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Page 1
Observation of beat oscillation generation by coupled waves associated with parametric decay during radio frequency wave heating of a spherical tokamak plasma.
Nagashima Y, Oosako T, Takase Y, Ejiri A, Watanabe O, Kobayashi H, Adachi Y, Tojo H, Yamaguchi T, Kurashina H, Yamada K, An BI, Kasahara H, Shimpo F, Kumazawa R, Hayashi H, Matsuzawa H, Hiratsuka J, Hanashima K, Kakuda H, Sakamoto T, Wakatsuki T. Nagashima Y, et al. Among authors: kumazawa r. Phys Rev Lett. 2010 Jun 18;104(24):245002. doi: 10.1103/PhysRevLett.104.245002. Epub 2010 Jun 16. Phys Rev Lett. 2010. PMID: 20867308
The observation of nonlinear ion cyclotron wave excitation during high-harmonic fast wave heating in the large helical device.
Kasahara H, Seki T, Kumazawa R, Saito K, Mutoh T, Kubo S, Shimozuma T, Igami H, Yoshimura Y, Takahashi H, Yamada I, Tokuzawa T, Ohdachi S, Morita S, Nomura G, Shimpo F, Komori A, Motojima O, Oosako T, Takase Y, Zhao Y, Kwak J. Kasahara H, et al. Among authors: kumazawa r. Rev Sci Instrum. 2008 Oct;79(10):10E722. doi: 10.1063/1.2973325. Rev Sci Instrum. 2008. PMID: 19044539
Ion heating and high-energy-particle production by ion-cyclotron heating in the large helical device.
Mutoh T, Kumazawa R, Seki T, Watari T, Saito K, Torii Y, Hartmann DA, Zhao Y, Sasao M, Isobe M, Osakabe M, Krasilnikov AV, Ozaki T, Narihara K, Nagayama Y, Inagaki S, Shimpo F, Nomura G, Yokota M, Akaishi K, Ashikawa N, de Vries P, Emoto M, Funaba H, Fukuyama A, Goto M. Mutoh T, et al. Among authors: kumazawa r. Phys Rev Lett. 2000 Nov 20;85(21):4530-3. doi: 10.1103/PhysRevLett.85.4530. Phys Rev Lett. 2000. PMID: 11082588
Sawtooth oscillation in current-carrying plasma in the large helical device.
Nagayama Y, Kawahata K, Inagaki S, Peterson BJ, Sakakibara S, Tanaka K, Tokuzawa T, Watanabe KY, Ashikawa N, Chikaraishi H, Emoto M, Funaba H, Goto M, Hamada Y, Ichiguchi K, Ida K, Idei H, Ido T, Ikeda K, Imagawa S, Isayama A, Isobe M, Iwamoto A, Kaneko O, Kitagawa S, Komori A, Kubo S, Kumazawa R, Masuzaki S, Matsuoka K, Mito T, Miyazawa J, Morisaki T, Morita S, Motojima O, Murakami S, Mutoh T, Muto S, Nakajima N, Nakamura Y, Nakanishi H, Narihara K, Narushima Y, Nishimura A, Nishimura K, Nishizawa A, Noda N, Ohdachi S, Ohkubo K, Ohyabu N, Oka Y, Osakabe M, Ozaki T, Sagara A, Saito K, Sakamoto R, Sasao M, Sato K, Seki T, Shimozuma T, Shoji M, Suzuki H, Sudo S, Takahata K, Takeiri Y, Toi K, Tsumori K, Yamada H, Yamada I, Yamazaki K, Yanagi N, Yokoyama M, Yoshimura Y, Yoshinuma Y, Watari T; LHD Group. Nagayama Y, et al. Among authors: kumazawa r. Phys Rev Lett. 2003 May 23;90(20):205001. doi: 10.1103/PhysRevLett.90.205001. Epub 2003 May 20. Phys Rev Lett. 2003. PMID: 12785901
Observation of the "self-healing" of an error field island in the large helical device.
Narihara K, Watanabe KY, Yamada I, Morisaki T, Tanaka K, Sakakibara S, Ida K, Sakamoto R, Ohyabu N, Ashikawa N, Emoto M, Funaba H, Goto M, Hayashi H, Idei H, Ikeda K, Inagaki S, Inoue N, Kaneko O, Kawahata K, Kobuchi T, Komori A, Kubo S, Kumazawa R, Masuzaki S, Miyazawa J, Morita S, Motojima O, Murakami S, Muto S, Mutoh T, Nagayama Y, Nakamura Y, Nakanishi H, Nishimura K, Noda N, Notake T, Ohdachi S, Oka Y, Ohkubo K, Osakabe M, Ozaki S, Peterson BJ, Sagara A, Saito K, Sasao H, Sasao M, Sato K, Sato M, Seki T, Shimozuma T, Shoji C, Sudo S, Suzuki H, Takayama A, Takechi M, Takeiri Y, Tamura N, Toi K, Tokuzawa N, Torii Y, Tsumori K, Watari T, Yamada H, Yamaguchi S, Yamamoto S, Yamazaki K, Yoshimura Y. Narihara K, et al. Among authors: kumazawa r. Phys Rev Lett. 2001 Sep 24;87(13):135002. doi: 10.1103/PhysRevLett.87.135002. Epub 2001 Sep 7. Phys Rev Lett. 2001. PMID: 11580597 Free article.
Role of edge magnetic shear on the limiter H-mode transition of the JIPP T-IIU tokamak.
Toi K, Kawahata K, Morita S, Watari T, Kumazawa R, Ida K, Ando A, Oka Y, Sakamoto M, Hamada Y, Adati K, Ando R, Aoki T, Hidekuma S, Hirokura S, Kaneko O, Karita A, Kawamoto T, Kawasumi Y, Kuroda T, Masai K, Narihara K, Ogawa Y, Ohkubo K, Okajima S, Ozaki T, Sasao M, Sato KN, Seki T, Shimpo F, Takahashi H, Tanahashi S, Taniguchi Y, Tsuzuki T. Toi K, et al. Among authors: kumazawa r. Phys Rev Lett. 1990 Apr 16;64(16):1895-1898. doi: 10.1103/PhysRevLett.64.1895. Phys Rev Lett. 1990. PMID: 10041522 No abstract available.
Reduction of ion thermal diffusivity associated with the transition of the radial electric field in neutral-beam-heated plasmas in the large helical device.
Ida K, Funaba H, Kado S, Narihara K, Tanaka K, Takeiri Y, Nakamura Y, Ohyabu N, Yamazaki K, Yokoyama M, Murakami S, Ashikawa N, deVries PC, Emoto M, Goto M, Idei H, Ikeda K, Inagaki S, Inoue N, Isobe M, Itoh K, Kaneko O, Kawahata K, Khlopenkov K, Komori A, Kubo S, Kumazawa R, Liang Y, Masuzaki S, Minami T, Miyazawa J, Morisaki T, Morita S, Mutoh T, Muto S, Nagayama Y, Nakanishi H, Nishimura K, Noda N, Notake T, Kobuchi T, Ohdachi S, Ohkubo K, Oka Y, Osakabe M, Ozaki T, Pavlichenko RO, Peterson BJ, Sagara A, Saito K, Sakakibara S, Sakamoto R, Sanuki H, Sasao H, Sasao M, Sato K, Sato M, Seki T, Shimozuma T, Shoji M, Suzuki H, Sudo S, Tamura N, Toi K, Tokuzawa T, Torii Y, Tsumori K, Yamamoto T, Yamada H, Yamada I, Yamaguchi S, Yamamoto S, Yoshimura Y, Watanabe KY, Watari T, Hamada Y, Motojima O, Fujiwara M. Ida K, et al. Among authors: kumazawa r. Phys Rev Lett. 2001 Jun 4;86(23):5297-300. doi: 10.1103/PhysRevLett.86.5297. Phys Rev Lett. 2001. PMID: 11384482 Free article.
Edge thermal transport barrier In LHD discharges.
Ohyabu N, Narihara K, Funaba H, Morisaki T, Masuzaki S, Kawahata K, Komori A, Kaneko O, Yamada H, deVries P, Emoto M, Goto M, Hamada Y, Ida K, Idei H, Inagaki S, Inoue N, Kado S, Kubo S, Kumazawa R, Minami T, Miyazawa J, Morita S, Murakami S, Mutoh T, Muto S. Ohyabu N, et al. Among authors: kumazawa r. Phys Rev Lett. 2000 Jan 3;84(1):103-6. doi: 10.1103/PhysRevLett.84.103. Phys Rev Lett. 2000. PMID: 11015845
Island dynamics in the large-helical-device plasmas.
Ohyabu N, Ida K, Morisaki T, Narihara K, Komori A, Watanabe K, Narushima Y, Nagayama Y, Shoji M, Ashikawa N, Emoto M, Funaba H, Goto M, Idei H, Ikeda K, Inagaki S, Inoue N, Isobe M, Khlopenkov K, Kobuchi T, Kostrioukov A, Kubo S, Kumazawa R, Liang Y, Masuzaki S, Minami T, Miyazawa J, Morita S, Muto S, Mutoh T, Murakami S, Nakamura Y, Nakanishi H, Nishimura K, Noda N, Notake T, Ohkubo K, Ohdachi S, Oka Y, Osakabe M, Ozaki T, Peterson BJ, Sakamoto R, Sakakibara S, Sagara A, Saito K, Sasao M, Sato K, Sato M, Seki T, Shimozuma T, Sudo S, Suzuki H, Takeiri Y, Tanaka K, Tamura N, Toi K, Tokuzawa T, Torii Y, Tsumori K, Watanabe T, Yamazaki K, Yamada I, Yamamoto S, Yokoyama M, Yoshimura Y, Watari T, Xu Y, Kaneko O, Kawahata K, Yamada H, Motojima O. Ohyabu N, et al. Among authors: kumazawa r. Phys Rev Lett. 2002 Feb 4;88(5):055005. doi: 10.1103/PhysRevLett.88.055005. Epub 2002 Jan 22. Phys Rev Lett. 2002. PMID: 11863738
67 results