Modeling of high-current devices with explosive electron emission

Based on a detailed analysis of explosive electron emission in high-current electronic devices, we formulate a system of equations that describes the expansion of cathode plasma and the generation of high-current electron beams. The system underlies the numerical algorithm for the hybrid code which enables the simulation of the charged particles' dynamics in high-current vircators with open resonators. Using the Gabor–Morlet transform, we perform a time-frequency analysis of vircator radiation.