Characteristics of Electron Heat Transport of Plasma with an Electron Internal-Transport Barrier in the Large Helical Device | Zendy

K. Ida | Zendy; Τ. Shimozuma | Zendy; H. Funaba | Zendy; K. Narihara | Zendy; S. Kubo | Zendy; S. Murakami | Zendy; A. Wakasa | Zendy; M. Yokoyama | Zendy; Y. Takeiri | Zendy; K. Y. Watanabe | Zendy; K. Tanaka | Zendy; M. Yoshinuma | Zendy; Y. Liang | Zendy; N. Ohyabu | Zendy

Open Access

Characteristics of Electron Heat Transport of Plasma with an Electron Internal-Transport Barrier in the Large Helical Device

Author(s) -

K. Ida,

Τ. Shimozuma,

H. Funaba,

K. Narihara,

S. Kubo,

S. Murakami,

A. Wakasa,

M. Yokoyama,

Y. Takeiri,

K. Y. Watanabe,

K. Tanaka,

M. Yoshinuma,

Y. Liang,

N. Ohyabu

Publication year - 2003

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.91.085003

Subject(s) - thermal diffusivity , plasma , electron , atomic physics , materials science , electron temperature , large helical device , ion , electron transport chain , electron cyclotron resonance , diffusion , thermal , physics , chemistry , thermodynamics , nuclear physics , biochemistry , quantum mechanics

Associated with the transition from ion root to electron root, an electron internal transport barrier (ITB) appears in the large helical device, when the heating power of electron cyclotron resonance heating exceeds the threshold power. The incremental thermal diffusivity of electron heat transport chi(inc)(e) in the ITB plasma is much lower than that in the plasma with the heating power below the threshold, and the thermal diffusivity chi(e) decreases with increasing of heating power [dchi(e)/d(P/n(e))<0] in helical ITB plasmas.

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