| Paper | Title | Page |
|---|---|---|
| TUPC03 | Energy Bandwidth Enhancement by Dispersion Correction at FLASH | 235 |
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This paper studies the impact of transverse dispersion on the SASE radiation power sensitivity with respect to the electron beam energy off-set. Both measurements and simulations are presented. By correcting the spurious dispersion inside the undulator region, the electron beam energy bandwidth is increased considerably, which decreases the SASE power jitter due to electron energy fluctuations. |
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| WEPC03 | Design Study of an Isochronous Bend for a Helical Radiator at the European XFEL | 496 |
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At the European XFEL circular polarized radiation in the wavelength range 0.4-1.6 nm is highly desired. An economically and technically convenient method is to utilize a long planar undulator to pre-bunch electron beam first and then pass it through a shorter and specially designed undulator to generate arbitrary polarized radiation. Between these two parts, the electrons and the radiation from the long undulator must be spatially separated by a bend. In this paper, a solution for an isochronous bend is presented considering nonlinear aberrations, which preserves theμbunching even for the 0.4 nm case. |