(IUCr) CIF Definition save__diffrn_data_frame.center_slow

DRAFT DICTIONARY CBF/imgCIF Extensions Dictionary | Draft version 1.5 for comment

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Index

##### Image dictionary (imgCIF) version 1.5.4

# _diffrn_data_frame.center_slow

Name:
`'_diffrn_data_frame.center_slow'`

Definition:

           The value of _diffrn_data_frame.center_slow is
                  the slow index axis beam center position relative to the detector
                  element face in the units specified in the data item
                  '_diffrn_data_frame.center_units' along the slow
                  axis of the detector from the center of the first pixel to
                  the point at which the Z-axis (which should be colinear with the
                  beam) intersects the face of the detector, if in fact is does.
                  At the time of the measurement the current setting of detector
                  positioner given frame are used.

                  It is important to note that the sense of the axis is used,
                  rather than the sign of the pixel-to-pixel increments.

Type: float

Mandatory item: no

Category: diffrn_data_frame

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Copyright © 2005 International Union of Crystallography