• DocumentCode
    3198985
  • Title

    Simulation Analysis of Head-Tail Motion Caused by Electron Cloud

  • Author

    Ohmi, K. ; Flanagan, J.W. ; Fukuma, H. ; Hiramatsu, S. ; Ikeda, H. ; Tobiyama, M. ; Perevedentsev, E.

  • Author_Institution
    KEK, Oho, Tsukuba, 305-0801, Japan
  • fYear
    2005
  • fDate
    16-20 May 2005
  • Firstpage
    907
  • Lastpage
    909
  • Abstract
    Synchro-beta side band signal caused by electron cloud instability has been observed at KEK-B factory. The side-band appears above the threshold of beam size blow-up and disappears by exciting solenoid magnets which covers whole ring. The side-band is an evidence of strong head-tail instability caused by electron cloud. The side-band appears in tune spectrum with positive shift νβ+ aνs(1 < a < 2), while general strong head-tail instability shows a negative shift νβ− aνs(a > 0). We study the synchro-beta spectrum using a code, PEHTS, which simulates single bunch electron cloud instability.
  • Keywords
    Analytical models; Clouds; Electron beams; Frequency; Magnets; Motion analysis; Positrons; Production facilities; Solenoids; Synchrotrons;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the
  • Print_ISBN
    0-7803-8859-3
  • Type

    conf

  • DOI
    10.1109/PAC.2005.1590606
  • Filename
    1590606
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3198985