Results 61 to 70 of about 4,343 (231)

Structural Evolution of Antigorite by High‐Velocity Impacts

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Serpentine is a major hydrous mineral present in hydrous asteroids that have evolved through planetary impacts. Understanding its dynamic behavior is essential to elucidate the redistribution and retention of water during high‐velocity impact processes. The shock response of antigorite was examined at pressures up to 106 GPa using laser‐driven
Yuhei Umeda   +17 more
wiley   +1 more source

Quantifying resolution in pink‐beam dark‐field X‐ray microscopy: experiments and simulations

open access: yesJournal of Applied Crystallography, Volume 59, Issue 4, Page 1139-1152, August 2026.
A quantitative comparison between pink‐beam and monochromatic dark‐field X‐ray microscopy (DFXM) shows that pink‐beam DFXM offers up to two orders of magnitude higher flux and improved signal‐to‐noise ratio for time‐resolved imaging, at the expense of an approximately tenfold loss in angular resolution.
M. La Bella   +6 more
wiley   +1 more source

Neue Einblicke in ein Schlüsselmaterial für Planetenphysik, Fusion und Materialforschung: Flüssiger Kohlenstoff

open access: yesPhysik in unserer Zeit, Volume 57, Issue 4, Page 154-161, July 2026.
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

Improved image reconstruction in coherent diffraction imaging using self‐seeded XFEL pulses

open access: yesJournal of Synchrotron Radiation, Volume 33, Issue 4, Page 904-912, July 2026.
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

Beam loss study for the implementation of corrugated structure at the European XFEL [PDF]

open access: green, 2022
Junjie Guo   +7 more
openalex   +1 more source

High-resolution in situ characterization of laser powder bed fusion via transmission X-ray microscopy at X-ray free-electron lasers

open access: yesJournal of Synchrotron Radiation
In this work, we describe the instrumentation used to perform the first operando transmission X-ray microscopy (TXM) and simultaneous X-ray diffraction of laser melting simulating laser powder bed fusion on the XCS instrument at the Linac Coherent Light ...
Zane Taylor   +33 more
doaj   +1 more source

Development of the Nanobeam X-ray Experiments instrument at PAL-XFEL

open access: yesJournal of Synchrotron Radiation
A Nanobeam X-ray Experiments (NXE) instrument was developed and installed at the hard X-ray beamline of the Pohang Accelerator Laboratory X-ray Free Electron Laser.
Jangwoo Kim   +15 more
doaj   +1 more source

The European XFEL - Status and Commissioning

open access: yes, 2016
Proceedings of the 25th Russian Particle Accelerator Conf., RuPAC2016, St.
openaire   +2 more sources

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