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Helically corrugated waveguide gyrotron traveling wave amplifier using a thermionic cathode electron gun

Cross, A.W. and He, W. and Phelps, A.D.R. and Ronald, K. and Whyte, C.G. and Young, A.R. and Robertson, Craig and Rafferty, E.G. (2007) Helically corrugated waveguide gyrotron traveling wave amplifier using a thermionic cathode electron gun. Applied Physics Letters, 90 (25). p. 253501. ISSN 0003-6951

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Abstract

Experimental operation of a gyrotron traveling wave amplifier with a helically corrugated waveguide using a thermionic cathode electron gun is presented. The coupling between the second harmonic cyclotron mode of the gyrating electron beam and the radiation occurred in the region of near infinite phase velocity over a broad frequency band. With an axis-encircling electron beam of pitch factor of ∼ 1.2, energy of 185 keV, and current of 6.0 A, the amplifier achieved an output power of 220 kW, saturated gain of 24 dB, saturated bandwidth of 8.4 to 10.4 GHz, and an interaction efficiency of 20%.

Item type: Article
ID code: 17162
Notes: Strathprints' policy is to record up to 8 authors per publication, plus any additional authors based at the University of Strathclyde. More authors may be listed on the official publication than appear in the Strathprints' record.
Keywords: gyrotron traveling wave amplifier, helically corrugatedwaveguide, thermionic cathode electron gun, harmonic cyclotron mode, Physics, Physics and Astronomy (miscellaneous)
Subjects: Science > Physics
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 28 Apr 2010 14:37
    Last modified: 05 Sep 2014 01:40
    URI: http://strathprints.strath.ac.uk/id/eprint/17162

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