Large dynamic range small-angle diffractometer D22

Small-angle scattering is a technique that measures the deviation to small angles (much less than one degree to several degrees) of an X-ray or neutron beam due to structures of small size in the sample. “Small” means dimensions of a few tenths to about 100 nanometres, such as clusters in alloys, polymers, or biological macromolecules.

D22move_logicals

Meaning of logicals for motor movements

MAD        HARD    meaning
command   (tag)

DET        DTC     detector distance
DTR        DTD     detector translation lateral
DAN        DRD     detector rotation
SDI        EY      sample distance along beam direction
SAN        ER      sample table angle (counterclockwise seen from top)
STR        EX      sample changer translation lateral
TTR                sample table translation lateral
SHT        TE      sample table height (incremental)
SHT        TE      sample table height (incremental)
PHI                sample cradle angle
BX         BSX     beamstop horizontal
BY         BSY     beamstop vertical

Here is the D22 documentation.

To top