| Original Articles |
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A New High Efficiency Multiwave Cerenkov Generator Operating
at Low Magnetic Field |
| ZHANG Jun;ZHONG Hui-Huang;SHU Ting;YANG Jian-Hua |
| College of Science, National University of Defense Technology, Changsha 410073 |
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| Cite this article: |
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ZHANG Jun, ZHONG Hui-Huang, SHU Ting et al 2003 Chin. Phys. Lett. 20 2265-2268 |
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Abstract With a resonant cavity inserted between the second slow-wave-structure section and the tapered waveguide, a new structure of the multiwave Cerenkov generator (MWCG) operating at low guiding magnetic field is proposed to produce high efficiency and high power microwave. Some features and potential advantages of the proposed device are analysed. The 2.5-dimensional particle-in-cell simulation is employed to verify the initial expectation. The results show that, with the use of an electron beam of 640 keV and 8.4 kA guided by the magnetic field of 0.6 T, a stable and monochromatic X-band microwave output of 4 GW in peak power is achieved, and the average efficiency is over 30%.
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| Keywords:
84.40.Fe
52.59.Rz
52.65.Rr
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Published: 01 December 2003
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| PACS: |
84.40.Fe
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(Microwave tubes (e.g., klystrons, magnetrons, traveling-wave, backward-wave tubes, etc.))
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52.59.Rz
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(Free-electron devices)
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52.65.Rr
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(Particle-in-cell method)
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