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The nonlinear theory of slow-wave electron cyclotron masers with inclusion of the beam velocity spread |
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| Authors: | Ling-Bao Kong Hong-Yu Wang Zhi-Ling Hou Hai-Bo Jin Chao-Hai Du |
| Affiliation: | 1. School of Science, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China;2. Beijing Key Laboratory of Environmentally Harmful Chemicals Assessment, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China;3. School of Physics, Anshan Normal University, Anshan 114005, People’s Republic of China;4. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China;5. Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China |
| Abstract: | The nonlinear theory of slow-wave electron cyclotron masers (ECM) with an initially straight electron beam is developed. The evolution equation of the nonlinear beam electron energy is derived. The numerical studies of the slow-wave ECM efficiency with inclusion of Gaussian beam velocity spread are presented. It is shown that the velocity spread reduces the interaction efficiency. |
| Keywords: | Slow-wave ECM Velocity spread Interaction efficiency Nonlinear energy evolution equation |
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