Detection of the kinetic geodesic acoustic mode (KGAM) near the centre region of JIPPT-IIU tokamak plasmas

Y. Hamada, T. Watari, A. Nishizawa, O. Yamagishi, K. Narihara, K. Ida, Y. Kawasumi, T. Ido, M. Kojima, K. Toi

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Abstract

The broad and intense spectrum of the geodesic acoustic mode (GAM) oscillations near the magnetic axis of tokamak plasmas with Te/T i ≫ 1 becomes narrow and weak during neutral beam heating. It then becomes wide and weak during third harmonics ICRF heating. The wide spectra of GAMs are generally consistent with recent kinetic GAM (KGAM) theories.

Original languageEnglish
Article number033005
JournalNuclear Fusion
Volume51
Issue number3
DOIs
Publication statusPublished - Mar 1 2011
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Hamada, Y., Watari, T., Nishizawa, A., Yamagishi, O., Narihara, K., Ida, K., ... Toi, K. (2011). Detection of the kinetic geodesic acoustic mode (KGAM) near the centre region of JIPPT-IIU tokamak plasmas. Nuclear Fusion, 51(3), [033005]. https://doi.org/10.1088/0029-5515/51/3/033005