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Abstract:
We investigate the possibility of multifrequency operation of a 140-GHz gyrotron, which is designed to operate in the TE22,8 mode at 140 GHz and the TE19,6 mode at 111 GHz or the TE17,6 mode at 105 GHz, for which existing equipment can be used. The present calculations compute beam properties for a given set of coil currents, accelerating voltage and current, and then use these beam properties to compute the output power and efficiency. These calculations are performed separately for each mode.