An Experimental Study on Cyclotron–Cherenkov Radiation |
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Authors: | Cha Yeol Lee and Masaru Masuzaki |
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Institution: | (1) Department of Physics, Faculty of Science, Kanazawa University, Kanazawa, 920-11, Japan |
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Abstract: | We searched numerically dielectric-loaded cylindrical waveguide configurations with an injected electron beam in which the growth rate of the cyclotron-Cherenkov instability surpassed that of the Cherenkov instability, and found such a configuration. This configuration consists of a metallic core and an outer metallic cylinder with a dielectric liner on the inner surface. In order to investigate experimentally radiation due to the cyclotron-Cherenkov instability, we designed and assembled an experimental device using the computational results. We studied beam propagation in the dielectric-loaded coaxial waveguide and microwave radiation due to the cyclotron-Cherenkov instability and the Cherenkov instability. |
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Keywords: | Cyclotron-Cherenkov instability Cherenkov instability dielectric-loaded coaxial waveguide microwave radiation growth rate |
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