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Radiophysics
On transient time reduction of a 2.4 GHz relativistic traveling wave oscillator with a hollow slow wave system
E. M. Totmeninova, A. I. Klimovab, V. Yu. Koneva, O. P. Kutenkova a Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, Tomsk
b Tomsk Polytechnic University
Abstract:
The decrease in the transient time in a relativistic microwave traveling wave oscillator, in which the interaction is carried out between the relativistic electron beam and the fundamental harmonic of the forward-traveling electromagnetic wave slowed down to the speed of light in the hollow slow wave system system, has been numerically and experimentally demonstrated. It is shown that in this mode a high beam-to-wave coupling impedance up to $\approx$10 $\Omega$ is achieved, which ensures reduction of the transient time. In the experiment, a microwave peak power of 210 $\pm$ 30 MW at a frequency of 2.45 GHz in a guiding magnetic field of 0.16 T was obtained. The efficiency of the oscillator to convert the power of the electron beam into microwave power was 17 $\pm$ 3%. At the beam current pulse duration of about 50 ns the microwave pulse duration was about 20 ns and the transient time was about 22 ns.
Received: 17.11.2017
Citation:
E. M. Totmeninov, A. I. Klimov, V. Yu. Konev, O. P. Kutenkov, “On transient time reduction of a 2.4 GHz relativistic traveling wave oscillator with a hollow slow wave system”, Zhurnal Tekhnicheskoi Fiziki, 88:7 (2018), 1080–1084; Tech. Phys., 63:7 (2018), 1049–1053
Linking options:
https://www.mathnet.ru/eng/jtf5875 https://www.mathnet.ru/eng/jtf/v88/i7/p1080
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Abstract page: | 38 | Full-text PDF : | 16 |
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