Research Output

1999

Numerical study of chaos based on a shell model

Yagi, M., Itoh, S. I., Itoh, K. & Fukuyama, A., Jun 1999, In : Chaos. 9, 2, p. 393-402 10 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Probabilistic nature in L/H transition

Toda, S., Itoh, S., Yagi, M., Itoh, K. & Fukuyama, A., Jan 1 1999, In : Journal of the Physical Society of Japan. 68, 11, p. 3520-3527 8 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Recent progress in the superconducting tokamak TRIAM-1M

Itoh, S., Sato, K. N., Nakamura, K., Zushi, H., Sakamoto, M., Hanada, K., Jotaki, E., Makino, K., Kawasaki, S., Nakashima, H. & Iyomasa, A., Jan 1 1999, In : Plasma Physics and Controlled Fusion. 41, 3A, p. A587-A594

Research output: Contribution to journalArticle

1 Citation (Scopus)

Recent progress on high performance steady state plasmas in the superconducting tokamak TRIAM-1M

Itoh, S., Sato, K. N., Nakamura, K., Zushi, H., Sakamoto, M., Hanada, K., Jotaki, E., Makino, K., Kawasaki, S., Nakashima, H. & Yoshida, N., Sep 1 1999, In : Nuclear Fusion. 39, Special Issue, p. 1257-1270 14 p.

Research output: Contribution to journalArticle

38 Citations (Scopus)

Statistical theory of subcritically-excited strong turbulence in inhomogeneous plasmas. I

Itoh, S. I. & Itoh, K., Jun 1999, In : journal of the physical society of japan. 68, 6, p. 1891-1906 16 p.

Research output: Contribution to journalArticle

22 Citations (Scopus)

Statistical theory of subcritically-excited strong turbulence in inhomogeneous plasmas. II

Itoh, S. I. & Itoh, K., Aug 1999, In : journal of the physical society of japan. 68, 8, p. 2611-2625 15 p.

Research output: Contribution to journalArticle

21 Citations (Scopus)

Transition from L mode to high ion temperature mode in CHS heliotron/torsatron plasmas

Ida, K., Osakabe, M., Tanaka, K., Minami, T., Nishimura, S., Okamura, S., Fujisawa, A., Yamazaki, K., Yoshimura, Y., Kubo, S., Akiyama, R., Darrow, D. S., Idei, H., Iguchi, H., Isobe, M., Kado, S., Kondo, T., Lee, S., Matsuoka, K., Morita, S. & 11 others, Nomura, I., Ohdachi, S., Sasao, M., Shimizu, A., Takagi, S., Takahashi, C., Takayama, S., Takechi, M., Toi, K., Tsumori, K. & Watari, T., Dec 1 1999, In : Nuclear Fusion. 39, Special Issu, p. 1649-1658 10 p.

Research output: Contribution to journalArticle

19 Citations (Scopus)

Void swelling of copper and copper alloys induced by heavy ion irradiation

Muroga, T., Matue, T., Watanabe, H. & Yoshida, N., Dec 1 1999, In : ASTM Special Technical Publication. 1325, p. 991-998 8 p.

Research output: Contribution to journalConference article

6 Citations (Scopus)
2000

Changes of composition and microstructure of joint interface of tungsten coated carbon by high heat flux

Tokunaga, K., Matsubara, T., Miyamoto, Y., Takao, Y., Yoshida, N., Noda, N., Kubota, Y., Sogabe, T., Kato, T. & Plöchl, L., Jan 1 2000, In : Journal of Nuclear Materials. 283-287, PART II, p. 1121-1127 7 p.

Research output: Contribution to journalArticle

22 Citations (Scopus)

Comparison study of fast responses in confined plasmas with diffusivity models

Iwasaki, T., Itoh, S. I., Yagi, M. & Itoh, K., Jan 1 2000, In : Journal of the Physical Society of Japan. 69, 3, p. 722-728 7 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Computer simulation of atomic properties and dynamic behavior of interstitial clusters in Ni

Kuramoto, E., Ohsawa, K. & Tsutsumi, T., Dec 1 2000, In : Journal of Computer-Aided Materials Design. 7, 2, p. 89-95 7 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Computer simulation of defects interacting with a dislocation in Fe and Ni

Kuramoto, E., Ohsawa, K. & Tsutsumi, T., Jan 1 2000, In : Journal of Nuclear Materials. 283-287, PART II, p. 778-783 6 p.

Research output: Contribution to journalArticle

22 Citations (Scopus)

Correlation between defect structures and hardness in tantalum irradiated by heavy ions

Yasunaga, K., Watanabe, H., Yoshida, N., Muroga, T. & Noda, N., Dec 2000, In : Journal of Nuclear Materials. 283-287, PART I, p. 179-182 4 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Correlation of hardening and microstructure of tantalum irradiated with heavy ions

Muroga, T., Yasunaga, K., Katoh, Y., Watanabe, H., Yoshida, N. & Noda, N., Dec 1 2000, In : ASTM Special Technical Publication. 1366, p. 1186-1196 11 p.

Research output: Contribution to journalConference article

3 Citations (Scopus)

Current profile control and improvement of current drive efficiency by combined lower hybrid waves in TRIAM-1M

Sakamoto, M., Itoh, S., Sato, K. N., Nakamura, K., Zushi, H., Hanada, K., Jotaki, E., Makino, K., Kawasaki, S. & Nakashima, H., Jan 1 2000, In : Nuclear Fusion. 40, SPEC. ISS. 3, p. 453-459 7 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Experimental study of the bifurcation nature of the electrostatic potential of a toroidal helical plasma

Fujisawa, A., Iguchi, H., Minami, T., Yoshimura, Y., Tanaka, K., Itoh, K., Sanuki, H., Lee, S., Kojima, M., Itoh, A. S. I., Yokoyama, M., Kado, S., Okamura, S., Akiyama, R., Ida, K., Isobe, M., Nishimura, S., Osakabe, M., Nomura, I., Shimizu, A. & 5 others, Takahashi, C., Toi, K., Matsuoka, K., Hamada, Y. & Fujiwara, M., Oct 2000, In : Physics of Plasmas. 7, 10, p. 4152-4183 32 p.

Research output: Contribution to journalArticle

48 Citations (Scopus)

Fast propagation of pulses induced in edge

Iwasaki, T., Itoh, S., Yagi, M. & Itoh, K., Dec 1 2000, In : Contributions to Plasma Physics. 40, 3-4, p. 450-455 6 p.

Research output: Contribution to journalArticle

Formation and collapse of an internal transport barrier

Fukuyama, A., Itoh, K., Itoh, S. I. & Yagi, M., Jan 1 2000, In : Nuclear Fusion. 40, SPEC. ISS. 3, p. 685-692 8 p.

Research output: Contribution to journalArticle

8 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., Nov 2000, In : Fusion Engineering and Design. 49-50, p. 371-376 6 p.

Research output: Contribution to journalConference article

17 Citations (Scopus)

Influence of silicon or titanium on the microstructural evolution of Fe-Cr-35Ni alloys irradiated with neutrons or self-ions

Watanabe, H. & Garner, F. A., Dec 1 2000, In : ASTM Special Technical Publication. 1366, p. 859-873 15 p.

Research output: Contribution to journalConference article

Influence of variable temperatures irradiation on microstructural evolution in phosphorus doped Fe-Cr-Ni alloys

Hamaguchi, D., Watanabe, H., Muroga, T. & Yoshida, N., Dec 2000, In : Journal of Nuclear Materials. 283-287, PART I, p. 319-323 5 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

MHD interaction dynamics of shear flow and islands

Yagi, M., Itoh, S. I., Itoh, K. & Fukuyama, A., Jan 1 2000, In : Plasma Physics and Controlled Fusion. 42, SUPPL. 5A, p. A133-A138

Research output: Contribution to journalArticle

4 Citations (Scopus)

Microstructure of vanadium alloys during ion irradiation with stepwise change of temperature

Watanabe, H., Arinaga, T., Ochiai, K., Muroga, T. & Yoshida, N., Jan 1 2000, In : Journal of Nuclear Materials. 283-287, PART I, p. 286-290 5 p.

Research output: Contribution to journalArticle

13 Citations (Scopus)

Model analysis of edge relaxation phenomena

Matsukawa, S., Itoh, S. & Yagi, M., Dec 1 2000, In : Contributions to Plasma Physics. 40, 3-4, p. 381-386 6 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Model analysis of edge relaxation phenomena in tokamak plasmas

Matsukawa, S., Itoh, S. I. & Yagi, M., Dec 1 2000, In : Plasma Physics and Controlled Fusion. 42, 12, p. 1241-1257 17 p.

Research output: Contribution to journalArticle

On turbulent transport in burning plasmas

Itoh, K., Yagi, M., Itoh, S. I. & Fukuyama, A., Jul 1 2000, In : Plasma Physics and Controlled Fusion. 42, 7, p. 855-861 7 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Physics of the density limit in the W7-AS stellarator

Giannone, L., Baldzuhn, J., Burhenn, R., Grigull, P., Stroth, U., Wagner, F., Brakel, R., Fuchs, C., Hartfuss, H. J., McCormick, K., Weller, A., Wendland, C., Itoh, K. & Itoh, S. I., Jun 1 2000, In : Plasma Physics and Controlled Fusion. 42, 6, p. 603-627 25 p.

Research output: Contribution to journalArticle

39 Citations (Scopus)

Possibility of electric field bifurcation and internal transport barrier formation in LHD plasma

Sanuki, H., Itoh, K., Yokoyama, M., fujisawa, A., Ida, K., Toda, S. I., Itoh, S. I., Yagi, M. & Fukuyama, A., Jan 1 2000, In : Journal of the Physical Society of Japan. 69, 2, p. 445-450 6 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Possible control scenario of radial electric field by loss cone particle injection into a helical device

Motojima, O., Shishkin, A. A., Inagaki, S. & Watanabe, K. Y., Apr 1 2000, In : Nuclear Fusion. 40, 4, p. 833-846 14 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Progress summary of LHD engineering design and construction

Motojima, O., Akaishi, K., Chikaraishi, H., Funaba, H., Hamaguchi, S., Imagawa, S., Inagaki, S., Inoue, N., Iwamoto, A., Kitagawa, S., Komori, A., Kubota, Y., Maekawa, R., Masuzaki, S., Mito, T., Miyazawa, J., Morisaki, T., Murai, K., Muroga, T., Nagasaki, T. & 41 others, Nakamura, Y., Nishimura, A., Nishimura, K., Noda, N., Ohyabu, N., Sagara, A., Sakakibara, S., Sakamoto, R., Satoh, S., Satow, T., Shoji, M., Suzuki, H., Takahata, K., Tamura, H., Watanabe, K. Y., Yamada, H., Yamada, S., Yamaguchi, S., Yamazaki, K., Yanagi, N., Baba, T., Hayashi, H., Iima, M., Inoue, T., Kato, S., Kato, T., Kondo, T., Moriuchi, S., Ogawa, H., Ohtake, I., Ooba, K., Sekiguchi, H., Suzuki, N., Takami, S., Taniguchi, Y., Tsuzuki, T., Yamamoto, N., Yasui, K., Yonezu, H., Fujiwara, M. & Iiyoshi, A., Jan 1 2000, In : Nuclear Fusion. 40, SPEC. ISS. 3, p. 599-609 11 p.

Research output: Contribution to journalArticle

56 Citations (Scopus)

Recent progress on TRIAM-1M

Zushi, H., Itoh, S., Sato, K. N., Nakamura, K., Sakamoto, M., Hanada, K., Jotaki, E., Makino, K., Pan, Y. D., Kawasaki, S. & Nakashima, H., Jun 1 2000, In : Nuclear Fusion. 40, 6, p. 1183-1196 14 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Short wavelength fluctuations and electron transport in TFTR

Wong, K. L., Itoh, K., Itoh, S. I., Fukuyama, A. & Yagi, M., Nov 6 2000, In : Physics Letters, Section A: General, Atomic and Solid State Physics. 276, 5-6, p. 281-285 5 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Statistical theory of subcritically-excited strong turbulence in inhomogeneous plasmas. III

Itoh, S. I. & Itoh, K., Feb 2000, In : journal of the physical society of japan. 69, 2, p. 408-426 19 p.

Research output: Contribution to journalArticle

23 Citations (Scopus)

Statistical theory of subcritically-excited strong turbulence in inhomogeneous plasmas. IV

Itoh, S. I. & Itoh, K., Feb 2000, In : journal of the physical society of japan. 69, 2, p. 427-440 14 p.

Research output: Contribution to journalArticle

33 Citations (Scopus)

Statistical theory of subcritically-excited strong turbulence in inhomogeneous plasmas. V

Itoh, S. I. & Itoh, K., Oct 2000, In : journal of the physical society of japan. 69, 10, p. 3253-3265 13 p.

Research output: Contribution to journalArticle

13 Citations (Scopus)

Structure of materials deposited on the plasma facing surface in TRIAM-1M tokamak and the effect on hydrogen recycling

Hirai, T., Fujiwara, T., Tokunaga, K., Yoshida, N., Komori, A., Motojima, O. & Itoh, S., Jan 1 2000, In : Journal of Nuclear Materials. 283-287, PART II, p. 1177-1181 5 p.

Research output: Contribution to journalArticle

14 Citations (Scopus)

Tearing mode instability due to anomalous resistivity near edge

Furuya, A., Itoh, S. I. & Yagi, M., Jan 1 2000, In : Contributions to Plasma Physics. 40, 3-4, p. 375-380 6 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

The effect of electrical hydrogen charging on the strength of 316 stainless steel

Sugiyama, S., Ohkubo, H., Takenaka, M., Ohsawa, K., Ansari, M. I., Tsukuda, N. & Kuramoto, E., Jan 1 2000, In : Journal of Nuclear Materials. 283-287, PART II, p. 863-867 5 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Transport barrier formation and bifurcation patterns of potential profiles in the compact helical system heliotron/torsatron

Fujisawa, A., Iguchi, H., Minami, T., Yoshimura, Y., Tanaka, K., Itoh, K., Sanuki, H., Itoh, S. I., Isobe, M., Nishimura, S., Okamura, S., Matsuoka, K. & Fujiwara, M., Jan 1 2000, In : Plasma Physics and Controlled Fusion. 42, SUPPL. 5A, p. A103-A108

Research output: Contribution to journalArticle

5 Citations (Scopus)
2001

Anisotropic radiation damage by charge exchange neutrals under tokamak discharges in TRIAM-1M

Hirai, T., Fujiwara, T., Tokunaga, K., Yoshida, N. & Itoh, S., Mar 2001, In : Journal of Nuclear Materials. 290-293, p. 94-98 5 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Diagnostic first mirrors for burning plasma experiments (invited)

Voitsenya, V., Costley, A. E., Bandourko, V., Bardamid, A., Bondarenko, V., Hirooka, Y., Kasai, S., Klassen, N., Konovalov, V., Nagatsu, M., Nakamura, K., Orlinskij, D., Orsitto, F., Poperenko, L., Solodovchenko, S., Stan', A., Sugie, T., Taniguchi, M., Vinnichenko, M., Vukolov, K. & 1 others, Zvonkov, S., Jan 1 2001, In : Review of Scientific Instruments. 72, 1 II, p. 475-482 8 p.

Research output: Contribution to journalArticle

114 Citations (Scopus)

Energy confinement and thermal transport characteristics of net current free plasmas in the large helical device

Yamada, H., Watanabe, K. Y., Yamazaki, K., Murakami, S., Sakakibara, S., Narihara, K., Tanaka, K., Osakabe, M., Ida, K., Ashikawa, N., De Vries, P. C., Emoto, M., Funaba, H., Goto, M., Idei, H., Ikeda, K., Inagaki, S., Inoue, N., Isobe, M., Kado, S. & 66 others, Kaneko, O., Kawahata, K., Khlopenkov, K., Kobuchi, T., Komori, A., Kubo, S., Kumazawa, R., Liang, Y., Masuzaki, S., Minami, T., Miyazawa, J., Morisaki, T., Morita, S., Muto, S., Mutoh, T., Nagayama, Y., Nakajima, N., Nakamura, Y., Nakanishi, H., Nishimura, K., Noda, N., Notake, T., Ohdachi, S., Ohyabu, N., Oka, Y., Ozaki, T., Pavlichenko, R. O., Peterson, B. J., Rewoldt, G., Sagara, A., Saito, K., Sakamoto, R., Sasao, H., Sasao, M., Sato, K., Sato, M., Seki, T., Shimozuma, T., Shoji, M., Sugama, H., Suzuki, H., Takechi, M., Takeiri, Y., Tamura, N., Toi, K., Tokuzawa, T., Torii, Y., Tsumori, K., Yamada, I., Yamaguchi, S., Yamamoto, S., Yokoyama, M., Yoshimura, Y., Watari, T., Itoh, K., Matsuoka, K., Ohkubo, K., Ohtake, I., Satoh, S., Satow, T., Sudo, S., Tanahashi, S., Uda, T., Hamada, Y., Motojima, O. & Fujiwara, M., Jul 1 2001, In : Nuclear Fusion. 41, 7, p. 901-908 8 p.

Research output: Contribution to journalArticle

52 Citations (Scopus)

Enhanced current drive efficiency in a long discharge on TRIAM-1M

Hanada, K., Itoh, S., Nakamura, K., Zushi, H., Sakamoto, M., Jotaki, E., Pan, Y. D., Hasegawa, M., Kawasaki, S. & Nakashima, H., Nov 1 2001, In : Nuclear Fusion. 41, 11, p. 1539-1542 4 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Experimental test of the radial force balance equation in the compact helical system

Ida, K., Fujisawa, A., Iguchi, H., Yoshimura, Y., Minami, T., Okamura, S., Nishimura, S., Isobe, M., Kado, S., Liang, Y., Nomura, I., Tanaka, K., Osakabe, M., Takahashi, C. & Matsuoka, K., Jan 1 2001, In : Physics of Plasmas. 8, 1, p. 1-4 4 p.

Research output: Contribution to journalReview article

10 Citations (Scopus)

Impact of pellet injection on extension of the operational region in LHD

Sakamoto, R., Yamada, H., Tanaka, K., Narihara, K., Morita, S., Sakakibara, S., Masuzaki, S., Inagaki, S., Baylor, L. R., Fisher, P. W., Combs, S. K., Gouge, M. J., Kato, S., Komori, A., Kaneko, O., Ashikawa, N., De Vries, P., Emoto, M., Funaba, H., Goto, M. & 58 others, Ida, K., Idei, H., Ikeda, K., Isobe, M., Kado, S., Kawahata, K., Khlopenkov, K., Kubo, S., Kumazawa, R., Minami, T., Miyazawa, J., Morisaki, T., Murakami, S., Muto, S., Mutoh, T., Nagayama, Y., Nakamura, Y., Nakanishi, H., Nishimura, K., Noda, N., Notake, T., Kobuchi, T., Liang, Y., Ohdachi, S., Ohyabu, N., Oka, Y., Osakabe, M., Ozaki, T., Pavlichenko, R. O., Peterson, B. J., Sagara, A., Saito, K., Sasao, H., Sasao, M., Sato, K., Sato, M., Seki, T., Shimozuma, T., Shoji, M., Sudo, S., Suzuki, H., Takechi, M., Takeiri, Y., Tamura, N., Toi, K., Tokuzawa, T., Torii, Y., Tsumori, K., Yamada, I., Yamaguchi, S., Yamamoto, S., Yoshimura, Y., Watanabe, K. Y., Watari, T., Yamazaki, K., Hamada, Y., Motojima, O. & Fujiwara, M., Apr 1 2001, In : Nuclear Fusion. 41, 4, p. 381-386 6 p.

Research output: Contribution to journalArticle

51 Citations (Scopus)

Internal transport barrier triggered by neoclassical transport in W7-AS

Stroth, U., Itoh, K., Itoh, S. I., Hartfuss, H. & Laqua, H., Jun 25 2001, In : Physical Review Letters. 86, 26 I, p. 5910-5913 4 p.

Research output: Contribution to journalArticle

76 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 others, Notake, 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., Inagaki, S., 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

34 Citations (Scopus)

Maximum-J capability in a quasiaxisymmetric stellarator

Yokohama, M., Itoh, K., Okamura, S., Matsuoka, K. & Itoh, S., Jul 1 2001, In : Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 64, 1 II

Research output: Contribution to journalArticle

2 Citations (Scopus)

Maximum-J capability in a quasiaxisymmetric stellarator

Yokoyama, M., Itoh, K., Okamura, S., Matsuoka, K. & Itoh, S. I., Jan 1 2001, In : Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics. 64, 1, 1 p.

Research output: Contribution to journalArticle

Modelling of Density Limit Phenomena in Toroidal Helical Plasmas

Itoh, K., Itoh, S. I. & Giannone, L., Nov 1 2001, In : journal of the physical society of japan. 70, 11, p. 3274-3284 11 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)