Large potential change induced by pellet injection in JIPP T-IIU tokamak plasmas

Y. Hamada, K. N. Sato, H. Sakakita, A. Nishizawa, Y. Kawasumi, R. Liang, K. Kawahata, A. Ejiri, K. Toi, K. Narihara, K. Sato, T. Seki, H. Iguchi, A. Fujisawa, K. Adachi, al et al

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Abstract

A large, rapid change in the local plasma potential is found to be induced by off-axis hydrogen ice pellet injection into a tokamak plasma. The polarity of the change during the ablation is reversed when the pellet is injected into the upper and lower halves of the poloidal plasma cross-section. This change can be interpreted as being due to the ▽B drift of particles in the high density plasmas of the pellet cloud, before the increase of the plasma density due to the ablation becomes uniform on the magnetic surface.

Original languageEnglish
Pages (from-to)1047-1052
Number of pages6
JournalNuclear Fusion
Volume36
Issue number8
DOIs
Publication statusPublished - Aug 1 1996
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Hamada, Y., Sato, K. N., Sakakita, H., Nishizawa, A., Kawasumi, Y., Liang, R., ... et al, A. (1996). Large potential change induced by pellet injection in JIPP T-IIU tokamak plasmas. Nuclear Fusion, 36(8), 1047-1052. https://doi.org/10.1088/0029-5515/36/8/I08