Abstract

The axial speeds of different groups of ions as a function of a delay time τ, for two test gases, hydrogen and air, were measured in a coaxial plasma gun with the aid of monochromator. At least two plasmoids were observed: a slow one propagating with the speed of about 2.106 cm/sec and a fast one with the speed of about 5.106 cm/sec. The speeds of different ions were approximately equal for a given plasmoid. The qualitative discussion of the results obtained, based on the single particle model of acceleration, is given. It indicated that two groups of accelerated particles can emerge from the gun, one in which the energy of a particle is proportional to its mass and another in which the energy is independent of the mass of a particle but proportional to its charge. The electron temperature was measured as a function of time with the aid of a monochromator. A variation in temperature in the range 3.5-5.0 eV was observed.

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