[Table of Contents]

Plasma and Fusion Research

Volume 1, 047 (2006)

Rapid Communications

First Observation of High Density Edge Transport Barrier Formation during Reheat Mode of Helical Plasma in CHS
Takashi MINAMI, Shoichi OKAMURA , Tsuyoshi AKIYAMA, Mitsutaka ISOBE, Tetsutarou OISHI, Shinichiro KADO1), Katsumi IDA , Akihide FUJISAWA, Haruhisa NAKANO, Kiichiro NAKAMURA, KenichiNAGAOKA, Mikiro YOSHINUMA, Chihiro SUZUKI, Yasuo YOSHIMURA, Masaki TAKEUCHI2), Kazuo TOI, Shinsuke OHSHIMA2), Harukazu IGUCHI, Shin NISHIMURA, Akihiro SHIMIZU, Keisuke MATSUOKA, Chihiro TAKAHASHI and CHS group
National Institute for Fusion Science
1)
High Temperature Plasma Center, The University of Tokyo
2)
Department of Energy Engineering and Science, Nagoya University
(Received 5 August 2006 / Accepted 26 August 2006 / Published 31 October 2006)

Abstract

An improved confinement mode with reheat and edge transport barrier is observed in the Compact Helical System (CHS). This mode provides enhanced confinement in high density region (ne ˜ 1.2 × 1020 m-3) due to the increase in temperature while high density is maintained in the peripheral region.

Keywords

reheat mode, edge transport barrier, H-mode, helical plasma, improved confinement, CHS

DOI: 10.1585/pfr.1.047

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References

  • [1] S. Morita et al., Proc. 14th Int. Conf. Plasma Physics and Controlled Nuclear Fusion Research, Würzburg, Germany, 1992, 2, p.515.
  • [2] M. Isobe et al., Fusion Sci. Technol. 50, 229 (2006).
  • [3] T. Minami et al., Plasma Fusion Res. 1, 032 (2006).
  • [4] H. Yamada et al., Proc. 31st EPS Conf. on Plasma Phys. ECA Vol. 28G, P-5 099 (2004).
  • [5] S. Okamura et al., Nucl. Fusion 39, 1337 (1999).

This paper may be cited as follows:

Takashi MINAMI, Shoichi OKAMURA , Tsuyoshi AKIYAMA, Mitsutaka ISOBE, Tetsutarou OISHI, Shinichiro KADO, Katsumi IDA , Akihide FUJISAWA, Haruhisa NAKANO, Kiichiro NAKAMURA, KenichiNAGAOKA, Mikiro YOSHINUMA, Chihiro SUZUKI, Yasuo YOSHIMURA, Masaki TAKEUCHI, Kazuo TOI, Shinsuke OHSHIMA, Harukazu IGUCHI, Shin NISHIMURA, Akihiro SHIMIZU, Keisuke MATSUOKA, Chihiro TAKAHASHI and CHS group, Plasma Fusion Res. 1, 047 (2006).