Results 91 to 100 of about 14,865 (237)

Diffraction based Hanbury Brown and Twiss interferometry performed at a hard x-ray free-electron laser

, 2017
We demonstrate experimentally Hanbury Brown and Twiss (HBT) interferometry at a hard X-ray Free Electron Laser (XFEL) on a sample diffraction patterns.
Chollet, M., Dzhigaev, D., Feng, Y., Gorobtsov, O. Yu., Kurta, R. P., Lazarev, S., Meijer, J. -M., Mukharamova, N., Petukhov, A. V., Serkez, S., Sikorski, M., Singer, A., Song, S., Vartanyants, I. A., Williams, G., Zhu, D.   +15 more
core  

Strategies for mitigating radiation damage and improving data completeness in 3D electron diffraction of protein crystals

Acta Crystallographica Section D, Volume 82, Issue 1, Page 11-22, January 2026.
This work demonstrates that multi‐position data acquisition mitigates radiation damage in electron diffraction of three‐dimensional protein crystals and that merging data from selected crystals in distinct orientations enhances completeness. Application of the two approaches enables high‐quality structural models to be obtained from limited or ...
Alaa Shaikhqasem, Farzad Hamdi, Lisa Machner, Christoph Parthier, Constanze Breithaupt, Fotis L. Kyrilis, Stephan M. Feller, Panagiotis L. Kastritis, Milton T. Stubbs   +8 more
wiley   +1 more source

Cylindrical compression of thin wires by irradiation with a Joule-class short-pulse laser

Nature Communications
Equation of state measurements at Jovian or stellar conditions are currently conducted by dynamic shock compression driven by multi-kilojoule multi-beam nanosecond-duration lasers.
Alejandro Laso Garcia, Long Yang, Victorien Bouffetier, Karen Appel, Carsten Baehtz, Johannes Hagemann, Hauke Höppner, Oliver Humphries, Thomas Kluge, Mikhail Mishchenko, Motoaki Nakatsutsumi, Alexander Pelka, Thomas R. Preston, Lisa Randolph, Ulf Zastrau, Thomas E. Cowan, Lingen Huang, Toma Toncian   +17 more
doaj   +1 more source

Diamond sensors for hard X-ray energy and position resolving measurements at the European XFEL

Journal of Synchrotron Radiation
The diagnostics of X-ray beam properties has a critical importance at the European X-ray Free-Electron Laser facility. Besides existing diagnostic components, utilization of a diamond sensor was proposed to achieve radiation-hard, non-invasive beam ...
Tuba Çonka Yıldız, Wolfgang Freund, Jia Liu, Matthias Schreck, Dmitry Khakhulin, Hazem Yousef, Christopher Milne, Jan Grünert   +7 more
doaj   +1 more source

Heterogeneous multireference alignment: a single pass approach

, 2018
Multireference alignment (MRA) is the problem of estimating a signal from many noisy and cyclically shifted copies of itself. In this paper, we consider an extension called heterogeneous MRA, where $K$ signals must be estimated, and each observation ...
Bendory, Tamir, Boumal, Nicolas, Lederman, Roy R., Singer, Amit   +3 more
core   +1 more source

Hard X-ray operation of X-ray gas monitors at the European XFEL

Journal of Synchrotron Radiation
X-ray gas monitors (XGMs) are operated at the European XFEL for non-invasive single-shot pulse energy measurements and average beam-position monitoring.
Theophilos Maltezopoulos, Frank Brinker, Florian Dietrich, Wolfgang Freund, Jan Grünert, Ulf Fini Jastrow, Naresh Kujala, Joakim Laksman, Jia Liu, Kai Tiedtke, Thomas Tschentscher   +10 more
doaj   +1 more source

European XFEL Status

, 2017
Future Circular Collider Week 2017, FCC Week 2017, Berlin, DESY, Germany, 29 May 2017 - 2 Jun ...
Weise, Hans, Decking, Winfried
openaire   +2 more sources

Calculation of effective pump dose in X-ray-pump/X-ray-probe experiments

Journal of Synchrotron Radiation
In pump–probe experiments on solid materials performed within ultrafast X-ray science, the energy deposited by an X-ray pump pulse in the sample has a non-uniform spatial distribution.
Sebastião Antunes, Michal Stransky, Victor Tkachenko, Ichiro Inoue, Philip Heimann, Konrad J. Kapcia, Beata Ziaja   +6 more
doaj   +1 more source

Proposal to generate 10 TW level femtosecond x-ray pulses from a baseline undulator in conventional SASE regime at the European XFEL

, 2013
Output characteristics of the European XFEL have been previously studied assuming an operation point at 5 kA peak current. In this paper we explore the possibility to go well beyond such nominal peak current level. In order to illustrate the potential of
Geloni, Gianluca, Kocharyan, Vitali, Saldin, Evgeni, Serkez, Svitozar, Zagorodnov, Igor   +4 more
core  

RADDOSE-XFEL: femtosecond time-resolved dose estimates for macromolecular XFEL experiments

, 2020
For macromolecular structure determination at synchrotron sources, radiation damage remains a major limiting factor. Estimation of the absorbed dose (J kg−1) during data collection at these sources by programs such as RADDOSE‐3D has allowed direct comparison of radiation damage between experiments carried out with different samples and beam parameters.
Dickerson, JL, McCubbin, PTN, Garman, EF
openaire   +1 more source