Investigation of the saturation properties of gyroamplifiers |
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Authors: | Golomb D Goren Y Ron A Hirshfield JL |
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Institution: | Rafael, Haifa; |
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Abstract: | The saturation properties of a TE0n gyroamplifier are investigated using a particle-in-cell numerical code. The effect of beam velocity spread is analyzed. It is found that for velocity spread of up to 5%, the reduction in efficiency can be compensated by extending the interaction length. A numerical optimization of efficiency enhancement using a tapered magnetic field was demonstrated. A change in the saturation mechanism from phase trapping to thermalization using the suggested tapering was observed |
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