Ishimura describes the problems about the experiment for getting high temperature, low density plasmas by projecting highly ionized Hydrogen with a plasma gun into a casp-magnetic field, and gives general explanations refering to the data taken in his laboratory. Nakai has operated the experiments of producing ionized shock wave by using several kinds of shock tubes, especially he assured the existence of precursor electrons in front of a shock wave. Measurements of electron density in a plasma with Mach-Zehnder interferometer and other interesting methods of measurement are introduced. Yamanaka's lecture is concerned with the study of interactions between Laser and the media, and its applications , such as the mechanism of producing a plasma by concentrating a Laser beam into a very small spot and a new technique of plasma diagonostics using a Laser as a light source for Mach-Zenhder interferometer. By using the so-called computer experiment which, for a physical system to be solved, at first builds the model composed of many numbers of particles called superpartcles, and traces their behaviour in the electronic computer, Hasegawa analysed a nonlinear character of the plasma in a magnetic field. Morioka shows the experiment about subsonic ionized gas flow which is produced by heating Argon with radio frequency generator of 4Mc,15kW and connected to the vaccum system. And he gives the general view for operating a MHD shock wave odservation by making a supersonic ionized flow, heating the gas with D.C. arc generator of 200kW. In both cases, special interests are towards the mutual interaction between ionized gas and external magnetic fields. And he summarized the basic equations for theoretically treating Argon flows if few then thousands Degrees. Relating to the radiation mechanism, the importance of considering a collision term is specially indicated. Niu discusses some highlights in the theory of fully ionized plasma at the present state. In case of the electric field applied, the runaway effect of electrons is presented following to Kruskal & Bernstein's theory. And the collisionless shock relations were deduced by using C.G.L. fluid model.
電磁場中での電離気体の動き
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