• O.V. Sinitsyn, T.M. Antonsen, G.S. Nusinovich
  UMD, College Park, Maryland

Multipactor (MP) is known as the avalanche growth of the number of secondary electrons emitted from a solid surface exposed to an rf field under vacuum conditions. MP may occur in various microwave and rf systems such as microwave tubes, rf windows and launchers, accelerating structures and rf satellite payloads. This work is focused on the multipactor analysis in dielectric-loaded accelerator (DLA) structures. It was initiated by the experimental and theoretical studies of such structures jointly done by Argonne National Laboratory and Naval Research Laboratory [1]. Our goal was to create a self-consistent non-stationary model of MP that would explain the experimental results and help finding conditions for MP suppression. We created a 2D model whose description and some initial simulation data were presented in Ref. 2. In this paper, we demonstrate new simulation results and compare them with the experimental ones obtained during recent extensive studies of DLA structures performed by Argonne National Laboratory, Naval Research Laboratory, SLAC National Accelerator Laboratory and Euclid TechLabs, LLC [3].

1. J. G. Power et al., Phys. Rev. Lett., 92, 164801 (2004).
2. O. V. Sinitsyn et al., Phys. Plasmas, vol. 16, 073102 (2009).
3. C. Jing et al., IEEE Trans. Plasma Sci., vol. 38 (2010).