We would like to re-introduce Nuclear Forward Scattering as a elegant technique for hyperfine interaction characterization. Especially after the recent development of user friendly softwares
for data analysis as well as the enhanced flux for nuclear resonances at high energies:
Nuclear Forward Scattering is expected to be a more standardized technique for studies relevant
to condensed matter.   

Instructions/Information

Standard User Safety Training is mandatory.

This is a hands-on tutorial for the analysis and interpretation of data recorded at ID01 by five-dimensional Scanning X-ray Diffraction Microscopy (5D-SXDM). First, the SXDM technique and the beamline will be introduced. Then, the users will be guided through a workflow starting from raw beamline data and arriving at spatially resolved strain maps for a recent use case, utilizing the SXDM Python. Lastly, the physical meaning of micro-strain observed by SXDM will be discussed, and different capabilities of the technique will be outlined.

Instructions/Information

Please bring your own laptop. 

Disordered matter represents a category of systems where spatial and temporal fluctuations dictate their spatial and temporal structural properties. While disorder has a mild influence on the (average) structure, e.g. via density, the dynamical properties can dramatically change by orders of magnitude upon a limited variation of thermodynamic parameters like temperature and pressure. Density fluctuations can be measured by coherent light in a scattering experiment where the speckle pattern becomes resolved in the detector. Speckles are ensembles of fine interferences encoding the exact instantaneous structural arrangement of the specimen. They are modulated in space by the size of the coherent probe and in time by the dynamics of the sample fluctuations. X-ray Photon Correlation Spectroscopy (XPCS), the X-ray analogue of Dynamic Light Scattering (DLS), is a unique tool able to quantify temporal (electron) density fluctuations providing the intermediate scattering function f(Q,t) at the scattering vector Q, the physical quantity describing the relaxation behaviour of the system in the Fourier space. Thanks to the high brilliance of the 4th generation synchrotron sources like the Extremely Brilliant Source (EBS) at the ESRF, XPCS can probe the temporal domain down to tens of nano-sec from the meso-scale at small Q to the atomic scale at large Q, covering a large variety of soft and hard condensed matter systems not accessible by DLS, e.g. opaque colloids, gels and phase-ordering alloys at the meso-scale, deeply super-cooled melts and structural glasses at the atomic scale.
The tutorial covers the fundamental principles of XPCS based on coherent X-ray scattering and details of the data collection. We introduce the status of data handling and analysis showing how the physics of the dynamics can be extracted. Finally, we highlight the large impact of EBS on XPCS, allowing the extension towards very fast (10 ns) time scales thanks to new detection schemes and towards high energies (> 20 keV) allowing high-pressure studies of structural glasses in diamond anvil cells.

Agentic-AI assisted data analysis - perform custom and advanced analysis via a chat interface. Restricted to users of beamlines involved in the pilot project

Instructions/Information

Please bring your own laptop and create a VISA account.