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Lau, T.

Paper Title Page
TPAT008 Numerical Dispersion Error Reduction in EM Calculations for Accelerators 1114
 
  • T. Lau, E. Gjonaj, T. Weiland
    TEMF, Darmstadt
  • I. Zagorodnov
    DESY, Hamburg
  
  Funding: Deutsches Elektronen-Synchrotron DESY

In this contribution novel numerical algorithms with no dispersion along the beam axis are investigated. This property is of interest for the long-time calculation of electromagnetic fields in accelerators. Instead of increasing the spatial stencil of the Yee scheme the compared methods modify the time-stepping algorithm.The results are compared on several test examples. As a practical application the electromagnetic field of a very short bunch inside a cavity is calculated.