(IUCr) CIF Definition save__diffrn_scan_frame_axis.reference_angle

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_scan_frame_axis.reference_angle

Name:
`'_diffrn_scan_frame_axis.reference_angle'`

Definition:

            The setting of the specified axis in degrees
                   against which measurements of the reference beam center
                   and reference detector distance should be made.

                   This is normally the same for all frames, but the
                   option is provided here of making changes when
                   needed.

                   If not provided, it is assumed to be zero.

Type: float

Mandatory item: implicit

Enumeration default: 0.0

Category: diffrn_scan_frame_axis

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Copyright © 2005 International Union of Crystallography