scholarly journals The European X-ray Free-Electron Laser: toward an ultra-bright, high repetition-rate x-ray source

2015 ◽  
Vol 3 ◽  
Author(s):  
M. Altarelli
Keyword(s):  
Free Electron ◽  
Free Electron Laser ◽  
Linear Accelerator ◽  
High Repetition Rate ◽  
Modes Of Operation ◽  
X Ray ◽  
High Repetition ◽  
The Status ◽  
Scientific Results ◽  
Under Construction

The status of the European X-ray Free-Electron Laser (European XFEL), under construction near Hamburg, Germany, is described. The start of operations of the LCLS at SLAC and of SACLA in Japan has already produced impressive scientific results. The European XFEL facility is powered by a 17.5 GeV superconducting linear accelerator that, compared to these two operating facilities, will generate two orders of magnitude more pulses per second, up to 27 000. It can therefore support modes of operation switching the beam up to 30 times per second among three different experiments, providing each of them with thousands of pulses per second. The scientific possibilities opened up by these capabilities are briefly described, together with the current instrumental developments (in optics, detectors, lasers, etc.) that are necessary to implement this program.

scholarly journals High Repetition Rate and Coherent Free-Electron Laser in the X-Rays Range Tailored for Linear Spectroscopy

Instruments ◽  
2019 ◽  
Vol 3 (3) ◽  
pp. 47 ◽  
Author(s):  
Vittoria Petrillo ◽  
Michele Opromolla ◽  
Alberto Bacci ◽  
Illya Drebot ◽  
Giacomo Ghiringhelli ◽  
...  
Keyword(s):  
Free Electron ◽  
Repetition Rate ◽  
Free Electron Laser ◽  
Extreme Ultraviolet ◽  
High Harmonic ◽  
High Repetition Rate ◽  
X Rays ◽  
Regenerative Amplifier ◽  
X Ray ◽  
High Repetition

Fine time-resolved analysis of matter—i.e., spectroscopy and photon scattering—in the linear response regime requires fs-scale pulsed, high repetition rate, fully coherent X-ray sources. A seeded Free Electron Laser (FEL) driven by a Linac based on Super Conducting cavities, generating 10 8 – 10 10 coherent photons at 2–5 keV with 0.2–1 MHz of repetition rate, can address this need. Three different seeding schemes, reaching the X-ray range, are described hereafter. The first two are multi-stage cascades upshifting the radiation frequency by a factor of 10–30 starting from a seed represented by a coherent flash of extreme ultraviolet light. This radiation can be provided either by the High Harmonic Generation of an optical laser or by an FEL Oscillator operating at 12–14 nm. The third scheme is a regenerative amplifier working with X-ray mirrors. The whole chain of the X-ray generation is here described by means of start-to-end simulations.

scholarly journals X-ray spectrometer based on a bent diamond crystal for high repetition rate free-electron laser applications

2017 ◽  
Vol 25 (3) ◽  
pp. 2852 ◽  
Author(s):  
Ulrike Boesenberg ◽  
Liubov Samoylova ◽  
Thomas Roth ◽  
Diling Zhu ◽  
Sergey Terentyev ◽  
...  
Keyword(s):  
Free Electron ◽  
Repetition Rate ◽  
Free Electron Laser ◽  
Diamond Crystal ◽  
High Repetition Rate ◽  
Laser Applications ◽  
X Ray ◽  
High Repetition

scholarly journals Structural biology at the European X-ray free-electron laser facility

2014 ◽  
Vol 369 (1647) ◽  
pp. 20130311 ◽  
Author(s):  
Massimo Altarelli ◽  
Adrian P. Mancuso
Keyword(s):  
Structural Biology ◽  
Single Molecule ◽  
Free Electron ◽  
Free Electron Laser ◽  
Ultrashort Pulses ◽  
High Repetition Rate ◽  
X Rays ◽  
X Ray ◽  
Laser Facility ◽  
Under Construction

The European X-ray free-electron laser (XFEL) facility, under construction in the Hamburg region, will provide high-peak brilliance (greater than 10 33 photons s −1 mm −2 mrad −2 per 0.1% BW), ultrashort pulses (approx. 10 fs) of X-rays, with a high repetition rate (up to 27 000 pulses s −1 ) from 2016 onwards. The main features of this exceptional X-ray source, and the instrumentation developments necessary to exploit them fully, for application to a variety of scientific disciplines, are briefly summarized. In the case of structural biology, that has a central role in the scientific case of this new facility, the instruments and ancillary laboratories that are being planned and built within the baseline programme of the European XFEL and by consortia of users are also discussed. It is expected that the unique features of the source and the advanced features of the instrumentation will allow operation modes with more efficient use of sample materials, faster acquisition times, and conditions better approaching feasibility of single molecule imaging.

scholarly journals High average power 88  W OPCPA system for high-repetition-rate experiments at the LCLS x-ray free-electron laser

2019 ◽  
Vol 44 (5) ◽  
pp. 1257 ◽  
Author(s):  
Katalin Mecseki ◽  
Matthew K. R. Windeler ◽  
Alan Miahnahri ◽  
Joseph S. Robinson ◽  
James M. Fraser ◽  
...  
Keyword(s):  
Free Electron ◽  
Repetition Rate ◽  
Free Electron Laser ◽  
Average Power ◽  
High Repetition Rate ◽  
High Average Power ◽  
X Ray ◽  
High Repetition
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