Production of powerful spatially coherent radiation in planar and coaxial fem exploiting two-dimensional distributed feedback

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Arzhannikov, A.V. and Cross, A.W. and Ginzburg, N.S. and He, Wenlong and Kalinin, P.V. and Konoplev, I.V. and Kuznetsov, S.A. and Peskov, N.Y. and Phelps, A.D.R. and Robertson, C.W. and Ronald, K. and Whyte, C.G. (2009) Production of powerful spatially coherent radiation in planar and coaxial fem exploiting two-dimensional distributed feedback. IEEE Transactions on Plasma Science, 37 (9). pp. 1792-1800. ISSN 1939-9375 (https://doi.org/10.1109/TPS.2009.2027326)

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Abstract

Two-dimensional distributed feedback is an effective method of producing ultrahigh-power spatially coherent radiation from an active medium, that is spatially extended along two coordinates, including relativistic electron beams with sheet and annular geometry. This paper describes the progress in the investigations of planar and coaxial free-electron masers (FEMs) based on a novel feedback mechanism. The theoretical analysis of these FEM schemes was conducted in the frame of the coupled-wave approach and 3-D simulations and agrees well with the experimental data obtained in ldquocoldrdquo and ldquohotrdquo tests. As a result, the effective transverse (azimuthal) mode selection has been demonstrated under a transverse size of about 20-25 wavelengths, and narrow-frequency multimegawatt microwave pulses have been generated in the Ka- and W-bands.

ORCID iDs

Arzhannikov, A.V., Cross, A.W. ORCID logoORCID: https://orcid.org/0000-0001-7672-1283, Ginzburg, N.S., He, Wenlong ORCID logoORCID: https://orcid.org/0000-0001-7018-0527, Kalinin, P.V., Konoplev, I.V., Kuznetsov, S.A., Peskov, N.Y., Phelps, A.D.R. ORCID logoORCID: https://orcid.org/0000-0002-1100-1012, Robertson, C.W. ORCID logoORCID: https://orcid.org/0000-0002-3552-466X, Ronald, K. ORCID logoORCID: https://orcid.org/0000-0002-8585-0746 and Whyte, C.G. ORCID logoORCID: https://orcid.org/0000-0002-5431-2443;
  • Item type:Article
    ID code:16918
    Dates:
    Date
    Event
    9 September 2009
    Published
    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.
    Subjects:Science > Physics > Plasma physics. Ionized gases
    Department:Faculty of Science > Physics
    Depositing user: Strathprints Administrator
    Date deposited:07 Apr 2010 13:50
    Last modified:11 Nov 2024 09:27
    URI:https://strathprints.strath.ac.uk/id/eprint/16918
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