidal return flow in high-confinement mode plasmas

Sasaki, M., Itoh, K., Kosuga, Y., Dong, J. Q., Shigeru, I., Kobayashi, T., Cheng, J., Zhao, K. J. & Itoh, S. I., 5 20 2019, : : Nuclear Fusion. 59, 6, 066039.

研究成果: ジャーナルへの寄稿記事

parallel flow
destabilization
shear flow
stabilization
turbulence

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., 9 1 2019, : : Fusion Engineering and Design. 146, p. 2628-2631 4 p.

研究成果: ジャーナルへの寄稿記事

Plasmas
Current density
Fluxes

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

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

研究成果: ジャーナルへの寄稿記事

公開
vortices
solitary waves
life (durability)
flux (rate)
damping

Spatial structure of low-frequency fluctuations throughout the transition of poloidal flow velocity in edge plasmas of LHD

Moon, C., Kobayashi, T., Ida, K., Tokuzawa, T., Hidalgo, C., Yoshinuma, M., Ogawa, K., Itoh, K. & Fujisawa, A., 9 1 2019, : : Physics of Plasmas. 26, 9, 092302.

研究成果: ジャーナルへの寄稿記事

公開
flow velocity
low frequencies
reflectometers
propagation velocity
proximity

Stable structure of hydrogen atoms trapped in tungsten divacancy

Ohsawa, K., Toyama, T., Hatano, Y., Yamaguchi, M. & Watanabe, H., 12 15 2019, : : Journal of Nuclear Materials. 527, 151825.

研究成果: ジャーナルへの寄稿記事

Tungsten
Binding energy
Hydrogen
hydrogen atoms
tungsten
1 引用 (Scopus)

Summary of the 8th Asia-Pacific Transport Working Group (APTWG) Meeting

Shi, Z. B., Cheng, J., Xu, Y. H., Tokuzawa, T., Qiu, Z. Y., Sasaki, M., Zhong, W. L., Ida, K., Wang, Z. X., Zhang, T., Kim, J., Kwon, J. M., Kobayashi, T. & Lee, W. C., 1 17 2019, : : Nuclear Fusion. 59, 4, 047001.

研究成果: ジャーナルへの寄稿記事

turbulence
energetic particles
particle energy
China
topology
2018

Density dependence of transient electron thermal transport property in LHD

Experiment Group, L. H. D., Kobayashi, T., Ida, K., Tsujimura, T., Shigeru, I., Tokuzawa, T., Tsuchiya, H., Tamura, N., Igami, H., Yoshimura, Y., Itoh, S. I. & Itoh, K., 10 29 2018, : : Nuclear Fusion. 58, 12, 126031.

研究成果: ジャーナルへの寄稿記事

transport properties
hysteresis
electrons
heating
estimates
1 引用 (Scopus)

Density profile measurement with a heavy ion beam probe in a toroidal plasma of the compact helical system

Shimizu, A., fujisawa, A., Ohshima, S., Nakano, H., Minami, T., Isobe, M., Okamura, S. & Matsuoka, K., 11 1 2018, : : Review of Scientific Instruments. 89, 11, 113507.

研究成果: ジャーナルへの寄稿記事

toroidal plasmas
electron density profiles
Heavy ions
Ion beams
Carrier concentration
1 引用 (Scopus)

Determination of spatiotemporal structure of fluctuations by statistical averaging method

Kawachi, Y., Shigeru, I., Tomita, K., Yamasaki, K., Kin, F., Kosuga, Y., Sasaki, M., Nagashima, Y., Kasuya, N., Hasamada, K., Zhang, B. & fujisawa, A., 1 1 2018, : : Plasma and Fusion Research. 13, 3401105.

研究成果: ジャーナルへの寄稿記事

公開
wave fronts
pattern recognition
profiles
3 引用 (Scopus)

Effect of heating temperature on tritium retention in stainless steel type 316 L

Matsuyama, M., Zushi, H., Tokunaga, K., Kuzmin, A. & Hanada, K., 8 1 2018, : : Nuclear Materials and Energy. 16, p. 52-59 8 p.

研究成果: ジャーナルへの寄稿記事

Tritium
Stainless Steel
tritium
stainless steels
Stainless steel
2 引用 (Scopus)

Effect of laser beam thermal shock on the helium ion irradiation damage behavior of W-TiC-Y2O3 composites

Xu, MY. Y., Luo, LM. M., Xu, Y., Zan, X., Xu, Q., Tokunaga, K., Zhu, XY. Y. & Wu, YC. C., 10 1 2018, : : Journal of Nuclear Materials. 509, p. 198-203 6 p.

研究成果: ジャーナルへの寄稿記事

Helium
thermal shock
helium ions
Thermal shock
Ion bombardment

Effect of magnetic shear on edge turbulence in SOL-like open field line configuration in QUEST

Banerjee, S., Zushi, H., Nishino, N., Hanada, K., Idei, H., Nakamura, K., Hasegawa, M., fujisawa, A., Nagashima, Y., Mishra, K., Tashima, S., Onchi, T., Kuzmin, A. & Matsuoka, K., 6 28 2018, : : Plasma Physics and Controlled Fusion. 60, 8, 085014.

研究成果: ジャーナルへの寄稿記事

Turbulence
turbulence
Magnetic fields
shear
Plasmas

Effects of an alloying element on a c-component loop formation and precipitate resolution in Zr alloys during ion irradiation

Watanabe, H., Takahashi, K., Yasunaga, K., Wang, Y., Aono, Y., Maruno, Y. & Hashizume, K., 10 3 2018, : : journal of nuclear science and technology. 55, 10, p. 1212-1224 13 p.

研究成果: ジャーナルへの寄稿記事

Alloying elements
Ion bombardment
ion irradiation
Zircaloy 2 (trademark)
alloying

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., 1 1 2018, : : Plasma and Fusion Research. 13, 3403040.

研究成果: ジャーナルへの寄稿記事

公開
signal measurement
energetic particles
heavy ions
ion beams
acoustics
5 引用 (Scopus)

Extraction of nonlinear waveform in turbulent plasma

Kin, F., Itoh, K., fujisawa, A., Kosuga, Y., Sasaki, M., Yamada, T., Shigeru, I., Itoh, S., Kobayashi, T., Nagashima, Y., Kasuya, N., Arakawa, H., Yamasaki, K. & Hasamada, K., 6 1 2018, : : Physics of Plasmas. 25, 6, 062304.

研究成果: ジャーナルへの寄稿記事

waveforms
envelopes
harmonics
cylindrical plasmas
solitary waves

Fatigue pre-cracking and fracture toughness in polycrystalline tungsten and molybdenum

Taguchi, K., Nakadate, K., Matsuo, S., Tokunaga, K. & Kurishita, H., 1 1 2018, : : Journal of Nuclear Materials. 498, p. 445-457 13 p.

研究成果: ジャーナルへの寄稿記事

Tungsten
Molybdenum
toughness
fracture strength
molybdenum

Global mode analysis of ion-temperature-gradient instabilities using the gyro-fluid model in linear devices

Ohno, T., Kasuya, N., Sasaki, M. & Yagi, M., 1 1 2018, : : Plasma and Fusion Research. 13, 1401081.

研究成果: ジャーナルへの寄稿記事

公開
ion temperature
temperature gradients
fluids
destabilization
boundary conditions

Heat loading behavior and thermomechanical analyses on plasma spray tungsten coated reduced-activation ferritic/martensitic steel

Tokunaga, K., Hotta, T., Araki, K., Kurumada, A., Tokitani, M., Masuzaki, S., Ezato, K., Suzuki, S., Enoeda, M., Akiba, M., Hasegawa, M. & Nakamura, K., 11 1 2018, : : Fusion Engineering and Design. 136, p. 1624-1628 5 p.

研究成果: ジャーナルへの寄稿記事

Martensitic steel
Tungsten
Plasma spraying
Ferritic steel
Chemical activation
1 引用 (Scopus)

Helium irradiation behavior of tungsten-niobium alloys under different ion energies

Xu, M. Y., Luo, L. M., Zhou, Y. F., Zan, X., Xu, Y., Xu, Q., Tokunaga, K., Zhu, X. Y. & Wu, Y. C., 7 1 2018, : : Fusion Engineering and Design. 132, p. 7-12 6 p.

研究成果: ジャーナルへの寄稿記事

Niobium alloys
Tungsten alloys
Helium
Irradiation
Ions
3 引用 (Scopus)

Initial results from solenoid-free plasma start-up using Transient CHI on QUEST

Kuroda, K., Raman, R., Hanada, K., Hasegawa, M., Onchi, T., Ono, M., Nelson, B. A., Jarboe, T. R., Nagata, M., Mitarai, O., Nakamura, K., Idei, H., Rogers, J., Kawasaki, S., Nagata, T., Kuzmin, A., Kojima, S., Huang, C., Watanabe, O., Higashijima, A. および3人, Takase, Y., Fukuyama, A. & Murakami, S., 9 14 2018, : : Plasma Physics and Controlled Fusion. 60, 11, 115001.

研究成果: ジャーナルへの寄稿記事

Solenoids
solenoids
injection
Plasmas
Electrodes

Microstructure and peeling behavior of MOCVD processed oxide insulator coating before and after ion beam irradiation

Hishinuma, Y., Tanaka, M., Tanaka, T., Matsuda, K., Watanabe, H. & Muroga, T., 8 1 2018, : : Nuclear Materials and Energy. 16, p. 123-127 5 p.

研究成果: ジャーナルへの寄稿記事

peeling
Peeling
Bond strength (materials)
Metallorganic chemical vapor deposition
Oxides

Microwave frequency comb Doppler reflectometer applying fast digital data acquisition system in LHD

Tokuzawa, T., Tsuchiya, H., Tsujimura, T., Emoto, M., Nakanishi, H., Shigeru, I., Ida, K., Yamada, H., Ejiri, A., Watanabe, K. Y., Oguri, K., Akiyama, T., Tanaka, K. & Yamada, I., 10 1 2018, : : Review of Scientific Instruments. 89, 10, 10H118.

研究成果: ジャーナルへの寄稿記事

digital data
reflectometers
Reflectometers
Microwave frequencies
microwave frequencies
2 引用 (Scopus)

Modification of plasma control system and hot-wall temperature control system for long-duration plasma sustainment in QUEST

Hasegawa, M., Nakamura, K., Hanada, K., Kawasaki, S., Kuzmin, A., Idei, H., Tokunaga, K., Nagashima, Y., Onchi, T., Kuroda, K., Watanabe, O., Higashijima, A. & Nagata, T., 4 1 2018, : : Fusion Engineering and Design. 129, p. 202-206 5 p.

研究成果: ジャーナルへの寄稿記事

Temperature control
Plasmas
Control systems
Facings
Cooling systems

Numerical diagnostics of fluctuation spectrum in 3D magnetic configurations

Kasuya, N., Nunami, M., Tanaka, K. & Yagi, M., 8 30 2018, : : Nuclear Fusion. 58, 10, 106033.

研究成果: ジャーナルへの寄稿記事

configurations
ion temperature
temperature gradients
spatial resolution
phase contrast
1 引用 (Scopus)
cylindrical plasmas
inhomogeneity
damping
shape functions
magnetohydrodynamic flow
3 引用 (Scopus)
plasma turbulence
toroidal plasmas
broken symmetry
turbulence
2 引用 (Scopus)

Propagation direction of geodesic acoustic modes driven by drift wave turbulence

Sasaki, M., Itoh, K., Kobayashi, T., Kasuya, N., fujisawa, A. & Itoh, S., 10 3 2018, : : Nuclear Fusion. 58, 11, 112005.

研究成果: ジャーナルへの寄稿記事

turbulence
propagation
acoustics
standing waves
kinetic equations
7 引用 (Scopus)

Quantification of Turbulent Driving Forces for the Geodesic Acoustic Mode in the JFT-2M Tokamak

Kobayashi, T., Sasaki, M., Ido, T., Kamiya, K., Miura, Y., Nagashima, Y., Ida, K., Shigeru, I., fujisawa, A., Itoh, S. & Itoh, K., 1 26 2018, : : Physical Review Letters. 120, 4, 045002.

研究成果: ジャーナルへの寄稿記事

acoustics
Reynolds stress
shearing
kinetic energy
damping
2 引用 (Scopus)

Role of density modulation in driving nonlinear streamer flows in drift wave turbulence

Kosuga, Y. & Hasamada, K., 10 1 2018, : : Physics of Plasmas. 25, 10, 100701.

研究成果: ジャーナルへの寄稿記事

turbulence
modulation
Reynolds stress
shearing
frequency modulation
9 引用 (Scopus)

Spatio-temporal dynamics of turbulence trapped in geodesic acoustic modes

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

研究成果: ジャーナルへの寄稿記事

turbulence
acoustics
trapping
curvature
velocity distribution
1 引用 (Scopus)

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., 1 1 2018, : : Plasma and Fusion Research. 13, 3402087.

研究成果: ジャーナルへの寄稿記事

公開
electron cyclotron resonance
flow velocity
impurities
magnetic fields
ions