Laser and Particle Beams

Research Article

Experiments on high-power ion beam generationin self-insulated diodes

V. M. Bystritskiia1, Yu. A. Glyshkoa1, A. A. Sinebrjukhova1 and A. V. Kharlova1

a1 Institute of Electrophysics, 620219, Sverdlovsk, USSR

Abstract

Experimental results are given on high-power ion beams (HPIB) generation in a vacuumspherical focusing diode with self-magnetic insulation, obtained from the nanosecond accelerator PARUS with 0.2-TW power and 60-ns pulse duration for a matched load. When the passive plasma source of the ions was used, the efficiency of the HPIB generationwas measured to be as high as 20% for 700-kV diode voltage and 10-kA/cm2 beam density in the focal plane.

The application of a coaxial plasma opening switch (POS) prior to the diode resultedin a factor-of-1.8 increase in the diode power in comparison with a match operation inthe absence of a POS.

(Received May 04 1990)

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