Nonlinear beam loading and dynamical limiting currents in a high-power microwave gap
- 7 May 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 64 (19) , 2320-2323
- https://doi.org/10.1103/physrevlett.64.2320
Abstract
We show that the intense space charge of a high-current beam may increase the gap capacitance by a factor of 2 to 3 over the vacuum value. The limiting current under an ac gap voltage is computed and compared with the steady-state value. The implications of these findings on operation efficiency and frequency stability of high-power microwave devices are discussed.Keywords
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