A cusp electron gun for millimeter wave gyrodevices

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Donaldson, C. R. and He, W. and Cross, A.W. and Li, Fengping and Phelps, A.D.R. and Zhang, Liang and Ronald, Kevin and Robertson, Craig and Whyte, Colin and Young, Alan (2010) A cusp electron gun for millimeter wave gyrodevices. Applied Physics Letters, 96 (14). 141501. ISSN 0003-6951 (https://doi.org/10.1063/1.3374888)

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Abstract

The experimental results of a thermionic cusp electron gun, to drive millimeter and submillimeter wave harmonic gyrodevices, are reported in this paper. Using a "smooth" magnetic field reversal formed by two coils this gun generated an annular-shaped, axis-encircling electron beam with 1.5 A current, and an adjustable velocity ratio alpha of up to 1.56 at a beam voltage of 40 kV. The beam cross-sectional shape and transported beam current were measured by a witness plate technique and Faraday cup, respectively. These measured results were found to be in excellent agreement with the simulated results using the three-dimensional code MAGIC.

ORCID iDs

Donaldson, C. R. ORCID logoORCID: https://orcid.org/0000-0001-6627-2461, He, W. ORCID logoORCID: https://orcid.org/0000-0001-7018-0527, Cross, A.W. ORCID logoORCID: https://orcid.org/0000-0001-7672-1283, Li, Fengping, Phelps, A.D.R. ORCID logoORCID: https://orcid.org/0000-0002-1100-1012, Zhang, Liang ORCID logoORCID: https://orcid.org/0000-0002-6317-0395, Ronald, Kevin ORCID logoORCID: https://orcid.org/0000-0002-8585-0746, Robertson, Craig ORCID logoORCID: https://orcid.org/0000-0002-3552-466X, Whyte, Colin ORCID logoORCID: https://orcid.org/0000-0002-5431-2443 and Young, Alan ORCID logoORCID: https://orcid.org/0000-0002-3494-1242;
  • Item type:Article
    ID code:26572
    Dates:
    Date
    Event
    5 April 2010
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user:Users 1261 not found.
    Date deposited:03 Aug 2010 15:53
    Last modified:12 Dec 2024 02:31
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/26572
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