A Global Approach for Multipactor Discharge

摘要

Multipactor is a pernicious electrical discharge driven by secondary electron emission (SEE) that plagues radio- frequency (RF) components, accelerator structures, and space-borne systems. Recently, a new theoretical treatment of multipactor using concepts from chaos theory has been proposed. This new approach systematically applies iterative maps to identify multipacting boundaries more comprehensively than existing models. It does so by globally analyzing the structure of dynamical space, resulting in bifurcation diagrams that predict susceptibility to multipactor over a wide range of scenarios. In this paper, this new approach is expanded to multipactor in a parallel-plate geometry driven by a perpendicular RF electric-field. The theoretical predictions are validated against particle-in-cell simulations.