Core dictionary (coreCIF)

Hall, Sydney R.; Allen, Frank H.; Brown, I. David; Toby, Brian H.; Hester, James R.; Vaitkus, Antanas; Rowles, Matthew R.; Bollinger, John C.; Rainer, Daniel N.; McMahon, Brian

doi:10.1107/97809553602060001011

RELATED SITES: IUCr | IUCr Journals

International
Tables for
Crystallography
Volume G
Definition and exchange of crystallographic data
Edited by J. R. Hester and B. McMahon

International Tables for Crystallography (2026). Vol. G. Early view chapter
https://doi.org/10.1107/97809553602060001011

Chapter 4.2 Core dictionary (coreCIF)

CIF_CORE_HEAD > DIFFRACTION > DIFFRN > DIFFRN_RADIATION

Index

Core dictionary version 3.3.0

_diffrn_radiation.beam_flux

Name:
_diffrn_radiation.beam_flux

Definition:

   
     The average flux integrated over the beam incident on the sample.
     If flux varies for individual measurements using the same source,
     _diffrn.flux_density is preferred.

Type: Real

The permitted range is 0.0 → infinity

Definition method:

         If (_diffrn_radiation.probe == "neutron")
                                _units.code = "neutrons_per_second"
         Else If (_diffrn_radiation.probe == "electron")
                                _units.code = "electrons_per_second"
         Else                   _units.code = "photons_per_second"

Category:
diffrn_radiation

International Tables for Crystallography (2026). Vol. G. Chapter 4.2
https://doi.org/10.1107/97809553602060001011