| Autor: |
Lima, F. A., Otte, F., Vakili, M., Ardana-Lamas, F., Biednov, M., Dall'Antonia, F., Frankenberger, P., Gawelda, W., Gelisio, L., Han, H., Huang, X., Jiang, Y., Kloos, M., Kluyver, T., Knoll, M., Kubicek, K., Bermudez Macias, I. J., Schulz, J., Turkot, O., Uemura, Y. |
| Předmět: |
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| Zdroj: |
Journal of Synchrotron Radiation; Nov2023, Vol. 30 Issue 6, p1168-1182, 15p |
| Abstrakt: |
The Femtosecond X-ray Experiments (FXE) instrument at the European X-ray Free-Electron Laser (EuXFEL) provides an optimized platform for investigations of ultrafast physical, chemical and biological processes. It operates in the energy range 4.7-20 keVaccommodating flexible and versatile environments for a wide range of samples using diverse ultrafast X-ray spectroscopic, scattering and diffraction techniques. FXE is particularly suitable for experiments taking advantage of the sub-MHz repetition rates provided by the EuXFEL. In this paper a dedicated setup for studies on ultrafast biological and chemical dynamics in solution phase at sub-MHz rates at FXE is presented. Particular emphasis on the different liquid jet sample delivery options and their performance is given. Our portfolio of high-speed jets compatible with sub- MHz experiments includes cylindrical jets, gas dynamic virtual nozzles and flat jets. The capability to perform multi-color X-ray emission spectroscopy (XES) experiments is illustrated by a set of measurements using the dispersive X-ray spectrometer in von Hamos geometry. Static XES data collected using a multicrystal scanning Johann-type spectrometer are also presented. A few examples of experimental results on ultrafast time-resolved X-ray emission spectroscopy and wide-angle X-ray scattering at sub-MHz pulse repetition rates are given. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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