Evaluation of the radiation parameters of the Gamma-4 electrophysical facility

This paper presents the results of measurements of the generation parameters of the Gamma-4 electrophysical facility designed to generate high-power bremsstrahlung pulses with a duration of ≈50 ns. Five shots of the Gamma-1 accelerator were performed, in which the bremsstrahlung exposure dose was measured at a distance of 20, 30, and 60 cm from the accelerator target. It is shown that the experimental data correspond to the radiation field of a point cosine source with a relative error of 13%. The spatial distribution of the bremsstrahlung exposure dose of the Gamma-4 facility was reconstructed taking into account the spatial orientation of the irradiators. The bremsstrahlung exposure doses at a distance of 15 cm from the modules targets are presented.