Improvement of the crossed undulator design for effective circular polarization control in X-ray FELs

Physics – Accelerator Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

The production of X-ray radiation with a high degree of circular polarization constitutes an important goal at XFEL facilities. A simple scheme to obtain circular polarization control with crossed undulators has been proposed so far. In its simplest configuration the crossed undulators consist of pair of short planar undulators in crossed position separated by an electromagnetic phase shifter. An advantage of this configuration is a fast helicity switching. A drawback is that a high degree of circular polarization (over 90%) can only be achieved for lengths of the insertion devices significantly shorter than the gain length, i.e. at output power significantly lower than the saturation power level. The obvious and technically possible extension considered in this paper, is to use a setup with two or more crossed undulators separated by phase shifters. This cascade crossed undulator scheme is distinguished, in performance, by a fast helicity switching, a high degree of circular polarization (over 95%) and a high output power level, comparable with the saturation power level in the baseline undulator at fundamental wavelength. We present feasibility study and exemplifications for the LCLS baseline in the soft X-ray regime.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Improvement of the crossed undulator design for effective circular polarization control in X-ray FELs does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Improvement of the crossed undulator design for effective circular polarization control in X-ray FELs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improvement of the crossed undulator design for effective circular polarization control in X-ray FELs will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-18779

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.