scholarly journals Time-resolved resonant soft x-ray diffraction with free-electron lasers: Femtosecond dynamics across the Verwey transition in magnetite

2011 ◽  
Vol 98 (18) ◽  
pp. 182504 ◽  
Author(s):  
N. Pontius ◽  
T. Kachel ◽  
C. Schüßler-Langeheine ◽  
W. F. Schlotter ◽  
M. Beye ◽  
...  
Keyword(s):  
Free Electron ◽  
Free Electron Lasers ◽  
X Ray Diffraction ◽  
Verwey Transition ◽  
Time Resolved ◽  
X Ray ◽  
Femtosecond Dynamics

Crystal plasticity in shock-compressed hcp-iron

2021 ◽  
Author(s):  
Sébastien Merkel ◽  
Sovanndara Hok ◽  
Cynthia Bolme ◽  
Wendy Mao ◽  
Arianna Gleason
Keyword(s):  
Free Electron ◽  
Deformation Mechanisms ◽  
Free Electron Lasers ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hexagonal Close Packed ◽  
Planetary Cores ◽  
Materials Behavior ◽  
Optical Laser

<p>Iron is a key constituent of planetary core and an important technological material. Here, we combine <em>in situ</em> ultrafast X-ray diffraction at free electron lasers with optical-laser-induced shock compression experiments on polycrystalline Fe to study the plasticity of hexagonal close-packed (hcp)-Fe under extreme loading states. We identifiy the deformation mechanisms that controls the Fe microstructures and  observe a significant time-evolution of stress over the few nanoseconds of the experiments. These observations illustrate how ultrafast plasticity studies can reveal distinctive materials behavior under extreme loading states and will help constraining the pressure, temperature, and strain rate dependence of materials behavior in planetary cores.</p>

scholarly journals Time-Resolved Macromolecular Crystallography at Pulsed X-ray Sources

2019 ◽  
Vol 20 (6) ◽  
pp. 1401 ◽  
Author(s):  
Marius Schmidt
Keyword(s):  
Structural Biology ◽  
Free Electron ◽  
Reaction Dynamics ◽  
X Rays ◽  
Free Electron Lasers ◽  
Macromolecular Crystallography ◽  
Time Resolved ◽  
X Ray ◽  
Methodological Aspects

The focus of structural biology is shifting from the determination of static structures to the investigation of dynamical aspects of macromolecular function. With time-resolved macromolecular crystallography (TRX), intermediates that form and decay during the macromolecular reaction can be investigated, as well as their reaction dynamics. Time-resolved crystallographic methods were initially developed at synchrotrons. However, about a decade ago, extremely brilliant, femtosecond-pulsed X-ray sources, the free electron lasers for hard X-rays, became available to a wider community. TRX is now possible with femtosecond temporal resolution. This review provides an overview of methodological aspects of TRX, and at the same time, aims to outline the frontiers of this method at modern pulsed X-ray sources.

scholarly journals Few-femtosecond time-resolved measurements of X-ray free-electron lasers

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
C. Behrens ◽  
F.-J. Decker ◽  
Y. Ding ◽  
V. A. Dolgashev ◽  
J. Frisch ◽  
...  
Keyword(s):  
Free Electron ◽  
Free Electron Lasers ◽  
Time Resolved ◽  
X Ray ◽  
Time Resolved Measurements

scholarly journals Mixing injector enables time-resolved crystallography with high hit rate at X-ray free electron lasers

2016 ◽  
Vol 3 (5) ◽  
pp. 054301 ◽  
Author(s):  
George D. Calvey ◽  
Andrea M. Katz ◽  
Chris B. Schaffer ◽  
Lois Pollack
Keyword(s):  
Free Electron ◽  
Free Electron Lasers ◽  
Time Resolved ◽  
X Ray ◽  
Hit Rate

scholarly journals Advances in Diffraction Studies of Light-Induced Transient Species in Molecular Crystals and Selected Complementary Techniques

Crystals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1345
Author(s):  
Krystyna A. Deresz ◽  
Piotr Łaski ◽  
Radosław Kamiński ◽  
Katarzyna N. Jarzembska
Keyword(s):  
Free Electron Lasers ◽  
Transient Species ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray ◽  
Recent Developments ◽  
Complementary Techniques ◽  
X Ray Absorption ◽  
Serial Femtosecond Crystallography ◽  
Major Emphasis

The review provides a summary of the current methods of tracing photoexcitation processes and structural dynamics in the solid state, putting major emphasis on the X-ray diffraction techniques (time-resolved Laue diffraction on synchrotron sources and time-resolved serial femtosecond crystallography on X-ray free-electron lasers). The recent developments and nowadays experimental possibilities in the field are discussed along with the data processing and analysis approaches, and illustrated with some striking literature examples of the respective successful studies. Selected complementary methods, such as ultrafast electron diffraction or time-resolved X-ray absorption spectroscopy, are briefly presented.

scholarly journals Self-synchronized and cost-effective time-resolved measurements at x-ray free-electron lasers with femtosecond resolution

2022 ◽  
Vol 4 (1) ◽  
Author(s):  
Philipp Dijkstal ◽  
Alexander Malyzhenkov ◽  
Paolo Craievich ◽  
Eugenio Ferrari ◽  
Romain Ganter ◽  
...  
Keyword(s):  
Free Electron ◽  
Cost Effective ◽  
Free Electron Lasers ◽  
Time Resolved ◽  
X Ray ◽  
Effective Time ◽  
Time Resolved Measurements

scholarly journals First Experiments in Structural Biology at the European X-ray Free-Electron Laser

2020 ◽  
Vol 10 (10) ◽  
pp. 3642 ◽  
Author(s):  
Grant Mills ◽  
Richard Bean ◽  
Adrian P. Mancuso
Keyword(s):  
Structural Biology ◽  
Structure Determination ◽  
Free Electron ◽  
Free Electron Laser ◽  
Pulse Frequency ◽  
Free Electron Lasers ◽  
Time Resolved ◽  
New Era ◽  
X Ray ◽  
Rapid Pulse

Ultrabright pulses produced in X-ray free-electron lasers (XFELs) offer new possibilities for industry and research, particularly for biochemistry and pharmaceuticals. The unprecedented brilliance of these next-generation sources enables structure determination from sub-micron crystals as well as radiation-sensitive proteins. The European X-Ray Free-Electron Laser (EuXFEL), with its first light in 2017, ushered in a new era for ultrabright X-ray sources by providing an unparalleled megahertz-pulse repetition rate, with orders of magnitude more pulses per second than previous XFEL sources. This rapid pulse frequency has significant implications for structure determination; not only will data collection be faster (resulting in more structures per unit time), but experiments requiring large quantities of data, such as time-resolved structures, become feasible in a reasonable amount of experimental time. Early experiments at the SPB/SFX instrument of the EuXFEL demonstrate how such closely-spaced pulses can be successfully implemented in otherwise challenging experiments, such as time-resolved studies.

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