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 KADO; Katsumi IDA; Akihide FUJISAWA; Haruhisa NAKANO; Kiichiro NAKAMURA; Kenichi NAGAOKA; Mikiro YOSHINUMA; Chihiro SUZUKI; Yasuo YOSHIMURA; Masaki TAKEUCHI; Kazuo TOI; Shinsuke OHSHIMA; Harukazu IGUCHI; Shin NISHIMURA; Akihiro SHIMIZU; Keisuke MATSUOKA; Chihiro TAKAHASHI; CHS group

doi:10.1585/pfr.1.047

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 KADO, Katsumi IDA, Akihide FUJISAWA, Haruhisa NAKANO, Kiichiro NAKAMURA, Kenichi NAGAOKA, Mikiro YOSHINUMA, Chihiro SUZUKI, Yasuo YOSHIMURA, Masaki TAKEUCHI, Kazuo TOI, Shinsuke OHSHIMA, Harukazu IGUCHI, Shin NISHIMURA, Akihiro SHIMIZU, Keisuke MATSUOKA, Chihiro TAKAHASHI, CHS group

Author information

Takashi MINAMI
National Institute for Fusion Science
Shoichi OKAMURA
National Institute for Fusion Science
Tsuyoshi AKIYAMA
National Institute for Fusion Science
Mitsutaka ISOBE
National Institute for Fusion Science
Tetsutarou OISHI
National Institute for Fusion Science
Shinichiro KADO
High Temperature Plasma Center, The University of Tokyo
Katsumi IDA
National Institute for Fusion Science
Akihide FUJISAWA
National Institute for Fusion Science
Haruhisa NAKANO
National Institute for Fusion Science
Kiichiro NAKAMURA
National Institute for Fusion Science
Kenichi NAGAOKA
National Institute for Fusion Science
Mikiro YOSHINUMA
National Institute for Fusion Science
Chihiro SUZUKI
National Institute for Fusion Science
Yasuo YOSHIMURA
National Institute for Fusion Science
Masaki TAKEUCHI
Department of Energy Engineering and Science, Nagoya University
Kazuo TOI
National Institute for Fusion Science
Shinsuke OHSHIMA
Department of Energy Engineering and Science, Nagoya University
Harukazu IGUCHI
National Institute for Fusion Science
Shin NISHIMURA
National Institute for Fusion Science
Akihiro SHIMIZU
National Institute for Fusion Science
Keisuke MATSUOKA
National Institute for Fusion Science
Chihiro TAKAHASHI
National Institute for Fusion Science
CHS group
National Institute for Fusion Science

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

JOURNALS FREE ACCESS

Volume 1 (2006) Pages 047

DOI https://doi.org/10.1585/pfr.1.047

Details

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 (n_e ˜ 1.2 × 10²⁰ m^-3) due to the increase in temperature while high density is maintained in the peripheral region.

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