Results 1 to 10 of about 71,191 (160)

Single-shot X-ray absorption spectroscopy at X-ray free electron lasers [PDF]

Scientific Reports, 2023
X-ray Absorption Spectroscopy (XAS) is a widely used X-ray diagnostic method for studying electronic and structural properties of matter. At first glance, the relatively narrow bandwidth and the highly fluctuating spectral structure of X-ray Free ...
Marion Harmand, Marco Cammarata, Matthieu Chollet, Andrew G. Krygier, Henrik T. Lemke, Diling Zhu   +5 more
doaj   +5 more sources

Structural enzymology using X-ray free electron lasers [PDF]

Structural Dynamics, 2017
Mix-and-inject serial crystallography (MISC) is a technique designed to image enzyme catalyzed reactions in which small protein crystals are mixed with a substrate just prior to being probed by an X-ray pulse. This approach offers several advantages over
Christopher Kupitz, Jose L. Olmos Jr., Mark Holl, Lee Tremblay, Kanupriya Pande, Suraj Pandey, Dominik Oberthür, Mark Hunter, Mengning Liang, Andrew Aquila, Jason Tenboer, George Calvey, Andrea Katz, Yujie Chen, Max O. Wiedorn, Juraj Knoska, Alke Meents, Valerio Majriani, Tyler Norwood, Ishwor Poudyal, Thomas Grant, Mitchell D. Miller, Weijun Xu, Aleksandra Tolstikova, Andrew Morgan, Markus Metz, Jose M. Martin-Garcia, James D. Zook, Shatabdi Roy-Chowdhury, Jesse Coe, Nirupa Nagaratnam, Domingo Meza, Raimund Fromme, Shibom Basu, Matthias Frank, Thomas White, Anton Barty, Sasa Bajt, Oleksandr Yefanov, Henry N. Chapman, Nadia Zatsepin, Garrett Nelson, Uwe Weierstall, John Spence, Peter Schwander, Lois Pollack, Petra Fromme, Abbas Ourmazd, George N. Phillips Jr., Marius Schmidt   +49 more
doaj   +8 more sources

Features and futures of X-ray free-electron lasers [PDF]

The Innovation, 2021
Linear accelerator-based free-electron lasers (FELs) are the leading source of fully coherent X-rays with ultra-high peak powers and ultra-short pulse lengths.
Nanshun Huang, Haixiao Deng, Bo Liu, Dong Wang, Zhentang Zhao   +4 more
doaj   +2 more sources

Simultaneous bright- and dark-field X-ray microscopy at X-ray free electron lasers [PDF]

Scientific Reports, 2023
The structures, strain fields, and defect distributions in solid materials underlie the mechanical and physical properties across numerous applications.
Leora E. Dresselhaus-Marais, Bernard Kozioziemski, Theodor S. Holstad, Trygve Magnus Ræder, Matthew Seaberg, Daewoong Nam, Sangsoo Kim, Sean Breckling, Sungwook Choi, Matthieu Chollet, Philip K. Cook, Eric Folsom, Eric Galtier, Arnulfo Gonzalez, Tais Gorkhover, Serge Guillet, Kristoffer Haldrup, Marylesa Howard, Kento Katagiri, Seonghan Kim, Sunam Kim, Sungwon Kim, Hyunjung Kim, Erik Bergbäck Knudsen, Stephan Kuschel, Hae Ja Lee, Chuanlong Lin, R. Stewart McWilliams, Bob Nagler, Martin Meedom Nielsen, Norimasa Ozaki, Dayeeta Pal, Ricardo Pablo Pedro, Alison M. Saunders, Frank Schoofs, Toshimori Sekine, Hugh Simons, Tim van Driel, Bihan Wang, Wenge Yang, Can Yildirim, Henning Friis Poulsen, Jon H. Eggert   +42 more
doaj   +2 more sources

Harmonic lasing in x-ray free electron lasers [PDF]

Physical Review Special Topics. Accelerators and Beams, 2012
Harmonic lasing in a free electron laser with a planar undulator (under the condition that the fundamental frequency is suppressed) might be a cheap and efficient way of extension of wavelength ranges of existing and planned x-ray free electron laser ...
E. A. Schneidmiller, M. V. Yurkov
doaj   +3 more sources

High efficiency, multiterawatt x-ray free electron lasers [PDF]

Physical Review Accelerators and Beams, 2016
In this paper we present undulator magnet tapering methods for obtaining high efficiency and multiterawatt peak powers in x-ray free electron lasers (XFELs), a key requirement for enabling 3D atomic resolution single molecule imaging and nonlinear x-ray ...
C. Emma, K. Fang, J. Wu, C. Pellegrini
doaj   +3 more sources

Ultrashort Free-Electron Laser X-ray Pulses [PDF]

Applied Sciences, 2017
For the investigation of processes happening on the time scale of the motion of bound electrons, well-controlled X-ray pulses with durations in the few-femtosecond and even sub-femtosecond range are a necessary prerequisite.
Wolfram Helml, Ivanka Grguraš, Pavle N. Juranić, Stefan Düsterer, Tommaso Mazza, Andreas R. Maier, Nick Hartmann, Markus Ilchen, Gregor Hartmann, Luc Patthey, Carlo Callegari, John T. Costello, Michael Meyer, Ryan N. Coffee, Adrian L. Cavalieri, Reinhard Kienberger   +15 more
doaj   +7 more sources

Is radiation damage the limiting factor in high-resolution single particle imaging with X-ray free-electron lasers? [PDF]

Structural Dynamics, 2019
The prospect of single particle imaging with atomic resolution is one of the scientific drivers for the development of X-ray free-electron lasers. The assumption since the beginning has been that damage to the sample caused by intense X-ray pulses is one
C. Östlin, N. Timneanu, C. Caleman, A. V. Martin   +3 more
doaj   +2 more sources

Wavefront sensing at X-ray free-electron lasers. [PDF]

J Synchrotron Radiat, 2019
Here a direct comparison is made between various X-ray wavefront sensing methods with application to optics alignment and focus characterization at X-ray free-electron lasers (XFELs). Focus optimization at XFEL beamlines presents unique challenges due to high peak powers as well as beam pointing instability, meaning that techniques capable of single ...
Seaberg M, Cojocaru R, Berujon S, Ziegler E, Jaggi A, Krempasky J, Seiboth F, Aquila A, Liu Y, Sakdinawat A, Lee HJ, Flechsig U, Patthey L, Koch F, Seniutinas G, David C, Zhu D, Mikeš L, Makita M, Koyama T, Mancuso AP, Chapman HN, Vagovič P.   +22 more
europepmc   +4 more sources

A versatile experimental system for tracking ultrafast chemical reactions with X-ray free-electron lasers [PDF]

Structural Dynamics, 2019
An experimental system, SPINETT (SACLA Pump-probe INstrumEnt for Tracking Transient dynamics), dedicated for ultrafast pump-probe experiments using X-ray free-electron lasers has been developed.
Tetsuo Katayama, Shunsuke Nozawa, Yasufumi Umena, SungHee Lee, Tadashi Togashi, Shigeki Owada, Makina Yabashi   +6 more
doaj   +2 more sources