Results 31 to 40 of about 10,278 (249)

An X-ray gas monitor for free-electron lasers [PDF]

Journal of Synchrotron Radiation, 2019
A novel X-ray gas monitor (XGM) has been developed which allows the measurement of absolute photon pulse energy and photon beam position at all existing and upcoming free-electron lasers (FELs) over a broad spectral range covering vacuum ultraviolet (VUV), extreme ultraviolet (EUV) and soft and hard X-rays.
Andrey A. Sorokin, Yilmaz Bican, Susanne Bonfigt, Maciej Brachmanski, Markus Braune, Ulf Fini Jastrow, Alexander Gottwald, Hendrik Kaser, Mathias Richter, Kai Tiedtke   +9 more
openaire   +3 more sources

Polarization control in an X-ray free-electron laser [PDF]

Nature Photonics, 2016
X-ray free-electron lasers are unique sources of high-brightness coherent radiation. However, existing devices supply only linearly polarized light, precluding studies of chiral dynamics. A device called the Delta undulator has been installed at the Linac Coherent Light Source (LCLS) to provide tunable polarization.
Alberto A. Lutman, James P. MacArthur, Markus Ilchen, Anton O. Lindahl, Jens Buck, Ryan N. Coffee, Georgi L. Dakovski, Lars Dammann, Yuantao Ding, Hermann A. Dürr, Leif Glaser, Jan Grünert, Gregor Hartmann, Nick Hartmann, Daniel Higley, Konstantin Hirsch, Yurii I. Levashov, Agostino Marinelli, Tim Maxwell, Ankush Mitra, Stefan Moeller, Timur Osipov, Franz Peters, Marc Planas, Ivan Shevchuk, William F. Schlotter, Frank Scholz, Jörn Seltmann, Jens Viefhaus, Peter Walter, Zachary R. Wolf, Zhirong Huang, Heinz-Dieter Nuhn   +32 more
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Photoelectron Diffraction Imaging of a Molecular Breakup Using an X-Ray Free-Electron Laser

Physical Review X, 2020
A central motivation for the development of x-ray free-electron lasers has been the prospect of time-resolved single-molecule imaging with atomic resolution.
Gregor Kastirke, Markus S. Schöffler, Miriam Weller, Jonas Rist, Rebecca Boll, Nils Anders, Thomas M. Baumann, Sebastian Eckart, Benjamin Erk, Alberto De Fanis, Kilian Fehre, Averell Gatton, Sven Grundmann, Patrik Grychtol, Alexander Hartung, Max Hofmann, Markus Ilchen, Christian Janke, Max Kircher, Maksim Kunitski, Xiang Li, Tommaso Mazza, Niklas Melzer, Jacobo Montano, Valerija Music, Giammarco Nalin, Yevheniy Ovcharenko, Andreas Pier, Nils Rennhack, Daniel E. Rivas, Reinhard Dörner, Daniel Rolles, Artem Rudenko, Philipp Schmidt, Juliane Siebert, Nico Strenger, Daniel Trabert, Isabel Vela-Perez, Rene Wagner, Thorsten Weber, Joshua B. Williams, Pawel Ziolkowski, Lothar Ph. H. Schmidt, Achim Czasch, Florian Trinter, Michael Meyer, Kiyoshi Ueda, Philipp V. Demekhin, Till Jahnke   +48 more
doaj   +1 more source

Enhanced harmonic generation in x-ray free-electron lasers

Physical Review Special Topics. Accelerators and Beams, 2014
Harmonic generation becomes increasingly important as x-ray free-electron lasers push to shorter wavelengths. Recent studies have pointed to the possibility of enhancing harmonic generation by detuning the fundamental.
H. P. Freund, N. A. Yampolsky, Q. Marksteiner   +2 more
doaj   +1 more source

Single-exposure X-ray phase imaging microscopy with a grating interferometer

Journal of Synchrotron Radiation, 2022
The advent of hard X-ray free-electron lasers enables nanoscopic X-ray imaging with sub-picosecond temporal resolution. X-ray grating interferometry offers a phase-sensitive full-field imaging technique where the phase retrieval can be carried out from a
Andreas Wolf, Bernhard Akstaller, Silvia Cipiccia, Silja Flenner, Johannes Hagemann, Veronika Ludwig, Pascal Meyer, Andreas Schropp, Max Schuster, Maria Seifert, Mareike Weule, Thilo Michel, Gisela Anton, Stefan Funk   +13 more
doaj   +1 more source

Studies of a terawatt x-ray free-electron laser [PDF]

New Journal of Physics, 2018
The possibility of constructing terawatt (TW) x-ray free-electron lasers (FELs) has been discussed using novel superconducting helical undulators [5]. In this paper, we consider the conditions necessary for achieving powers in excess of 1 TW in a 1.5 Å FEL using simulations with the MINERVA simulation code [7].
Freund, H.P., van der Slot, P.J.M.
openaire   +4 more sources

Multi-wavelength anomalous diffraction de novo phasing using a two-colour X-ray free-electron laser with wide tunability

Nature Communications, 2017
X-ray free-electron lasers produce bright femtosecond X-ray pulses. Here, the authors use a two-colour X-ray free-electron laser beam for simultaneous two-wavelength data collection and show that protein structures can be determined with multiple ...
Alexander Gorel, Koji Motomura, Hironobu Fukuzawa, R. Bruce Doak, Marie Luise Grünbein, Mario Hilpert, Ichiro Inoue, Marco Kloos, Gabriela Kovácsová, Eriko Nango, Karol Nass, Christopher M. Roome, Robert L. Shoeman, Rie Tanaka, Kensuke Tono, Yasumasa Joti, Makina Yabashi, So Iwata, Lutz Foucar, Kiyoshi Ueda, Thomas R. M. Barends, Ilme Schlichting   +21 more
doaj   +1 more source

GdBCO bulk superconducting helical undulator for x-ray free-electron lasers

Physical Review Research, 2023
We report on the performance of a new type of helical undulator based on bulk single-grain GdBa_{2}Cu_{3}O_{7−δ} high-temperature superconductors. The 104-mm-long prototype with a period length of 16 mm and a magnetic aperture of 4 mm achieves an on-axis
Marco Calvi, Sebastian Hellmann, Eduard Prat, Thomas Schmidt, Kai Zhang, Anthony R. Dennis, John H. Durrell, Mark D. Ainslie   +7 more
doaj   +1 more source

FUNDAMENTAL PHYSICS AT AN X-RAY FREE ELECTRON LASER [PDF]

Electromagnetic Probes of Fundamental Physics, 2003
12 pages, 7 figures, erice.sty (included); Invited talk at the "Workshop on Electromagnetic Probes of Fundamental Physics", Erice, Italy, October ...
openaire   +2 more sources

X-Ray Amplification from a Raman Free-Electron Laser [PDF]

Physical Review Letters, 2012
accepted for publication in Phys. Rev. Lett.
Andriyash, Igor, D'Humieres, Emmanuel, Tikhonchuk, Vladimir, Balcou, Philippe   +3 more
openaire   +3 more sources