Coherent microwave generation from a pseudospark cathode Cherenkov maser

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Yin, H. and He, W. and Robb, G. R. M. and Phelps, A. D. R. and Ronald, K. and Cross, A. W. (1999) Coherent microwave generation from a pseudospark cathode Cherenkov maser. Physical Review Special Topics: Accelerators and Beams, 2 (2). 020701. ISSN 2469-9888 (https://doi.org/10.1103/PhysRevSTAB.2.020701)

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Abstract

Experimental results are presented from the first free electron maser experiment to use a pseudospark electron source. A pulsed, 70–80 kV, 10 A electron beam of normalized brightness 10^11A(m*rad)^(−2) and current density 1kAcm^(−2) from a pseudospark electron cathode was used to produce coherent microwave radiation via a Cherenkov interaction between the electron beam and the TM01 mode of a 60-cm-long alumina-lined waveguide. A gain of 29 dB was measured with an output power of 2 kW in the frequency range 25.5–28.6 GHz. The experimental results were found to be consistent with numerical simulations of Cherenkov amplification.

ORCID iDs

Yin, H. ORCID logoORCID: https://orcid.org/0000-0002-6635-9759, He, W. ORCID logoORCID: https://orcid.org/0000-0001-7018-0527, Robb, G. R. M. ORCID logoORCID: https://orcid.org/0000-0002-3004-5926, Phelps, A. D. R. ORCID logoORCID: https://orcid.org/0000-0002-1100-1012, Ronald, K. ORCID logoORCID: https://orcid.org/0000-0002-8585-0746 and Cross, A. W. ORCID logoORCID: https://orcid.org/0000-0001-7672-1283;
  • Item type:Article
    ID code:63091
    Dates:
    Date
    Event
    17 February 1999
    Published
    Notes:This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:30 Jan 2018 10:34
    Last modified:11 Nov 2024 11:54
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/63091
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