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International
Tables for Crystallography Volume G Definition and exchange of crystallographic data Edited by J. R. Hester and B. McMahon © International Union of Crystallography 2026 |
International Tables for Crystallography (2026). Vol. G. Early view chapter
https://doi.org/10.1107/97809553602060001011 Chapter 4.2 Core dictionary (coreCIF) |
Core dictionary version 3.3.0
_exptl_crystal_face.diffr_psi
Name:_exptl_crystal_face.diffr_psi
Alias:
_exptl_crystal_face_diffr_psi
Definition:
Diffractometer angle setting when the perpendicular to the specified
crystal face is aligned along a specified direction (e.g. the
bisector of the incident and reflected beams in an optical goniometer).
Type: Real
Units: degrees
The permitted range is -180.0 → 180.0
Category:
exptl_crystal_face
