X-Ray Free Electron Lasers [PDF]
In a free-electron laser (FEL) the lasing medium is a high-energy beam of electrons flying with relativistic speed through a periodic magnetic field. The interaction between the synchrotron radiation that is produced and the electrons in the beam induces a periodic bunching of the electrons, greatly increasing the intensity of radiation produced at a ...
Feldhaus, J. +2 more
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SwissFEL: The Swiss X-ray Free Electron Laser
The SwissFEL X-ray Free Electron Laser (XFEL) facility started construction at the Paul Scherrer Institute (Villigen, Switzerland) in 2013 and will be ready to accept its first users in 2018 on the Aramis hard X-ray branch.
Christopher J. Milne +114 more
doaj +3 more sources
Superconducting undulator activities at the European X-ray Free-Electron Laser Facility
For more than 5 years, superconducting undulators (SCUs) have been successfully delivering X-rays in storage rings. The European X-Ray Free-Electron Laser Facility (XFEL) plans to demonstrate the operation of SCUs in X-ray free-electron lasers (FELs ...
Sara Casalbuoni +34 more
doaj +1 more source
An ultra-compact x-ray free-electron laser [PDF]
Abstract In the field of beam physics, two frontier topics have taken center stage due to their potential to enable new approaches to discovery in a wide swath of science. These areas are: advanced, high gradient acceleration techniques, and x-ray free electron lasers (XFELs).
Rosenzweig, J. B +36 more
openaire +5 more sources
Microsecond hydrodynamic interactions in dense colloidal dispersions probed at the European XFEL
Many soft-matter systems are composed of macromolecules or nanoparticles suspended in water. The characteristic times at intrinsic length scales of a few nanometres fall therefore in the microsecond and sub-microsecond time regimes.
Francesco Dallari +23 more
doaj +1 more source
Pump-probe X-ray holographic imaging of laser-induced cavitation bubbles with femtosecond FEL pulses
Cavitation bubbles show many nonlinear characteristics of liquid and gas phase. Here the authors demonstrate coherent diffractive imaging of cavitation bubble using infrared pump and XFEL probe and discuss the formation and evolution of the bubbles.
M. Vassholz +20 more
doaj +1 more source
Ultrafast orbital tomography of a pentacene film using time-resolved momentum microscopy at a FEL
Ultrafast pulses are useful to investigate the electron dynamics in excited atoms, molecules and other complex systems. Here, the authors measure transient photoelectron momentum maps following the free-electron laser pulse-induced ionization of a ...
Kiana Baumgärtner +21 more
doaj +1 more source
Using low dose x-ray speckle visibility spectroscopy to study dynamics of soft matter samples
We demonstrate the successful application of x-ray speckle visibility spectroscopy (XSVS) experiments to study the dynamics of radiation sensitive, biological samples with unprecedented small x-ray doses of 45 Gy and below.
Johannes Möller +12 more
doaj +1 more source
Stability of Bragg reflectors under megahertz heat load at XFELs
Modern X-ray free-electron laser (XFEL) sources can deliver photon pulses with millijoule pulse energies and megahertz repetition rate. As shown by the simulations in this work, for particular cases the dynamical heat load effects for Bragg reflectors ...
Immo Bahns +3 more
doaj +1 more source
First Experiments in Structural Biology at the European X-ray Free-Electron Laser
Ultrabright pulses produced in X-ray free-electron lasers (XFELs) offer new possibilities for industry and research, particularly for biochemistry and pharmaceuticals.
Grant Mills +2 more
doaj +1 more source

