Dresden 2014 – wissenschaftliches Programm
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BE: Beschleunigerphysik
BE 11: Accelerator Physics Poster Session
BE 11.1: Poster
Mittwoch, 2. April 2014, 17:00–19:30, P4
Corrugated and Dielectrically Lined Tubes as Dechirpers for ELBE — •Franziska Reimann1, Ursula van Rienen1, Peter Michel2, and Ulf Lehnert2 — 1Universität Rostock, Institut für Allgemeine Elektrotechnik — 2Helmholtz-Zentrum Dresden-Rossendorf
The generation of pulses in the range of sub-picoseconds at radiation sources, like the ELBE free electron laser in Dresden-Rossendorf, requires an efficient reduction of the electron beam's pulse length and energy width.
We show that both corrugated and dielectrically lined cylindrical tubes are suited to serve a passive beam dechirper, using the wakefields generated in these structures when they are passed by an electron beam ([1],[2]). The generated wakefields are dependent on the structural parameters of the dechirper, and we provide optimisations of these parameters for the dechirping requirements of the ELBE beam and demonstrate their dechirping effects on the beam using numerical simulations.
[1] Bane, Stupakov, SLAC-PUB-14925 (2012)
[2] Mosnier, Novokhatski, in: Proceedings of PAC97, Vancouver, Canada, 1997