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

#### HTML version of draft dictionary created by modified version of makedicthtml by B. McMahon from modified version of imgCIF dcitionary 1.3.2 which is subject to the following copyright:

Copyright © 2005 International Union of Crystallography