Corrugated structure insertion for extending the SASE bandwidth up to 3% at the European XFEL

Abstract

The usage of x-ray free electron laser (XFEL) in femtosecond nanocrystallography involves sequential illumination of many small crystals of arbitrary orientation. Hence a wide radiation bandwidth will be useful in order to obtain and to index a larger number of Bragg peaks used for determination of the crystal orientation. Considering the baseline configuration of the European XFEL in Hamburg, and based on beam dynamics simulations, we demonstrate here that the usage of corrugated structures allows for a considerable increase in radiation bandwidth. Data collection with a 3% bandwidth, a few microjoule radiation pulse energy, a few femtosecond pulse duration, and a photon energy of 5.4 keV is possible. For this study we have developed an analytical modal representation of the short-range wake function of the flat corrugated structures for arbitrary offsets of the source and the witness particles.

arXiv comment29 pages, 17 figures

References in corpus (4)

• Impedance of a Rectangular Beam Tube with Small Corrugations
• A Semi-Analytical Modelling of Multistage Bunch Compression with Collective Effects
• Dechirper Wakefields for Short Bunches
• Fast Particle Tracking With Wake Fields

Cited by in corpus (5)

• Generation of large-bandwidth x-ray free electron laser with Evolutionary Many-Objective Optimization Algorithm
• Bandwidth broadening of X-ray free electron laser pulses with the natural gradient of planar undulator
• Longitudinal phase space diagnostics with a nonmovable corrugated passive wakefield streaker
• Stimulated resonant inelastic x-ray scattering with chirped, broadband pulses
• Measurement of undulator section wakefield at the SXFEL test facility