Self-Consistent Effects on the Starting Current of Gyrotron Oscillators |
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| Authors: | T H Chang K F Pao S H Chen K R Chu |
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| Institution: | 1. National Center for Theoretical Sciences, Hsinchu, Taiwan
2. Department of Physics, National Tsing-Hua Univ., Hsinchu, Taiwan
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| Abstract: | Self-consistent effects on the starting current of gyrotron oscillators are examined. Field profiles in the open cavity are shown to be sensitive to the interaction dynamics. This can either significantly raise or lower the oscillation threshold, particularly for the low-Q modes. The transition from resonant-mode oscillations at the low magnetic field to backward-wave oscillations at the high magnetic field is demonstrated. |
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