Research Output 1979 2019

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Conference article
2017

2D turbulence structure observed by a fast framing camera system in linear magnetized device PANTA

Ohdachi, S., Shigeru, I., Kobayashi, T. & Goto, M., Apr 19 2017, In : Journal of Physics: Conference Series. 823, 1, 012009.

Research output: Contribution to journalConference article

framing cameras
turbulence
high speed cameras
expansion
2015
1 Citation (Scopus)

High βp plasma formation using off-axis ECCD in Ohmic heated plasma in the spherical tokamak QUEST

QUEST Team, Jan 1 2015, In : EPJ Web of Conferences. 87, 02012.

Research output: Contribution to journalConference article

low currents
configurations
encounters
harmonics

Initial data of digital correlation ECE with a Giga Hertz sampling digitizer

Tsuchiya, H., Shigeru, I., Tokuzawa, T. & Nagayama, Y., Mar 12 2015, In : EPJ Web of Conferences. 87, 03010.

Research output: Contribution to journalConference article

analog to digital converters
sampling
intermediate frequencies
temporal resolution
waveforms
3 Citations (Scopus)

The effect of platinum-coatings on hydrogen- and water-absorption and desorption characteristics of lithium zirconate

Tsuchiya, B., Bandow, S., Nagata, S., Saito, K., Tokunaga, K. & Morita, K., Jan 1 2015, In : Physics Procedia. 66, p. 287-291 5 p.

Research output: Contribution to journalConference article

platinum
lithium
desorption
coatings
hydrogen
2014
35 Citations (Scopus)

Current status of nanostructured tungsten-based materials development

Kurishita, H., Matsuo, S., Arakawa, H., Sakamoto, T., Kobayashi, S., Nakai, K., Okano, H., Watanabe, H., Yoshida, N., Torikai, Y., Hatano, Y., Takida, T., Kato, M., Ikegaya, A., Ueda, Y., Hatakeyama, M. & Shikama, T., Jan 1 2014, In : Physica Scripta. T159, 014032.

Research output: Contribution to journalConference article

Irradiation
tungsten
Neutron
High Energy
neutron irradiation
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

plasma currents
recycling
plasma heating
controllability
conditioning
2011

High-resolution SHARAQ spectrometer at RI beam factory

Uesaka, T., Michimasa, S., Ota, S., Saito, A., Nakanishi, K., Sasamoto, Y., Miki, K., Noji, S., Tokieda, H., Miya, H., Kawase, S., Shimoura, S., Shimizu, Y., Sakai, H., Yako, K., Itoh, S., Kawabata, T., Yanagisawa, Y., Ohnishi, T., Takeda, H. & 10 othersKameda, D., Kubo, T., Sasano, M., Baba, H., Itahashi, K., Berg, G. P. A., Bazin, D., Roussel-Chomaz, P., Shimbara, Y. & Nagashima, M., Jan 1 2011, In : Journal of Physics: Conference Series. 312, SECTION 5, 052028.

Research output: Contribution to journalConference article

industrial plants
spectrometers
high resolution
chambers
momentum
2009
6 Citations (Scopus)

Stress function for dislocation loops in anisotropic crystals

Ohsawa, K., Yagi, M., Koizumi, H. & Kuramoto, E., Dec 1 2009, In : IOP Conference Series: Materials Science and Engineering. 3, 012027.

Research output: Contribution to journalConference article

Dislocations (crystals)
Crystals
Poisson equation
Elasticity
6 Citations (Scopus)

Surface modification of tungsten mirrors due to low-energy helium plasma irradiation in the compact PWI simulator APSEDAS

Sakamoto, M., Miyazaki, T., Higashizono, Y., Ogawa, K., Ozaki, K., Ashikawa, N., Tokitani, M., Shoji, T., Masuzaki, S., Tokunaga, K., Ohya, K., Sagara, A., Yoshida, N. & Sato, K. N., Dec 1 2009, In : Physica Scripta T. T138, 14043.

Research output: Contribution to journalConference article

Surface Modification
helium plasma
Reflectivity
Irradiation
simulators

This school

Itoh, S., Apr 23 2009, In : AIP Conference Proceedings. 1095, p. 17-20 4 p.

Research output: Contribution to journalConference article

school

Welcome and introductory words

Itoh, S., Shigeru, I., Shindo, M., Yagi, M., Kajiyama, T., Yamamoto, H., Bertin, D., Armand, J. L., Motojima, O., Benkadda, S., Aso, W. & Arikawa, S., Apr 23 2009, In : AIP Conference Proceedings. 1095, p. 3-13 11 p.

Research output: Contribution to journalConference article

2006
27 Citations (Scopus)

Behavior of actively cooled mock-ups with plasma sprayed tungsten coating under high heat flux conditions

Tokunaga, K., Kubota, Y., Noda, N., Imamura, Y., Kurumada, A., Yoshida, N., Sogabe, T., Kato, T. & Schedler, B., Feb 1 2006, In : Fusion Engineering and Design. 81 A, 1-4, p. 133-138 6 p.

Research output: Contribution to journalConference article

Mockups
Tungsten
Plasma spraying
Heat flux
Plasmas
1 Citation (Scopus)

Continuous and real-time data acquisition system for superconducting tokamaks HT-7 and TRIAM-1M

Wang, F., Luo, J. R., Nakamura, K., Sato, K. N., Hanada, K., Sakamoto, M., Idei, H., Kawasaki, S. & Nakashima, H., Feb 1 2006, In : Fusion Engineering and Design. 81, 8-14 PART B, p. 1621-1626 6 p.

Research output: Contribution to journalConference article

Data acquisition
Hard disk storage
Plasmas
Fusion reactors
Servers
4 Citations (Scopus)

Effect of low energy helium irradiation on mechanical properties of 304 stainless steel

Kawakami, T., Tokunaga, K. & Yoshida, N., Feb 1 2006, In : Fusion Engineering and Design. 81 A, 1-4, p. 335-340 6 p.

Research output: Contribution to journalConference article

Helium
Stainless Steel
Stainless steel
Irradiation
Mechanical properties
1 Citation (Scopus)

Engineering design and control scenario for steady-state high-beta operation in National Centralized Tokamak

Tsuchiya, K., Akiba, M., Azechi, H., Fujii, T., Fujita, T., Fujiwara, M., Hamamatsu, K., Hashizume, H., Hayashi, N., Horiike, H., Hosogane, N., Ichimura, M., Ida, K., Ikeda, Y., Imai, T., Inoue, N., Ishida, S., Itoh, S., Kamada, Y., Kawashima, H. & 36 othersKikuchi, M., Kimura, A., Kizu, K., Kubo, H., Kudo, Y., Kurihara, K., Kurita, G., Kuriyama, M., Masaki, K., Matsukawa, M., Matsuoka, M., Miura, Y., Miura, Y. M., Miya, N., Morioka, A., Nakamura, K., Ninomiya, H., Nishimura, A., Okano, K., Okuno, K., Sagara, A., Sakamoto, M., Sakurai, S., Sato, K., Shimada, R., Shimizu, A., Suzuki, T., Takahashi, H., Takase, Y., Takechi, M., Tamai, H., Tanaka, S., Tsutsui, H., Uesugi, Y., Yatsu, K. & Yoshida, N., Feb 1 2006, In : Fusion Engineering and Design. 81, 8-14 PART B, p. 1599-1605 7 p.

Research output: Contribution to journalConference article

Plasmas
Boron
Shielding
Strength of materials
Aspect ratio
1 Citation (Scopus)

Magnetic sensorless control experiment without drift problem on HT-7

Nakamura, K., Luo, J. R., Wang, H. Z., Ji, Z. S., Wang, H., Wang, F., Qi, N., Sato, K. N., Hanada, K., Sakamoto, M., Idei, H., Hasegawa, M., Iyomasa, A., Kawasaki, S., Nakashima, H. & Higashijima, A., Feb 1 2006, In : Fusion Engineering and Design. 81, 8-14 PART B, p. 1607-1612 6 p.

Research output: Contribution to journalConference article

Magnetic sensors
Plasmas
Thyristors
Experiments
Fluxes
2004
6 Citations (Scopus)

Computer simulation of the dynamical and thermally activated motion of interstitial clusters in Fe

Kuramoto, E., Ohsawa, K., Imai, J., Obata, K. & Tsutsumi, T., Aug 1 2004, In : Journal of Nuclear Materials. 329-333, 1-3 PART B, p. 1223-1227 5 p.

Research output: Contribution to journalConference article

interstitials
computerized simulation
Computer simulation
Direction compound
bundles
19 Citations (Scopus)

Desorption of helium from austenitic stainless steel heavily bombarded by low energy He ions

Tokitani, M., Miyamoto, M., Tokunaga, K., Iwakiri, H., Fujiwara, T. & Yoshida, N., Aug 1 2004, In : Journal of Nuclear Materials. 329-333, 1-3 PART A, p. 761-765 5 p.

Research output: Contribution to journalConference article

Helium
austenitic stainless steels
Austenitic stainless steel
Desorption
desorption
33 Citations (Scopus)

High heat flux properties of pure tungsten and plasma sprayed tungsten coatings

Liu, X., Tamura, S., Tokunaga, K., Yoshida, N., Noda, N., Yang, L. & Xu, Z., Aug 1 2004, In : Journal of Nuclear Materials. 329-333, 1-3 PART A, p. 687-691 5 p.

Research output: Contribution to journalConference article

Tungsten
Heat flux
heat flux
tungsten
Plasmas
22 Citations (Scopus)

High-temperature properties of joint interface of VPS-tungsten coated CFC

Tamura, S., Liu, X., Tokunaga, K., Tsunekawa, Y., Okumiya, M., Noda, N. & Yoshida, N., Aug 1 2004, In : Journal of Nuclear Materials. 329-333, 1-3 PART A, p. 711-716 6 p.

Research output: Contribution to journalConference article

High temperature properties
Tungsten
fiber composites
carbon fibers
Carbon fibers
18 Citations (Scopus)

Impact properties of NIFS-HEAT-2 (V-4Cr-4Ti) after YAG laser welding and neutron irradiation at 563 K

Nagasaka, T., Heo, N. J., Muroga, T., Nishimura, A., Watanabe, H., Narui, M. & Shinozaki, K., Aug 1 2004, In : Journal of Nuclear Materials. 329-333, 1-3 PART B, p. 1539-1543 5 p.

Research output: Contribution to journalConference article

laser welding
Neutron irradiation
Laser beam welding
neutron irradiation
YAG lasers
13 Citations (Scopus)

Microscopic damage of materials exposed to glow discharge cleanings in LHD

Miyamoto, M., Tokitani, M., Tokunaga, K., Fujiwara, T., Yoshida, N., Masuzaki, S. & Komori, A., Aug 1 2004, In : Journal of Nuclear Materials. 329-333, 1-3 PART A, p. 742-746 5 p.

Research output: Contribution to journalConference article

Helium
Glow discharges
glow discharges
cleaning
Cleaning
13 Citations (Scopus)

Plasma material interaction studies on low activation materials used for plasma facing or blanket component

Hino, T., Hirohata, Y., Yamauchi, Y., Hashiba, M., Kohyama, A., Katoh, Y., Lee, Y., Jinushi, T., Akiba, M., Nakamura, K., Yoshida, H., Sengoku, S., Tsuzuki, K., Kusama, Y., Yamaguchi, K. & Muroga, T., Aug 1 2004, In : Journal of Nuclear Materials. 329-333, 1-3 PART A, p. 673-677 5 p.

Research output: Contribution to journalConference article

Helium
blankets
Deuterium
Stainless Steel
Beam plasma interactions
48 Citations (Scopus)

Synergistic effects of high heat loading and helium irradiation of tungsten

Tokunaga, K., Tamura, S., Yoshida, N., Ezato, K., Taniguchi, M., Sato, K., Suzuki, S. & Akiba, M., Aug 1 2004, In : Journal of Nuclear Materials. 329-333, 1-3 PART A, p. 757-760 4 p.

Research output: Contribution to journalConference article

Helium
Tungsten
tungsten
helium
Irradiation
11 Citations (Scopus)

The precipitation behavior of ion irradiated V-4Cr-4Ti alloys at various oxygen and nitrogen levels

Hatakeyama, M., Watanabe, H., Muroga, T. & Yoshida, N., Aug 1 2004, In : Journal of Nuclear Materials. 329-333, 1-3 PART A, p. 420-424 5 p.

Research output: Contribution to journalConference article

Precipitates
precipitates
Nitrogen
Ions
Oxygen
5 Citations (Scopus)

The study of temperature variation during HFIR irradiation on vanadium

Watanabe, H., Muroga, T. & Yoshida, N., Aug 1 2004, In : Journal of Nuclear Materials. 329-333, 1-3 PART A, p. 425-428 4 p.

Research output: Contribution to journalConference article

high flux isotope reactors
Vanadium
Isotopes
vanadium
Irradiation
2003
10 Citations (Scopus)

Damage process of resolidified part on CVD-W coated molybdenum under high heat load

Tamura, S., Tokunaga, K. & Yoshida, N., Mar 1 2003, In : Journal of Nuclear Materials. 313-316, SUPPL., p. 250-254 5 p.

Research output: Contribution to journalConference article

Molybdenum
Thermal load
molybdenum
Chemical vapor deposition
vapor deposition
5 Citations (Scopus)

Hydrogen accumulation in the helium implanted surface of Mo single crystals

Nagata, S., Tokunaga, K., Tsuchiya, B., Ohtsu, N., Sugawara, T. & Shikama, T., Aug 11 2003, In : Journal of Alloys and Compounds. 356-357, p. 326-329 4 p.

Research output: Contribution to journalConference article

Helium
Hydrogen
Single crystals
Deuterium
Contamination
7 Citations (Scopus)

Hydrogen and deuterium uptake in helium implanted layer of Mo and W

Nagata, S., Tsuchiya, B., Ohtsu, N., Sugawara, T., Shikama, T., Tokunaga, K., Takenaka, M. & Kuramoto, E., Mar 1 2003, In : Journal of Nuclear Materials. 313-316, SUPPL., p. 279-283 5 p.

Research output: Contribution to journalConference article

Helium
Deuterium
deuterium
Hydrogen
helium
8 Citations (Scopus)

Material properties of co-deposition formed on plasma facing materials in all-metal machine TRIAM-1M

Miyamoto, M., Tokunaga, K., Fujiwara, T., Yoshida, N., Morimoto, Y., Sugiyama, T. & Okuno, K., Mar 1 2003, In : Journal of Nuclear Materials. 313-316, SUPPL., p. 82-86 5 p.

Research output: Contribution to journalConference article

Materials properties
Metals
Plasmas
metals
Hydrogen
6 Citations (Scopus)

Measurements of density fluctuations in reflectometry of cylindrical plasmas

Bruskin, L. G., Oyama, N., Shinohara, K., Miura, Y., Kogi, Y., Mase, A., Hasegawa, M. & Hanada, K., Mar 1 2003, In : Review of Scientific Instruments. 74, 3 II, p. 1473-1476 4 p.

Research output: Contribution to journalConference article

cylindrical plasmas
Plasmas
Analytical models
resources
curvature
6 Citations (Scopus)

Static and dynamic properties of wall recycling in TRIAM-1M

Sakamoto, M., Nakashima, H., Kawasaki, S., Iyomasa, A., Kulkarni, S. V., Hasegawa, M., Jotaki, E., Zushi, H., Nakamura, K., Hanada, K. & Itoh, S., Mar 1 2003, In : Journal of Nuclear Materials. 313-316, SUPPL., p. 519-523 5 p.

Research output: Contribution to journalConference article

recycling
dynamic characteristics
Recycling
Gases
gases
31 Citations (Scopus)

Surface morphology and helium retention on tungsten exposed to low energy and high flux helium plasma

Tokunaga, K., Doerner, R. P., Seraydarian, R., Noda, N., Kubota, Y., Yoshida, N., Sogabe, T., Kato, T. & Schedler, B., Mar 1 2003, In : Journal of Nuclear Materials. 313-316, SUPPL., p. 92-96 5 p.

Research output: Contribution to journalConference article

helium plasma
Helium
Tungsten
Surface morphology
tungsten
5 Citations (Scopus)

Two-dimensional diagnostics of edge and divertor region of toroidal helical plasmas using a lithium beam probe

Nakamura, K., Iguchi, H., Ueda, M., Morisaki, T., Isobe, M., Ida, K., Takahashi, C., Okamura, S. & Matsuoka, K., Mar 1 2003, In : Journal of Nuclear Materials. 313-316, SUPPL., p. 725-728 4 p.

Research output: Contribution to journalConference article

Lithium
lithium
Plasmas
probes
Plasma confinement
2002
7 Citations (Scopus)

Transient response of transport at transport barrier formation

Itoh, K. & Itoh, S. I., Jan 1 2002, In : Plasma Physics and Controlled Fusion. 44, 5 A

Research output: Contribution to journalConference article

transient response
Transient analysis
Plasmas
toroidal plasmas
Thermal diffusivity
5 Citations (Scopus)

Transition probability to turbulent transport regime

Kawasaki, M., Furuya, A., Yagi, M., Itoh, K. & Itoh, S., Jan 1 2002, In : Plasma Physics and Controlled Fusion. 44, 5 A

Research output: Contribution to journalConference article

Thermal noise
transition probabilities
thermal noise
Hysteresis
Plasmas
2001
34 Citations (Scopus)

Ion Cyclotron range of frequency heating experiments on the large helical device and high energy ion behavior

Kumazawa, R., Mutoh, T., Seki, T., Watari, T., Saito, K., Torii, Y., Shimpo, F., Nomura, G., Yokota, M., Kato, A., Hartmann, D. A., Zhao, Y., Fukuyama, A., Okada, H., Ohkubo, K., Sato, M., Kubo, S., Shimozuma, T., Idei, H., Yoshimura, Y. & 69 othersNotake, T., Takita, Y., Kobayashi, S., Itoh, S., Mizuno, Y., Kaneko, O., Takeiri, Y., Oka, Y., Tsumori, K., Osakabe, M., Ikeda, K., Yamamoto, S., Kawamoto, T., Asano, E., Ohyabu, N., Kawahata, K., Komori, A., Yamada, H., Akaishi, K., Ashikawa, N., Emoto, M., Funaba, H., Goto, M., Ida, K., Shigeru, I., Inoue, N., Isobe, M., Krasilnikov, A., Masuzaki, S., Minami, T., Miyazawa, J., Morisaki, T., Morita, S., Murakami, S., Muto, S., Nakamura, Y., Nagayama, Y., Nakanishi, H., Narihara, K., Narushima, Y., Nishimura, K., Noda, N., Kobuchi, T., Ohdachi, S., Ozaki, T., Peterson, B. J., Sagara, A., Sakakibara, S., Sakamoto, R., Sasao, H., Sasao, M., Sato, K., Shoji, M., Suzuki, H., Tanaka, K., Toi, K., Tokuzawa, T., Yamada, I., Yamaguchi, S., Yokoyama, M., Watanabe, K. Y., Watanabe, T., Matsuoka, K., Itoh, K., Sudo, S., Yamazaki, K., Hamada, Y., Motojima, O. & Fujiwara, M., May 1 2001, In : Physics of Plasmas. 8, 5 II, p. 2139-2147 9 p.

Research output: Contribution to journalConference article

cyclotrons
heating
ions
beam injection
neutral beams
2000
17 Citations (Scopus)

High heat flux test of actively cooled tungsten-coated carbon divertor mock-ups

Tokunaga, K., Yoshida, N., Kubota, Y., Noda, N., Imamura, Y., Oku, T., Kurumada, A., Sogabe, T., Kato, T. & Plöchl, L., Jan 1 2000, In : Fusion Engineering and Design. 49-50, p. 371-376 6 p.

Research output: Contribution to journalConference article

Mockups
Tungsten
Brazing
Heat flux
Carbon
1999
38 Citations (Scopus)

Behavior of plasma-sprayed tungsten coatings on CFC and graphite under high heat load

Tokunaga, K., Yoshida, N., Noda, N., Kubota, Y., Shigeru, I., Sakamoto, R., Sogabe, T. & Plöchl, L., Mar 2 1999, In : Journal of Nuclear Materials. 266, p. 1224-1229 6 p.

Research output: Contribution to journalConference article

Tungsten
Graphite
fiber composites
Thermal load
carbon fibers
14 Citations (Scopus)

Computer simulation of the interaction between an edge dislocation and interstitial clusters in Fe and Ni

Kuramoto, E., Ohsawa, K., Tsutsumi, T. & Koyanagi, M., Jan 1 1999, In : Journal of Nuclear Materials. 271-272, p. 26-29 4 p.

Research output: Contribution to journalConference article

Edge dislocations
edge dislocations
interstitials
computerized simulation
Computer simulation
6 Citations (Scopus)

Fluence dependence of defect evolution in austenitic stainless steels during fission neutron irradiation

Watanabe, H., Muroga, T. & Yoshida, N., Jan 1 1999, In : Journal of Nuclear Materials. 271-272, p. 381-384 4 p.

Research output: Contribution to journalConference article

Neutron irradiation
austenitic stainless steels
neutron irradiation
Austenitic stainless steel
Phosphorus
12 Citations (Scopus)

MD study of the dynamic behavior of small interstitial clusters in Fe

Koyanagi, M., Ohsawa, K. & Kuramoto, E., Jan 1 1999, In : Journal of Nuclear Materials. 271-272, p. 205-208 4 p.

Research output: Contribution to journalConference article

Edge dislocations
Molecular dynamics
interstitials
edge dislocations
molecular dynamics
22 Citations (Scopus)

Microstructural evolution in vanadium irradiated during ion irradiation at constant and varying temperature

Ochiai, K., Watanabe, H., Muroga, T., Yoshida, N. & Matsui, H., Jan 1 1999, In : Journal of Nuclear Materials. 271-272, p. 376-380 5 p.

Research output: Contribution to journalConference article

Vanadium
Microstructural evolution
Ion bombardment
ion irradiation
vanadium