Beam dynamic study of a Ka-band microwave undulator and its potential drive sources

Zhang, Liang and Donaldson, Craig R. and Clarke, Jim and Easton, Jack and Robertson, Craig W. and Whyte, Colin G. and Cross, Adrian W. (2022) Beam dynamic study of a Ka-band microwave undulator and its potential drive sources. Scientific Reports, 12. 7071. ISSN 2045-2322 (https://doi.org/10.1038/s41598-022-11101-2)

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Abstract

Microwave undulators (MUs) have great potential to be an alternative solution to permanent magnet undulators in a free electron laser (FEL) when shorter undulator periods are required. In this paper, the factors that affect the choice of the high-power drive sources were studied via a Ka-band cavity-type MU with a corrugated waveguide proposed for the CompactLight X-ray FEL. They include the technology of the high-power vacuum electronic devices, the quality factor of the MU cavity that was demonstrated by prototyping a short section of the MU structure, and the beam dynamic study of the electrons’ trajectories inside the MU. It showed that at high beam energy, a high-power oscillator is feasible to be used as the drive source. At low beam energy, the maximum transverse drift distance becomes larger therefore an amplifier has to be used to minimize the drift distance of the electrons by controlling the injection phase.

  • Item type:Article
    ID code:80217
    Dates:
    Date
    Event
    29 April 2022
    Published
    18 April 2022
    Accepted
    17 January 2022
    Submitted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:19 Apr 2022 08:22
    Last modified:14 Apr 2024 00:58
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/80217
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