Drift-tube influence on the MWCG operating regimes

Vladimir I. Koshelev; Michail P. Deichuly; Igor A. Chernyavskiy; Andrei A. Petkun

doi:10.1117/12.279439

3 October 1997 Drift-tube influence on the MWCG operating regimes

Vladimir I. Koshelev, Michail P. Deichuly, Igor A. Chernyavskiy, Andrei A. Petkun

Proceedings Volume 3158, Intense Microwave Pulses V; (1997) https://doi.org/10.1117/12.279439
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

A two-sectional slow-wave structure drift-tube influence on the operation regime of a three-centimeter-wavelength range multiwave Cerenkov generator has been investigated both experimentally and theoretically. Stable and powerful generation regimes have been found to correspond to the drift tube lengths at which the starting conditions calculated from a linear theory are realized only for one longitudinal electron-electromagnetic resonance. An important condition of stable generation regimes with a narrow radiation spectrum is an optimal correlation between a magnetic field and a gap between the electronbeam and the slow-wave structure. It has been shown theoretically by means of a nonlinear code that synchronization of the nearest longitudinal resonances of TM₀₁-mode by electron beam results in both increase and decrease of generation efficiency compared to the interaction of the beam and field of one longitudinal resonance.

Citation Download Citation

Vladimir I. Koshelev, Michail P. Deichuly, Igor A. Chernyavskiy, and Andrei A. Petkun "Drift-tube influence on the MWCG operating regimes", Proc. SPIE 3158, Intense Microwave Pulses V, (3 October 1997); https://doi.org/10.1117/12.279439

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