Correction and integration of solid-angle data from the azimuthally resolving 2D detector at ID06-LVP, ESRF

Area of Science:

• Materials Science
• Condensed Matter Physics
• Crystallography

Background:

• The European Synchrotron Radiation Facility (ESRF) beamline ID06-LVP features a unique diffraction geometry.
• This setup is designed for advanced data collection capabilities.

Purpose of the Study:

• To detail the alignment, correction, and integration methods for data collected with the ID06-LVP beamline's non-standard geometry.
• To demonstrate the system's capacity for continuous 2D or azimuthally resolving data collection over all accessible solid angles.

Main Methods:

• Utilized a custom-built, rotating Pilatus3 CdTe 900k-W detector.
• Extended existing pyFAI routines for data processing of the unique geometry.
• Collected data at 1° integrated intervals with a typical sample-detector distance of 2.0 m.

Main Results:

• Achieved a data collection area of approximately 2.5 m² (100 Mpx equivalent) with 0.65 Å resolution at 53 keV.
• Observed standard Full Width at Half Maximum (FWHM) values for SRM660a LaB₆ ranging from 0.005° to 0.01°.
• Demonstrated full solid-angle collection completion in approximately one minute, with static azimuth collections taking 1-3 seconds.

Conclusions:

• The ID06-LVP beamline's unique geometry and detector system enable efficient, high-resolution powder diffraction data collection.
• The implemented data processing methods are effective for handling data from this non-standard setup.
• The system offers significant advantages for time-resolved and large-area diffraction studies.