High-density plasma production with potential confinement in the GAMMA 10 tandem mirror | Zendy

M. Ichimura | Zendy; T. Cho | Zendy; M. Hirata | Zendy; Hajime Hojo | Zendy; K. Ishii | Zendy; A. Itakura | Zendy; I. Katanuma | Zendy; J. Kohagura | Zendy; Y. Nakashima | Zendy; T. Saito | Zendy; T. Tamano | Zendy; Satoru Tanaka | Zendy; Y. Tatematsu | Zendy; K. Yatsu | Zendy; Masayuki Yoshikawa | Zendy

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High-density plasma production with potential confinement in the GAMMA 10 tandem mirror

Author(s) -

M. Ichimura,

T. Cho,

M. Hirata,

Hajime Hojo,

K. Ishii,

A. Itakura,

I. Katanuma,

J. Kohagura,

Y. Nakashima,

T. Saito,

T. Tamano,

Satoru Tanaka,

Y. Tatematsu,

K. Yatsu,

Masayuki Yoshikawa

Publication year - 2001

Publication title -

physics of plasmas

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.75

H-Index - 160

eISSN - 1089-7674

pISSN - 1070-664X

DOI - 10.1063/1.1350962

Subject(s) - physics , atomic physics , plasma , cyclotron , diamagnetism , magnetic confinement fusion , tandem , plasma confinement , range (aeronautics) , ion , nuclear physics , magnetic field , quantum mechanics , materials science , composite material , tokamak

The improvement of potential confinement was attained in the GAMMA 10 tandem mirror [Phys. Rev. Lett. 55, 939 (1985); Proceedings of the 13th International Conference on Plasma Physics and Controlled Nuclear Fusion Research, Washington, 1990 (International Atomic Energy Agency, Vienna, 1991), Vol. 2, p. 539] by axisymmetrization of heating systems for the plasma production, heating, and potential formation. A significant increase of the density and diamagnetism by the potential confinement was observed. In the previous experiment, it was difficult to increase the central cell density higher than 2.7×1018 m–3. One of the possible mechanisms is the density clamping due to the eigenmode formation of the ion–cyclotron-range of frequency (ICRF) waves in the axial direction. With high harmonic ICRF waves (RF3), the experiments to overcome this problem have been performed. In preliminary experiments with RF3 and NBI the maximum density of 4×1018 m–3 was attained

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