Theoretical and experimental investigation of ac space-charge effect on gain and bandwidth of two- and three-cavity gyroklystrons with TE011 operating mode

Alexander Paul Keyer; Ludmila A. Aksenova; M. V. Agapova; Vadim E. Myasnikov; Vladimir S. Musatov; Leonid G. Popov; Evgeny V. Sokolov; Evgeny V. Zasypkin

doi:10.1117/12.218578

8 September 1995 Theoretical and experimental investigation of ac space-charge effect on gain and bandwidth of two- and three-cavity gyroklystrons with TE011 operating mode

Alexander Paul Keyer, Ludmila A. Aksenova, M. V. Agapova, Vadim E. Myasnikov, Vladimir S. Musatov, Leonid G. Popov, Evgeny V. Sokolov, Evgeny V. Zasypkin

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Proceedings Volume 2557, Intense Microwave Pulses III; (1995) https://doi.org/10.1117/12.218578
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

Both a small signal approach for ac space-charge effects on beam bunching in the gyroklystron drift tube and nonlinear self-consistent field slow-time scale ballistic theory are applied to investigate the wideband gyroklystron gain including the beam velocity spread effects. The analysis of ac space-charge effects on beam bunching, based on the parameters of existing electron guns, results in the possibility of the wideband amplification in the tremendously high gain gyroklystron using the drift tube of the approximately 20 (lambda) length or more. The test results of the IAP two-stage, 16kV, 3A, 20dB gyroklystron operating in TE₀₁₁ mode are presented and discussed. Also, the test results of the Tory TE₀₁₁ three-stage, 50kV, 14A gyroklystron are discussed. Having the first drift tube of the approximately 10 (lambda) length, this gyroklystron demonstrates the 40dB gain, the 1.3% bandwidth, and the 230kW output saturated power.

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Alexander Paul Keyer, Ludmila A. Aksenova, M. V. Agapova, Vadim E. Myasnikov, Vladimir S. Musatov, Leonid G. Popov, Evgeny V. Sokolov, and Evgeny V. Zasypkin "Theoretical and experimental investigation of ac space-charge effect on gain and bandwidth of two- and three-cavity gyroklystrons with TE011 operating mode", Proc. SPIE 2557, Intense Microwave Pulses III, (8 September 1995); https://doi.org/10.1117/12.218578

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