Study of pellet-plasma interaction in the GAMMA 10 tandem mirror

E. Kawamori, T. Tamano, Y. Nakashima, M. Yoshikawa, S. Kobayashi, Y. Watanabe, H. Aminaka, T. Cho, K. Ishii, A. Mase, K. Yatsu

研究成果: Conference article同行評審

摘要

In the GAMMA10 tandem mirror, the first pellet injection experiments in open systems have started. The tandem mirror machine is suitable for measuring propagation of pellet-fueled particles along the magnetic field lines. We observed a very low frequency oscillation in various diagnostic signals from the plasmas with a pellet injection. The frequency of the oscillation is a few hundred Hz. It is found that the phase of those is signals change to anti-phase at a certain place. The oscillation continued during plug-ECH for the formation of confining potential and its amplitude decays within a several ms after the end of ECH pulse. Measurements at several locations along the field lines indicates that this oscillation is a standing wave along field lines of plasma density perturbation due to the pellet injection. The wavelength of the oscillation is estimated to be about 6m. The oscillation has mode number n=3.

原文English
頁(從 - 到)257-260
頁數4
期刊Fusion Technology
39
發行號1 T
DOIs
出版狀態Published - 2001 一月
事件International Conference on Open Magnetic Systems for Plasma Confinement - Tsukuba, Jpn
持續時間: 2000 七月 32000 七月 6

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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