Plasma structure and behavior in a disk magnetohydrodynamic generator

DOI PDF 被引用文献3件
  • Tomoyuki Murakami
    Department of Energy Sciences, Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
  • Yoshihiro Okuno
    Department of Energy Sciences, Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
  • Hiroyuki Yamasaki
    Department of Energy Sciences, Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan

抄録

<jats:p>We describe the structure and behavior of a nonequilibrium cesium-seeded helium plasma in a disk-shaped magnetohydrodynamic generator. Excellent time-resolved optical measurements clarify the spatial distribution of the electron temperature. A correlation analysis and the visualization of the plasma structure reveal its propagation phenomena from upstream to downstream and the transformation from a homogeneous quasisteady state to a self-consistent periodical state. A linear perturbation analysis suggests that the inhomogeneous plasma structure associated with the unique electron temperature behavior is closely related to ionization instability due to weak seed ionization.</jats:p>

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