Calculation of non-stationary effects in gyrotrons

Abstract

A time-dependent slow-time-scale theory is developed for the analysis of high power, pulsed gyrotrons driven by external RF sources. Phase-locking of a gyrotron by direct injection of radiation into the cavity and by beam premodulation via a bunching cavity is investigated. Calculations are carried out to simulate the operation of a 35 GHz high voltage gyrotron.