Secondary electron emission on alumina output windows with longitudinal RF electric field

Based on an improved multipactor dynamic model, the multipactor phenomenon on a dielectric surface existing longitudinal RF electric field was simulated using Monte Carlo method. The temporal evolution images of the multipactor discharge were investigated. The power deposited on the dielectric surface by the multipactor was also obtained in terms of an S-band RF dielectric window. The results show that, the longitudinal RF electric field may intensify the single-surface multipactor effect, which is likely to result in dielectric crack and detrimental to RF transmission.