Picosecond pump–probe X-ray scattering at the Elettra SAXS beamline

Abstract

A new setup for picosecond pump–probe X-ray scattering at the Austrian SAXS beamline at Elettra-Sincrotrone Trieste is presented. Details of the specific implementation are discussed and results of a first transient-heating experiment are shown.

EIGER2 hybrid-photon-counting X-ray detectors for advanced synchrotron diffraction experiments

“…Electronic gating allows individual X-ray pulses from a single bunch of the storage ring bunch structure to be isolated (Ejdrup et al, 2009;Kraft et al, 2009;Burian et al, 2020;Bachiller-Perea et al, 2020;Schmidt et al, 2021). This approach allows for time-resolved experiments that are not limited by the readout speed of the detector, but only by the duration of the X-ray pulse, which is usually < 100 ps (Burian et al, 2020;Nakaye et al, 2021). The temporal resolution in this time domain allows for investigations of ultrafast phenomena, such as light-induced reactions, phonon transport and transient structural dynamics (Cammarata et al, 2008).…”

“…Modern HPC detectors have the potential to exploit the pulsed nature of synchrotron sources without the need for additional beamline optics. Electronic gating allows individual X-ray pulses from a single bunch of the storage ring bunch structure to be isolated (Ejdrup et al, 2009;Kraft et al, 2009;Burian et al, 2020;Bachiller-Perea et al, 2020;Schmidt et al, 2021). This approach allows for time-resolved experiments that are not limited by the readout speed of the detector, but only by the duration of the X-ray pulse, which is usually < 100 ps (Burian et al, 2020;Nakaye et al, 2021).…”

“…The Austrian SAXS beamline at the ELETTRA synchrotron recently established a flexible setup optimized for laserpump/X-ray-probe experiments (Burian et al, 2020). In this experiment the pump-probe setup was employed to investigate the heat conduction in a GaAs/AlAs semiconductor superlattice structure (Naumenko, 2023) using the EIGER2 double-gating mode (Section 2.4.1).…”

Impact of PEGylation on the degradation and pore organization in mesoporous silica nanoparticles: A study of the inner mesoporous structure in physiologically relevant ionic conditions

“…Data for the transmission of the sample and the fluctuations of the primary beam were corrected, the scattering patterns of all the images of each sample were averaged and the respective backgrounds, treated in the same way, were subtracted. A Pilatus3 1M detector system recorded the two-dimensional patterns, processed by SAXS DOG [24] and by Igor Pro software (WaveMetrics, Lake Oswego, OR, USA) to obtain radial averages, hence the scattering intensity as a function of the magnitude of the scattering vector Q defined as Q = 4π sinθ / λ, with 2θ being the scattering angle and λ equal to 0.154 nm the wavelength of X-rays corresponding to an energy of 8 keV.…”

µDrop: a system for high-throughput small-angle X-ray scattering measurements of microlitre samples

“…After the measurement is completed, the detector image is processed to 1D data by SAXSdog (Burian et al, 2020), the data reduction pipeline available at the Austrian SAXS beamline. This allows immediate analysis by investigating scattering patterns, integrated intensity, invariant, correlation length etc.…”