Results 41 to 50 of about 18,392 (242)

Prospects for CW and LP operation of the European XFEL in hard X-ray regime [PDF]

, 2014
The European XFEL will operate nominally at 17.5 GeV in SP (short pulse) mode with 0.65 ms long bunch train and 10 Hz repetition rate. A possible upgrade of the linac to CW (continuous wave) or LP (long pulse) modes with a corresponding reduction of ...
Brinkmann, R., Schneidmiller, E. A., Sekutowicz, J., Yurkov, M. V.   +3 more
core   +1 more source

Do crystallographic XFEL data support binding of a water molecule to the oxygen-evolving complex of photosystem II exposed to two flashes of light?

Proceedings of the National Academy of Sciences of the United States of America, 2021
X-ray free electron laser (XFEL) crystallography could revolutionize mechanistic studies of photosystem II (PSII) by providing three-dimensional structures of its reaction intermediates that cannot be obtained using traditional crystallographic ...
Jimin Wang, W. Armstrong, Victor S. Batista   +2 more
semanticscholar   +1 more source

Demonstration of an x-ray Raman spectroscopy setup to study warm dense carbon at the high energy density instrument of European XFEL

Physics of Plasmas, 2021
We present a proof-of-principle study demonstrating x-ray Raman Spectroscopy (XRS) from carbon samples at ambient conditions in conjunction with other common diagnostics to study warm dense matter, performed at the high energy density scientific ...
K. Voigt, M. Zhang, Kushal Ramakrishna, A. Amouretti, K. Appel, E. Brambrink, V. Cerantola, D. Chekrygina, T. Döppner, R. Falcone, Katerina Falk, L. Fletcher, D. Gericke, S. Göde, M. Harmand, N. Hartley, S. Hau-Riege, L. Huang, O. Humphries, M. Lokamani, Mikako Makita, A. Pelka, C. Prescher, A. Schuster, M. Šmíd, T. Toncian, J. Vorberger, U. Zastrau, T. Preston, D. Kraus   +29 more
semanticscholar   +1 more source

The XBI BioLab for life science experiments at the European XFEL

Journal of Applied Crystallography, 2021
An overview of a unique life science facility at the European XFEL is provided, and its importance in sample preparation, characterization and analysis prior to measurements at the different European XFEL instruments is discussed.
Huijong Han, E. Round, R. Schubert, Y. Gül, Jana Makroczyová, Domingo Meza, P. Heuser, M. Aepfelbacher, I. Barák, C. Betzel, P. Fromme, I. Kursula, P. Nissen, E. Tereschenko, J. Schulz, C. Uetrecht, J. Uličný, M. Wilmanns, J. Hajdu, V. Lamzin, K. Lorenzen   +20 more
semanticscholar   +1 more source

Elucidating the Transition Kernel and Anharmonic Coupling in the Spin‐crossover Process of a [FeIII(qsal)2] CH3OSO3 Complex

Angewandte Chemie, EarlyView.
Ultrafast broadband transient absorption spectroscopy and multireference excited‐state nonadiabatic calculations in an open‐shell Fe(III) complex unveil the rich electronic and vibrational dynamics detailing the key reactive modes driving the spin‐crossover process.
Soumyajit Mitra, Dilara Farkhutdinova, Sebastian Mai, Stuart A. Hayes, Yifeng Jiang, Tadahiko Ishikawa, Kazuyuki Takahashi, Leticia González, R. J. Dwayne Miller   +8 more
wiley   +2 more sources

High Resolution XFEL Structure of the Soluble Methane Monooxygenase Hydroxylase Complex with its Regulatory Component at Ambient Temperature in Two Oxidation States.

Journal of the American Chemical Society, 2020
Soluble methane monooxygenase (sMMO) is a multicomponent metalloenzyme that catalyzes the conversion of methane to methanol at ambient temperature using a nonheme, oxygen-bridged dinuclear iron cluster in the active site.
V. Srinivas, R. Banerjee, H. Lebrette, Jason C Jones, O. Aurelius, In-Sik Kim, Cindy C Pham, S. Gul, K. Sutherlin, A. Bhowmick, J. John, E. Bozkurt, T. Fransson, P. Aller, A. Butryn, I. Bogacz, Philippe Simon, S. Keable, A. Britz, K. Tono, K. Kim, Sang-Youn Park, Sang-Jae Lee, Jaehyun Park, R. Alonso-Mori, F. Fuller, A. Batyuk, A. Brewster, U. Bergmann, N. Sauter, A. Orville, V. Yachandra, J. Yano, J. Lipscomb, J. Kern, M. Högbom   +35 more
semanticscholar   +1 more source

Stability of Bragg reflectors under megahertz heat load at XFELs

Journal of Synchrotron Radiation, 2023
Modern X-ray free-electron laser (XFEL) sources can deliver photon pulses with millijoule pulse energies and megahertz repetition rate. As shown by the simulations in this work, for particular cases the dynamical heat load effects for Bragg reflectors ...
Immo Bahns, Patrick Rauer, Jörg Rossbach, Harald Sinn   +3 more
doaj   +1 more source

Serial synchrotron and XFEL crystallography for studies of metalloprotein catalysis

Current Opinion in Structural Biology, 2021
An estimated half of all proteins contain a metal, with these being essential for a tremendous variety of biological functions. X-ray crystallography is the major method for obtaining structures at high resolution of these metalloproteins, but there are ...
M. Hough, R. Owen
semanticscholar   +1 more source

Microsecond hydrodynamic interactions in dense colloidal dispersions probed at the European XFEL

IUCrJ, 2021
The dynamics of small nanoparticles dispersed in water are probed with multi-speckle XPCS taking advantage of the pulse structure of the European XFEL.
F. Dallari, Avni Jain, M. Sikorski, J. Möller, Richard Bean, U. Boesenberg, L. Frenzel, Claudia Goy, J. Hallmann, Yoonhee Kim, I. Lokteva, V. Markmann, G. Mills, A. Rodriguez-Fernandez, W. Roseker, M. Scholz, R. Shayduk, P. Vagovič, M. Walther, F. Westermeier, A. Madsen, A. Mancuso, G. Grübel, F. Lehmkühler   +23 more
semanticscholar   +1 more source

Room temperature XFEL crystallography reveals asymmetry in the vicinity of the two phylloquinones in photosystem I

Scientific Reports, 2021
Photosystem I (PS I) has a symmetric structure with two highly similar branches of pigments at the center that are involved in electron transfer, but shows very different efficiency along the two branches.
S. Keable, A. Kölsch, P.S. Simon, M. Dasgupta, R. Chatterjee, S. Subramanian, R. Hussein, M. Ibrahim, In-Sik Kim, I. Bogacz, H. Makita, C. Pham, F. Fuller, S. Gul, Daniel W. Paley, L. Lassalle, K. Sutherlin, A. Bhowmick, N. Moriarty, I. Young, Johannes Blaschke, C. de Lichtenberg, P. Chernev, M. Cheah, Sehan Park, G. Park, Jangwoo Kim, Sang Jae Lee, Jaehyun Park, K. Tono, S. Owada, M. Hunter, A. Batyuk, Roland Oggenfuss, M. Sander, S. Zerdane, D. Ozerov, K. Nass, H. Lemke, Roman Mankowsky, A. Brewster, J. Messinger, N. Sauter, V. Yachandra, J. Yano, A. Zouni, J. Kern   +46 more
semanticscholar   +1 more source