Results 31 to 40 of about 147,656 (247)

Determination of the Exact Orientation of Single-Crystal X-ray Optics from Its Glitch Spectrum and Modeling of Glitches for an Arbitrary Configuration

Crystals, 2021
X-ray optics made of single-crystal materials are widely used at most of the X-ray sources due to the outstanding properties. The main drawback of such optics—the diffraction losses, also known as glitches of intensity in the energy spectrum of the ...
Nataliya Klimova, Oleksandr Yefanov, Irina Snigireva, Anatoly Snigirev   +3 more
doaj   +1 more source

Structural dynamics in proteins induced by and probed with X-ray free-electron laser pulses

Nature Communications, 2020
X-ray free-electron lasers (XFELs) enable crystallographic structure determination beyond the limitations imposed upon synchrotron measurements by radiation damage.
K. Nass, A. Gorel, Malik M. Abdullah, Andrew V. Martin, M. Kloos, A. Marinelli, A. Aquila, T. Barends, F. Decker, R. Bruce Doak, L. Foucar, E. Hartmann, M. Hilpert, M. Hunter, Z. Jurek, J. Koglin, A. Kozlov, A. Lutman, G. Kovacs, C. Roome, R. Shoeman, R. Santra, H. Quiney, B. Ziaja, S. Boutet, I. Schlichting   +25 more
semanticscholar   +1 more source

UV-photochemistry of the biologically relevant thiol group and the disulfide bond: Evolution of early photoproducts from picosecond X-ray absorption spectroscopy at the sulfur K-Edge [PDF]

EPJ Web of Conferences, 2019
We report on the UV-induced photochemistry of the biologically relevant sulfur-containing thiol group and the disulfide bond in solution using picosecond X-ray absorption spectroscopy at the sulfur K-edge.
Ochmann Miguel, Hussain Abid, von Ahnen Inga, Cordones Amy A., Hong Kiryong, Lee Jae Hyuk, Ma Rory, Adamczyk Katrin, Kim Tae Kyu, Schoenlein Robert W., Vendrell Oriol, Huse Nils   +11 more
doaj   +1 more source

Operational experience with Adaptive Gain Integrating Pixel Detectors at European XFEL

Frontiers in Physics
The European X-ray Free Electron Laser (European XFEL) is a cutting-edge user facility that generates per second up to 27,000 ultra-short, spatially coherent X-ray pulses within an energy range of 0.26 to more than 20 keV.
Jolanta Sztuk-Dambietz, Vratko Rovensky, Alexander Klujev, Torsten Laurus, Ulrich Trunk, Karim Ahmed, Olivier Meyer, Johannes Möller, Andrea Parenti, Natascha Raab, Roman Shayduk, Marcin Sikorski, Gabriele Ansaldi, Ulrike Bösenberg, Lopez M. Luis, Astrid Muenich, Thomas R. Preston, Philipp Schmidt, Stephan Stern, Richard Bean, Anders Madsen, Luca Gelisio, Steffen Hauf, Patrick Gessler, Krzysztof Wrona, Heinz Graafsma, Heinz Graafsma, Monica Turcato   +27 more
doaj   +1 more source

Suppressing Diffraction-Related Intensity Losses in Transmissive Single-Crystal X-ray Optics

Crystals, 2021
The highest-quality X-ray optics can be made of single-crystal materials such as silicon, germanium, or, even better, diamond. Unfortunately, such X-ray optics have one drawback: diffraction losses or the “glitch effect”.
Nataliya Klimova, Irina Snigireva, Anatoly Snigirev, Oleksandr Yefanov   +3 more
doaj   +1 more source

MHz X-ray photon correlation spectroscopy using an acoustic levitator at the European XFEL

Journal of Synchrotron Radiation
The structural and dynamical properties of soft-matter systems play an important role in crystallization and nucleation theory. Despite their significance, the dynamical properties are still poorly understood because of experimental constraints and the ...
Wonhyuk Jo, Johannes Möller, Jörg Hallmann, James Wrigley, Jan-Etienne Pudell, Ulrike Boesenberg, Felix Brausse, Angel Rodriguez-Fernandez, Alexey Zozulya, Roman Shayduk, Anders Madsen   +10 more
doaj   +1 more source

Using diffraction losses of X-rays in a single crystal for determination of its lattice parameters as well as for monochromator calibration

Journal of Synchrotron Radiation, 2022
A way has been developed to measure the unit-cell parameters of a single crystal just from an energy scan with X-rays, even when the exact energy of the X-rays is not well defined due to an error in the pitch angle of the monochromator.
Nataliya Klimova, Irina Snigireva, Anatoly Snigirev, Oleksandr Yefanov   +3 more
doaj   +1 more source

Operation of Photo Electron Spectrometers for Non-Invasive Photon Diagnostics at the European X-Ray Free Electron Laser

Applied Sciences
Angle-resolved photoelectron spectrometers with microchannel plate detectors and fast digitizer electronics are versatile and powerful devices for providing non-invasive single-shot photon diagnostics at a MHz repetition rate X-ray free-electron lasers ...
Joakim Laksman, Florian Dietrich, Theophilos Maltezopoulos, Jia Liu, Danilo Enoque Ferreira de Lima, Natalia Gerasimova, Ivars Karpics, Naresh Kujala, Philipp Schmidt, Suren Karabekyan, Svitozar Serkez, Jan Grünert   +11 more
doaj   +1 more source

Novel correction procedure for compensating thermal contraction errors in the measurement of the magnetic field of superconducting undulator coils in a liquid helium cryostat

Journal of Synchrotron Radiation
Superconducting undulators (SCUs) can offer a much higher on-axis undulator field than state-of-the-art cryogenic permanent-magnet undulators with the same period and vacuum gap.
Barbara Marchetti, Johann Baader, Sara Casalbuoni, Grigory Yakopov, Mikhail Yakopov   +4 more
doaj   +1 more source

X-ray photon correlation spectroscopy of protein dynamics at nearly diffraction-limited storage rings

IUCrJ, 2019
This study explores the possibility of measuring the dynamics of proteins in solution using X-ray photon correlation spectroscopy (XPCS) at nearly diffraction-limited storage rings (DLSRs). We calculate the signal-to-noise ratio (SNR) of XPCS experiments
Johannes Möller, Michael Sprung, Anders Madsen, Christian Gutt   +3 more
doaj   +1 more source