Speaker
Description
Dielectrically lined waveguides are planned to be used as a passive wakefield dechirper for the electron beam at the ELBE facility of the Helmholtz-Zentrum Dresden Rossendorf. In this work we introduce the design of such a passive wakefield dechirper based on the analysis of dielectrically lined rectangular waveguides with a semi-analytical model developed at the University of Rostock. The model uses an eigenmode expansion of the electric field, which is possible since a closed analytic formulation for the eigenmodes of the dielectrically lined rectangular waveguide is available. The generality of the developed model allows for a quick calculation of the wakefields of numerous different beam types via the Green’s function method.
We also present the dechirped phase-spaces of a variety of beam distributions, as well as the theoretically possible dechirping for the ELBE beam. The author would like to thank the BMBF under contract number 05K13HR2 for funding.
