Radial wire-array rod-pinch diodes

This paper presents the results of experiments on the low-impedance diode formation in the configuration of a rodpinch diode shorted with a radial wire array. It has been found that using an axially asymmetric configuration with a radial wire array instead of an axisymmetric configuration with a radial foil does not substantially modify the focusing of the electron beam on the tip of the rod. Radial wire rod-pinches driven by the MIG generator (1 MV, 2 MA, 80 ns) produce 10-ns long X-ray pulses with the peak dose rate up to 1.1×10
⁸
rad/s and the total dose per pulse up to 2 rad. 0.8-mm size point-like X-ray sources attractive for off-axis radiography were observed.