Electron injector based on thermionic RF modulated electron gun for particle accelerator applications

Zhang, Liang and Adam, Georgia and Militsyn, Boris and He, Wenlong and Cross, Adrian W. (2020) Electron injector based on thermionic RF modulated electron gun for particle accelerator applications. IEEE Transactions on Electron Devices, 67 (1). pp. 347-353. ISSN 0018-9383 (https://doi.org/10.1109/TED.2019.2954778)

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Abstract

In this article, the design and simulation of an electron injector based on a thermionic RF-modulated electron gun for particle accelerator applications is presented. The electron gun is based on a gridded thermionic cathode with the geometry based on a Pierce-type configuration. Both theory and numerical simulation were used to explore the relationship between the bunch length and the charge. The reasons for the pulse widening were also analyzed. The beam dynamics simulations showed that a minimum pulselength of 106 ps could be achieved with a bunch charge of 33 pC when the driving RF frequency was 1.5 GHz. The average transverse emittance was about 17 mm·mrad from the particle-in-cell simulations. Operating at a higher RF frequency did not significantly reduce the micro pulselength.

ORCID iDs

Zhang, Liang ORCID logoORCID: https://orcid.org/0000-0002-6317-0395, Adam, Georgia, Militsyn, Boris, He, Wenlong and Cross, Adrian W. ORCID logoORCID: https://orcid.org/0000-0001-7672-1283;
  • Item type:Article
    ID code:70703
    Dates:
    Date
    Event
    31 January 2020
    Published
    16 December 2019
    Published Online
    18 November 2019
    Accepted
    Notes:© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Keywords:radio frequency (RF) gun, thermionic electron gun, particle accelerators, Electrical Engineering. Electronics Nuclear Engineering, Physics, Electronic, Optical and Magnetic Materials, Electrical and Electronic Engineering
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:05 Dec 2019 12:11
    Last modified:26 Nov 2023 01:57
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/70703
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