A 400-keV X-ray generator with the pulse duration variable within 10-80 ns and an up to 70-Gy radiation dose

摘要

A high-power X-ray generator is created based on a universal setup for the experimental development of components of electrophysical installations (spark gaps, insulators, liquid resistors, etc.). The maximum energy of X-ray quanta is 400 keV, the pulse duration can he varied in steps from 10 to 80 ns, the radiation dose in the atmosphere near the exit window is ～70 Gy, and the X-ray pulse is synchronized within ±15 ns with respect to the external trigger pulse. The key units of the setup are a shielded 600-kV Marx generator with a high-precision switching and a low-impedance high-voltage pulse former with a single or double coaxial line. The electric length of the lines can be increased by extending its body and conductors and by filling it with transformer oil, glycerin, or water. A design of the diode with a ～70-kA radially converging ring electron beam and sidewall X-ray radiation release to the atmosphere through a thin dielectric window is presented. The dose characteristics and spectrum of the X-ray radiation are given.