Results 31 to 40 of about 1,584 (183)

Ultrafast Transitions in X‐Ray Irradiated Solids

Contributions to Plasma Physics, EarlyView.
ABSTRACT In this review, we present current developments on modeling ultrafast transitions in solids triggered by intense, atto‐ to femtosecond pulses from X‐ray free electron lasers. This specific irradiation regime requires dedicated simulation tools based on theoretical and computational methods, involving the elements of classical and quantum ...
Sebastião Antunes, Konrad J. Kapcia, Vladimir Lipp, Beata Ziaja   +3 more
wiley   +1 more source

Orientational Effects in the Low Pair Continuum of Aluminium

Contributions to Plasma Physics, EarlyView.
ABSTRACT We compare the predictions of the dynamic structure factor (DSF) of ambient polycrystalline aluminium from time‐dependent density functional theory (TDDFT) in the pair continuum regime to recent ultrahigh resolution x‐ray Thomson scattering measurements, collected at the European XFEL.
Thomas Gawne, Zhandos A. Moldabekov, Oliver S. Humphries, Motoaki Nakatsutsumi, Sebastian Schwalbe, Jan Vorberger, Ulf Zastrau, Tobias Dornheim, Thomas R. Preston   +8 more
wiley   +1 more source

Coherence properties of the European XFEL

New Journal of Physics, 2010
The European x-ray free-electron laser (XFEL) provides x-ray self-amplified spontaneous emission (SASE) FEL radiation in the wavelength range from 0.1 to 3 nm using three undulator systems. The SASE mode of operation at the European XFEL defines specific behavior of longitudinal and transverse coherence properties.
Geloni, G., Saldin, E., Samoylova, L., Schneidmiller, E., Sinn, H., Tschentscher, Th., Yurkov, M.   +6 more
openaire   +2 more sources

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

Journal 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, Tharun Reddy, Lichao Fang, Patrick Oppermann, Patrick L. Kramer, Franz-Josef Decker, Matthew Seaberg, Matthieu Chollet, Tim van Driel, Alex Halavanau, Philip Hart, Matthew Dayton, Frank Seiboth, Wenxin Wang, Carolyn Gee, Abigail Wilson, Rachel Margraf-O'Neal, Gourab Chatterjee, Ying Chen, Ilana J.P. Molesky, Yifan Wang, Sara Irvine, Jade Stanton, Cynthia Melendrez, Kelsey Banta, Silke Nelson, Vivek Thampy, Kento Katagiri, Morten Haubro, Sen Liu, Dayeeta Pal, Lauren Moghimi, Christopher Tassone, Leora Dresselhaus-Marais   +33 more
doaj   +1 more source

A Personal Perspective on Metalloprotein Structure and the Future of Macromolecular X‐Ray Crystallography

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

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

Journal 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, HyoJung Hyun, Seonghan Kim, Sun Min Hwang, Myong-Jin Kim, Dogeun Jang, Kyung Sook Kim, Jaeyong Shin, Sejin Kim, Junha Hwang, Sung Yun Lee, Eunyoung Park, Sangsoo Kim, Intae Eom, Changyong Song, Daewoong Nam   +15 more
doaj   +1 more source

A phenomenological model of the X-ray pulse statistics of a high-repetition-rate X-ray free-electron laser

IUCrJ, 2023
Many coherent imaging applications that utilize ultrafast X-ray free-electron laser (XFEL) radiation pulses are highly sensitive to fluctuations in the shot-to-shot statistical properties of the source.
Trey W. Guest, Richard Bean, Raimund Kammering, Grant van Riessen, Adrian P. Mancuso, Brian Abbey   +5 more
doaj   +1 more source

Experiencing 50 Years of Synergistic Development in Structural Biology and Enzymology

Journal of the Chinese Chemical Society, EarlyView.
Picture of Sunney Chan with Academia Sinica (AS) President James C. Liao and three Vice Presidents: Shin‐Kun Peng (left one), Tang K. Tang (right one), and Mei‐Yin Chou (right 2), taken at the annual Chinese New Year's Banquet of AS, February 7, 2025. This was likely Sunney's last appearance in formal activities of AS.
Ming‐Daw Tsai
wiley   +1 more source

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

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

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, Junha Hwang, Sejin Kim, Sung Yun Lee, Eunyoung Park, Sangsoo Kim, Changyong Song, Daewoong Nam   +7 more
wiley   +1 more source