Results 81 to 90 of about 18,392 (242)
Journal of the Chinese Chemical Society, EarlyView.While X‐ray crystallography has been the primary method for determining the structures of metalloproteins, cryoEM has taken over this role, illustrated by [4Fe4S]‐cluster containing proteins deposited in the Protein Data Bank. What will be the role for X‐ray crystallography as cryoEM and machine learning methods dominate the initial structural analysis?
Douglas C. Rees
wiley +1 more source
Emergence of anomalous dynamics in soft matter probed at the European XFEL
Proceedings of the National Academy of Sciences of the United States of America, 2020 Significance The European XFEL is a hard X-ray Free-Electron Laser (FEL) with pulse repetition rates in the megahertz regime. Thus, sample dynamics in the microsecond and submicrosecond regime can be accessed by means of X-ray photon correlation ...
F. Lehmkühler +18 more
semanticscholar +1 more source
Cooperative effects in nuclear excitation with coherent x-ray light
, 2012 The interaction between super-intense coherent x-ray light and nuclei is studied theoretically. One of the main difficulties with driving nuclear transitions arises from the very narrow nuclear excited state widths which limit the coupling between laser ...
+21 more
core +1 more source
Numerical simulations of X-rays Free Electron Lasers (XFEL) [PDF]
, 2014 We study a nonlinear Schr\"odinger equation which arises as an effective single particle model in X-ray Free Electron Lasers (XFEL). This equation appears as a first-principles model for the beam-matter interactions that would take place in an XFEL ...
Antonelli, Paolo +3 more
core +2 more sources
European XFEL Commissioing Experience
, 2017 2017 TESLA Technology Collaboration, TTC 2017, East Lansing, DESY, USA, 20 Feb 2017 - 24 Feb ...
Weise, Hans, Decking, Winfried
openaire +2 more sources
Physik in unserer Zeit, EarlyView.Mit Hilfe der ultrahellen Röntgenpulse des European XFEL und einem speziellen Hochenergielaser konnte die Struktur von flüssigem Kohlenstoff bei Drücken von über einer Million Atmosphären und Temperaturen von etwa 7000 K bestimmt werden. Dieser Ansatz offenbarte eine komplexe Flüssigkeit mit einer wasserähnlichen Struktur und im Mittel vier ...
Dominik Kraus, Ulf Zastrau
wiley +1 more source
XFEL Crystal Structures of Peroxidase Compound II
Angewandte Chemie, 2021 Oxygen activation in all heme enzymes requires the formation of high oxidation states of iron, usually referred to as ferryl heme. There are two known intermediates: Compound I and Compound II. The nature of the ferryl heme—and whether it is an FeIV=O or
H. Kwon +21 more
semanticscholar +1 more source
3D atomic structure from a single X-ray free electron laser pulse
Nature CommunicationsX-ray Free Electron Lasers (XFEL) are cutting-edge pulsed x-ray sources, whose extraordinary pulse parameters promise to unlock unique applications. Several new methods have been developed at XFELs; however, no methods are known, which allow ab initio ...
Gábor Bortel +12 more
doaj +1 more source
Single-shot 3D coherent diffractive imaging of core-shell nanoparticles with elemental specificity. [PDF]
, 2018 We report 3D coherent diffractive imaging (CDI) of Au/Pd core-shell nanoparticles with 6.1 nm spatial resolution with elemental specificity. We measured single-shot diffraction patterns of the nanoparticles using intense x-ray free electron laser pulses.
Dias, Carlos Sato Baraldi +31 more
core +3 more sources
Improved image reconstruction in coherent diffraction imaging using self‐seeded XFEL pulses
Journal of Synchrotron Radiation, EarlyView.This study demonstrates that the superior coherence of narrow‐bandwidth self‐seeded X‐ray pulses significantly improves the quality and reliability of image reconstruction in coherent diffraction imaging compared with conventional broad‐bandwidth SASE pulses.
Jaeyong Shin +7 more
wiley +1 more source