D22
Large dynamic range small-angle diffractometer
![](/fileadmin/user_upload/ILL/3_Users/Instruments/Instruments_list/00_-_LARGE_SCALE_STRUCTURES/D22/img/d22-howitwork2.gif)
Some typical SANS patterns
SANS patterns are often quite beautiful with a reminiscence of Vasareli art painting.
Why Neutrons?
- No charge, very penetrating, and non destructive to samples
- Neutron wavelengths are comparable to atomic sizes and inter-distance spacing
- Neutron interactions with hydrogen and deuterium are widely different making the deuterium labeling method an advantage.