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Observation of reversed-shear Alfvén eigenmodes excited by energetic ions in a helical plasma.
Toi K, Watanabe F, Tokuzawa T, Ida K, Morita S, Ido T, Shimizu A, Isobe M, Ogawa K, Spong DA, Todo Y, Watari T, Ohdachi S, Sakakibara S, Yamamoto S, Inagaki S, Narihara K, Osakabe M, Nagaoka K, Narushima Y, Watanabe KY, Funaba H, Goto M, Ikeda K, Ito T, Kaneko O, Kubo S, Murakami S, Minami T, Miyazawa J, Nagayama Y, Nishiura M, Oka Y, Sakamoto R, Shimozuma T, Takeiri Y, Tanaka K, Tsumori K, Yamada I, Yoshinuma M, Kawahata K, Komori A; LHD Experiment Group. Toi K, et al. Among authors: nagaoka k. Phys Rev Lett. 2010 Oct 1;105(14):145003. doi: 10.1103/PhysRevLett.105.145003. Epub 2010 Oct 1. Phys Rev Lett. 2010. PMID: 21230839 Free article.
Identification of zonal flows in a toroidal plasma.
Fujisawa A, Itoh K, Iguchi H, Matsuoka K, Okamura S, Shimizu A, Minami T, Yoshimura Y, Nagaoka K, Takahashi C, Kojima M, Nakano H, Ohsima S, Nishimura S, Isobe M, Suzuki C, Akiyama T, Ida K, Toi K, Itoh SI, Diamond PH. Fujisawa A, et al. Among authors: nagaoka k. Phys Rev Lett. 2004 Oct 15;93(16):165002. doi: 10.1103/PhysRevLett.93.165002. Epub 2004 Oct 13. Phys Rev Lett. 2004. PMID: 15524996 Free article.
Experimental evidence of a zonal magnetic field in a toroidal plasma.
Fujisawa A, Itoh K, Shimizu A, Nakano H, Ohshima S, Iguchi H, Matsuoka K, Okamura S, Minami T, Yoshimura Y, Nagaoka K, Ida K, Toi K, Takahashi C, Kojima M, Nishimura S, Isobe M, Suzuki C, Akiyama T, Nagashima Y, Itoh SI, Diamond PH. Fujisawa A, et al. Among authors: nagaoka k. Phys Rev Lett. 2007 Apr 20;98(16):165001. doi: 10.1103/PhysRevLett.98.165001. Epub 2007 Apr 18. Phys Rev Lett. 2007. PMID: 17501426 Free article.
Neutral beam injection with an improved accelerator for LHD.
Tsumori K, Osakabe M, Kaneko O, Takeiri Y, Nagaoka K, Oka Y, Ikeda K, Shibuya M, Asano E, Komada S, Kondo T, Sato M. Tsumori K, et al. Among authors: nagaoka k. Rev Sci Instrum. 2008 Feb;79(2 Pt 2):02C107. doi: 10.1063/1.2822111. Rev Sci Instrum. 2008. PMID: 18315233
Radial transport characteristics of fast ions due to energetic-particle modes inside the last closed-flux surface in the compact helical system.
Nagaoka K, Isobe M, Toi K, Shimizu A, Fujisawa A, Ohshima S, Nakano H, Osakabe M, Todo Y, Akiyama T, Nagashima Y, Suzuki C, Nishimura S, Yoshimura Y, Matsuoka K, Okamura S. Nagaoka K, et al. Phys Rev Lett. 2008 Feb 15;100(6):065005. doi: 10.1103/PhysRevLett.100.065005. Epub 2008 Feb 15. Phys Rev Lett. 2008. PMID: 18352485 Free article.
Characteristics of 80 keV positive ion source for Large Helical Device.
Nakano H, Osakabe M, Tsumori K, Sato M, Shibuya M, Ikeda K, Nagaoka K, Kaneko O, Asano E, Kondo T, Komada S, Takeiri Y. Nakano H, et al. Among authors: nagaoka k. Rev Sci Instrum. 2010 Feb;81(2):02B116. doi: 10.1063/1.3298843. Rev Sci Instrum. 2010. PMID: 20192422
578 results