The BING family of small-scale high-voltage nanosecond pulsed power generators, designed for the building of spark gap triggering systems for powerful pulsed electrophysical devices of different functional use, is described. BING generators synchronously form voltage pulses of any polarity with amplitudes of 9-70 kV and duration of 200-1000 ns. The original construction of the discharge circuit allowed voltage pulse rise-times of 6-8 ns at maximum load. Low jitter relative to triggering pulses (/spl plusmn/1 ns) allows a system with simultaneous triggering of several BING generators for performing guaranteed multichannel commutation. Design and generators operation data are presented.

A modular high-voltage device, forming in its load electric pulses with amplitudes of 100-200 kV, current 400-800 kA and duration 20 ns is described. The device is intended for the generation of Bremsstrahlung pulses. The device is made on the basis of four generators of GIIR-4/sup 1/ type. Their high accuracy of triggering allows synchronous module operation. The load of the GIIR-4 is either 42 high-voltage cables of KVI-300 type, or a transforming line with a transformation coefficient of 2. The peculiarity of the module is the simultaneous joint charging of the GIIR-4 forming lines and the HV synchronization block from one Marx generator. This allowed an increase in the reliability of device operation and repetition rates up to 20 Hz. Data on module experiments and data concerning the operation resources of the mostly electric strength device units are also presented.

The paper experimentally studied the electron beam behavior in the virtual cathode formation region. A coaxial vacuum diode having a flat graphite cathode 30 mm in diameter served as the beam source. Electrons were injected into the cylindrical drift chamber through the wire anode. The accelerating voltage pulse amplitude was as high as /spl sim/270 kV, the beam current varied within 15-22 kA, its half-height duration being 20 ns. For the drift chamber used in experiments the injected beam was beyond the limit. Along with conventional diagnostics means a wire probe arranged in the anode plane transverse to the beam was used in this work for the current measurement. The probe recorded both the forward beam current and the current of electrons reflected from the virtual cathode. There are given the results of recording X-ray radiation from the virtual cathode formation region using a pinhole camera. It has been noted that the beam homogeneity produces a great effect upon the radiation generation efficiency.