Advanced post-acceleration methodology for pseudospark-sourced electron beam

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Zhao, J. and Yin, H. and Zhang, L. and Shu, G. and He, W. and Zhang, Q. and Phelps, A. D. R. and Cross, A. W. (2017) Advanced post-acceleration methodology for pseudospark-sourced electron beam. Physics of Plasmas, 24 (2). 023105. ISSN 1070-664X (https://doi.org/10.1063/1.4975188)

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Abstract

During its conductive phase, a pseudospark discharge is able to generate a low energy electron beam with a higher combined current density and brightness compared with electron beams formed from any other known type of electron source. In this paper, a configuration is proposed to post-accelerate an electron beam extracted from a single-gap pseudospark discharge cavity in order to achieve high quality high energy intense electron beams. The major advancement is that the triggering of the pseudospark discharge, the pseudospark discharge itself, and the post-accelerating of the electron beam are all driven by a single high voltage pulse. An electron beam with a beam current of ∼20 A, beam voltage of 40 kV, and duration of ∼180 ns has been generated using this structure. The beam energy can be adjusted through adjusting the amplitude of the voltage pulse and the operating voltage of the whole structure, which can be varied from 24 to 50 kV with an efficient triggering method under fixed gas pressure below ∼10 Pa.

ORCID iDs

Zhao, J., Yin, H. ORCID logoORCID: https://orcid.org/0000-0002-6635-9759, Zhang, L. ORCID logoORCID: https://orcid.org/0000-0002-6317-0395, Shu, G., He, W. ORCID logoORCID: https://orcid.org/0000-0001-7018-0527, Zhang, Q., Phelps, A. D. R. ORCID logoORCID: https://orcid.org/0000-0002-1100-1012 and Cross, A. W. ORCID logoORCID: https://orcid.org/0000-0001-7672-1283;
  • Item type:Article
    ID code:59731
    Dates:
    Date
    Event
    6 February 2017
    Published
    4 January 2017
    Accepted
    Notes:The following article has been published by AIP and is available at http://aip.scitation.org/doi/10.1063/1.4975188
    Subjects:Science > Physics > Plasma physics. Ionized gases
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:08 Feb 2017 11:34
    Last modified:11 Nov 2024 11:37
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/59731
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