A numerical and theoretical study of the multipactor appearance in the presence of a DC parallel electric field

Abstract

In this paper, we study the appearance of the multipactor in a simple system with a bottom plate holding a static potential Vd. We developed a numerical model to compute the evolution of the multipactor threshold as a function of the potential. We identify the nature of the resonant modes that appear at different Vd using resonance theory. Then, we use it to compute the theoretical threshold of the structure. As we use a very simplistic electron emission model to identify the multipactor modes, we compute the threshold in a more realistic configuration in a second step.