Record Details

Title:
Nonlinear undulator tapering in conventional SASE regime at baseline electron beam parameters as a way to optimize the radiation characteristics of the European XFEL
Affiliation(s):
EuXFEL staff
Author group:
Simulation of Photon Fields
Topic:
Abstract:
We demonstrate that the output radiation characteristics of the European XFEL sources at nominal operation point can be easily made significantly better than what is currently reported in the TDRs of scientific instruments and X-ray optics. In fact, the output SASE characteristics of the baseline European XFEL have been previously optimized assuming uniform undulators at a nominal operating point of 5 kA peak current, without considering the potential of udulator tapering in the SASE regime. In order to illustrate this point, we analyze the case of an electron bunch with nominal parameters. Based on start-to-end simulations, we demonstrate that nonlinear undulator tapering allows one to achieve up to a tenfold increase in peak power and photon spectral density in the conventional SASE regime, without modification to the baseline design. The FEL code Genesis has been extensively used for these studies. In order to increase our confidence in simulation results, we cross-checked outcomes by reproducing simulations in the deep nonlinear SASE regime with tapered undulator using the code ALICE.
Imprint:
2013
Related external records:
Report number:
DESY-13-162; arXiv:1309.3149
Report type:
External Reports
Language(s):
English


Export


 Record created 2016-10-11, last modified 2019-01-30

OpenAccess:
Download fulltextPDF
External link:
Download fulltextFulltext
Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)