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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
_diffrn_source.take_off_angle
Name:_diffrn_source.take_off_angle
Aliases:
_diffrn_source_take-off_angle
_diffrn_source.take-off_angle
Definition:
The complement of the angle in degrees between the normal
to the surface of the X-ray tube target and the primary
X-ray beam for beams generated by traditional X-ray tubes.
Type: Real
Units: degrees
The permitted range is 0.0 → 90.0
Category:
diffrn_source
