Following the dynamics of matter with femtosecond precision using the X-ray streaking method

Dávid, Christian; Karvinen, Petri; Sikorski, Marcin; Song, Sanghoon; Vartiainen, Ismo; Milne, Christopher J.; Mozzanica, A.; Kayser, Yves; Díaz, Ana; Mohácsi, István; Carini, G.; Herrmann, Sven; Färm, Elina; Ritala, Mikko; Fritz, David; Robert, Aymeric

doi:10.1038/srep07644

Cited by 26 publications

(26 citation statements)

References 30 publications

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“…This is particularly the case with a single-shot split and multiple-delay system, offering the possibility to probe ultrafast dynamics by means of X-ray pump/X-ray probe experiments, as recently demonstrated by David et al (2015).…”

Section: Figurementioning

confidence: 99%

The X-ray Correlation Spectroscopy instrument at the Linac Coherent Light Source

et al. 2015

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The X-ray Correlation Spectroscopy instrument is dedicated to the study of dynamics in condensed matter systems using the unique coherence properties of free-electron lasers. It covers a photon energy range of 4-25 keV. The intrinsic temporal characteristics of the Linac Coherent Light Source, in particular the 120 Hz repetition rate, allow for the investigation of slow dynamics (milliseconds) by means of X-ray photon correlation spectroscopy. Double-pulse schemes could probe dynamics on the picosecond timescale. A description of the instrument capabilities and recent achievements is presented.

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Section: Figurementioning

confidence: 99%

The X-ray Correlation Spectroscopy instrument at the Linac Coherent Light Source

et al. 2015

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“…For the experiments presented here, the set-up follows the design of an X-ray optical delay line as described by David et al 34 (Fig. 1).…”

Section: Experimental and Computational Methodsmentioning

confidence: 99%

“…The investigated time window is of particular importance to explore the effects of beam damage in protein crystals probed with XFEL radiation with ultrashort pulses. For this purpose, the split-and-delay setup 34 was adapted for measurements in transmission (Laue) geometry (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

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Demonstration of femtosecond X-ray pump X-ray probe diffraction on protein crystals

Opara

Mohácsi

Makita

et al. 2018

Structural Dynamics

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The development of X-ray free-electron lasers (XFELs) has opened the possibility to investigate the ultrafast dynamics of biomacromolecules using X-ray diffraction. Whereas an increasing number of structures solved by means of serial femtosecond crystallography at XFELs is available, the effect of radiation damage on protein crystals during ultrafast exposures has remained an open question. We used a split-and-delay line based on diffractive X-ray optics at the Linac Coherent Light Source XFEL to investigate the time dependence of X-ray radiation damage to lysozyme crystals. For these tests, crystals were delivered to the X-ray beam using a fixed-target approach. The presented experiments provide probe signals at eight different delay times between 19 and 213 femtoseconds after a single pump event, thereby covering the time-scales relevant for femtosecond serial crystallography. Even though significant impact on the crystals was observed at long time scales after exposure with a single X-ray pulse, the collected diffraction data did not show significant signal reduction that could be assigned to beam damage on the crystals in the sampled time window and resolution range. This observation is in agreement with estimations of the applied radiation dose, which in our experiment was clearly below the values expected to cause damage on the femtosecond time scale. The experiments presented here demonstrate the feasibility of time-resolved pump-multiprobe X-ray diffraction experiments on protein crystals.

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“…The delay time is determined by the path length difference between the delay branches, resulting in a jitter-free delay time control through precise adjustments of the path length difference. In the hard X-ray regime, several SDO layouts based on grazing-incidence multilayer mirrors (Roling et al, 2014), diffraction gratings (David et al, 2015) and perfect crystals (Roseker et al, 2009(Roseker et al, , 2011Stetsko et al, 2013;Sakamoto et al, 2017) have been proposed, and some systems have been tested at synchrotron and/or XFEL facilities. In particular, crystal-based SDO systems can easily generate a large delay time of more than 100 ps with a reasonably small apparatus, because of a large deflection angle (greater than several degrees) for Bragg diffractions.…”

Section: Introductionmentioning

confidence: 99%

Performance of a hard X-ray split-and-delay optical system with a wavefront division

Hirano

Osaka

Morioka

et al. 2018

J Synchrotron Radiat

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The performance of a hard X-ray split-and-delay optical (SDO) system with a wavefront division scheme was investigated at the hard X-ray free-electron laser facility SACLA. For the wavefront division, beam splitters made of edgepolished perfect Si(220) crystals were employed. We characterized the beam properties of the SDO system, and investigated its capabilities for beam manipulation and diagnostics. First, it was confirmed that shot-to-shot noninvasive diagnostics of pulse energies for both branches in the SDO system was feasible. Second, nearly ideal and identical focal profiles for both branches were obtained with a spot size of $ 1.5 mm in full width at half-maximum. Third, a spatial overlap of the two focused beams with a sub-mm accuracy was achieved by fine tuning of the SDO system. Finally, a reliable tunability of the delay time between two pulses was confirmed. The time interval was measured with an X-ray streak camera by changing the path length of the variable-delay branch. Errors from the fitted line were evaluated to be as small as AE 0.4 ps over a time range of 60 ps.

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Following the dynamics of matter with femtosecond precision using the X-ray streaking method

Cited by 26 publications

References 30 publications

The X-ray Correlation Spectroscopy instrument at the Linac Coherent Light Source

The X-ray Correlation Spectroscopy instrument at the Linac Coherent Light Source

Demonstration of femtosecond X-ray pump X-ray probe diffraction on protein crystals

Performance of a hard X-ray split-and-delay optical system with a wavefront division

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