MULTIPACTOR DISCHARGE ON METALS AND DIELECTRICS - HISTORICAL REVIEW AND RECENT THEORIES

This paper reviews the history of multipactor discharge theory, focusi ng on recent models of multipactor accessibility and saturation. Two c ases are treated in detail: That of a first-order, two-surface multipa ctor, and that of a single-surface multipactor on a dielectric. In bot h cases, susceptibility curves are constructed to indicate the regions of external parameter space where multipactor is Likely to occur, tak ing into account the dependence on surface materials, and the effects of space charge and cavity loading. In the case of a dielectric, multi pactor is found to deliver about 1% of the rf power to the surface. Th e two cases are contrasted in light of experimental observations. (C) 1998 American Institute of Physics.