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

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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:07 Jan 2022 05:13
      Related URLs:
      URI:https://strathprints.strath.ac.uk/id/eprint/70703
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