Results 41 to 50 of about 3,983 (215)

Refinement for single-nanoparticle structure determination from low-quality single-shot coherent diffraction data

IUCrJ, 2020
With the emergence of X-ray free-electron lasers, it is possible to investigate the structure of nanoscale samples by employing coherent diffractive imaging in the X-ray spectral regime.
Toshiyuki Nishiyama, Akinobu Niozu, Christoph Bostedt, Ken R. Ferguson, Yuhiro Sato, Christopher Hutchison, Kiyonobu Nagaya, Hironobu Fukuzawa, Koji Motomura, Shin-ichi Wada, Tsukasa Sakai, Kenji Matsunami, Kazuhiro Matsuda, Tetsuya Tachibana, Yuta Ito, Weiqing Xu, Subhendu Mondal, Takayuki Umemoto, Christophe Nicolas, Catalin Miron, Takashi Kameshima, Yasumasa Joti, Kensuke Tono, Takaki Hatsui, Makina Yabashi, Kiyoshi Ueda   +25 more
doaj   +1 more source

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

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

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

Superradiant Undulator Radiation for Selective THz Control Experiments at XFELs

, 2019
The generation of frequency-tunable, narrow-bandwidth and carrier-envelope-phase stable THz pulses with fields in the MV/cm regime that can be appropriately timed to the femtosecond X-ray pulses from free-electron-lasers is of highest scientific interest.
Asgekar, Vivek, Casalbuoni, Sara, Geloni, Gianluca, Gensch, Michael, Karabekyan, Suren, Kovalev, Sergey, Serkez, Svitozar, Tanikawa, Takanori   +7 more
core   +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

Compact XFEL Schemes

, 2012
X-ray radiation is one of the most efficient tools to explore the properties of matter in multidisciplinary domains. Over the past fifty years three generations of synchrotrons have been developed delivering x-ray beams with always shorter wavelength and higher brightness to a rapidly growing users community.
d’Humières, Emmanuel, Balcou, Philippe   +1 more
openaire   +4 more sources

The scaling of exploding liquid jets under intense X-ray pulses

, 2018
A general scaling of the evolution of an exploding liquid jet under an ultra short and intense X-ray pulse from a X-ray free electron laser (XFEL) is proposed.
Ganan-Calvo, Alfonso M.
core   +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