• DocumentCode
    1464458
  • Title

    The space-charge controlled focus of an electron beam

  • Author

    Hollway, D.L.

  • Author_Institution
    Commonwealth Scientific and Industrial Research Organisation (CSIRO), National Standards Laboratory, Division of Electrotechnology, Sydney, Australia
  • Volume
    24
  • Issue
    3
  • fYear
    1962
  • fDate
    9/1/1962 12:00:00 AM
  • Firstpage
    209
  • Lastpage
    212
  • Abstract
    A table is given of solutions of the space-charge equations governing the defocusing of electron beams having circular symmetry. It is shown that.the approximation (rs/ri) = 5.9×l04{(zs/ri)(I/V1.5)0.5}2.5, where rs and ri are the spot and initial beam radii respectively, zs the screen distance, V the beam potential in volts and I the beam current in amperes, may be used for most beam design problems.
  • Keywords
    electron beams; electron optics;
  • fLanguage
    English
  • Journal_Title
    Radio Engineers, Journal of the British Institution of
  • Publisher
    iet
  • Type

    jour

  • DOI
    10.1049/jbire.1962.0089
  • Filename
    5261143
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1464458