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A gyrotron with an axis-encircling electron beam is useful for high frequency operation, because the high beam efficiency is kept even at high harmonic of electron–cyclotron resonance. We have designed and constructed such a gyrotron with a permanent magnet. The gyrotron has already succeeded in operation at the third harmonic and the fourth harmonic resonances. The operation frequencies are 89.3...
In this paper, we present results of a conceptual design study of a prospective gyro-device with a permanent magnet system and an axis-encircling electron beam. Computer-aided electron-optical design of the tube has been performed by the new version of the software package GUN-MIG named GUN-MIG/CUSP. It is based on a self-consistent relativistic physical model and is developed as a problem-oriented...
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