Theory of a frequency-step-tunable gyrotron for optimum plasma ECRH |
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| Authors: | Dumbrajs O Nuisnovich GS |
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| Institution: | Arbeitsbereich Hochfrequenztech., Tech. Univ., Hamburg-Harburg; |
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| Abstract: | A theory is presented which describes the dependence of the multimode operation of a gyrotron on the modulation and beam voltages. Nonlinear nonstationary processes are considered. An approximate start-up scenario of a gyrotron is determined which makes it possible to achieve single-mode excitation and high-efficiency operation in a desired mode, as well as to switch the tube to a similar operation in other modes |
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