view article
Figure 1
Schematic drawings of the moving-beam scanning that is used on DIAD. (A) Spatial configuration of the optical elements within the experimental hatch, showing the imaging (red) and diffraction (blue) beam paths. The KB focusing mirror refocuses the diffraction beam onto the sample position, which is spatially registered with the imaging FOV. HFM: horizontal focusing mirror. VFM: vertical focusing mirror. Mid BS is the beamstop used to stop the direct beam from hitting the diffraction detector. (B) A set of fixed-aperture slits, mechanically coupled to the KB mirrors, selects a sub-region of the diffraction beam. The horizontal and vertical KB mirrors, equipped with fixed-aperture plates, focus the dark red portion of the diffraction beam onto the sample. Due to the angular offset between the diffraction and imaging beam paths, the diffraction beam is focused across a FOV (∼1.7 mm as per DIAD design) located ∼2 mm from the projected position of the KB slits.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 59| Part 1| February 2026| Pages 12-27
https://doi.org/10.1107/S1600576725009811
Follow J. Appl. Cryst.
Sign up for e-alerts
E-alerts
Follow J. Appl. Cryst. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS