(IUCr) CIF Definition save__diffrn_detector_element.center[1]

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_detector_element.center[1]

Name:
`'_diffrn_detector_element.center[1]'`

Definition:

           The value of _diffrn_detector_element.center[1] is the X
                  component of the distortion-corrected beam centre in
                  millimetres from the (0, 0) (lower-left) corner of the
                  detector element viewed from the sample side.

                  The X and Y axes are the laboratory coordinate system
                  coordinates defined in the AXIS category measured
                  when all positioning axes for the detector are at their zero
                  settings.  If the resulting X or Y axis is then orthogonal to the
                  detector, the Z axis is used instead of the orthogonal axis.

                  Because of ambiguity about the setting used to determine this
                  center, use of this data item is deprecated.  The data item
                  _diffrn_data_frame.center_fast
                  which is referenced to the detector coordinate system and not
                  directly to the laboratory coordinate system should be used
                  instead.

Type: float

Mandatory item: no

Enumeration default: 0.0

Category: diffrn_detector_element

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Copyright © 2005 International Union of Crystallography