Author: Burke, A.T.
Paper Title Page
WEP035 Intense Sheet Electron Beam Transport in a Periodically Cusped Magnetic Field 1558
 
  • P.B. Larsen, B. Levush, J.A. Pasour
    NRL, Washington, DC, USA
  • T.M. Antonsen
    UMD, College Park, Maryland, USA
  • A.T. Burke, J.J. Petillo
    SAIC, Billerica, Massachusetts, USA
  • K.T. Nguyen
    Beam-Wave Research, Inc., Union City, USA
 
  Funding: Acknowledgements: We gratefully acknowledge funding by the Office of Naval Research.
We explore periodically cusped magnetic (PCM) fields in the regime of a Ka-Band coupled-cavity travelling wave tube (beam current = 3.5A, voltage = 19.5kV, 10:1 beam aspect ratio). We use finite-element beam optics code MICHELLE to simulate the 3-dimensional beam optics for the beam transport within a PCM field. Realistic 3-dimensional magnetic fields have been considered to determine the practicality of these designs. We present the methodology used to focus and transport a thermal beam from a shielded-cathode, high aspect-ratio electron gun.