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)


Index

Core dictionary version 3.3.0

_diffrn.flux_density

Name:
_diffrn.flux_density

Definition:

   
    Flux density of radiation incident at the crystal. If flux is a
    characteristic of the source that does not change between measurements,
    _diffrn_radiation.beam_flux should be used instead.

    Reference: Dickerson, J. L., McCubbin, P. T. N., Brooks-Bartlett,
     J. C. & Garman, E. F. (2024). Doses for X-ray and electron
     diffraction: New features in RADDOSE-3D including intensity decay
     models. Protein Sci. 33, e5005.

Type: Real


The permitted range is 0.0 → infinity

Definition method:

         If (_diffrn_radiation.probe == "neutron")
                                _units.code =
"neutrons_per_millimetre_squared_per_second"
    Else If (_diffrn_radiation.probe == "electron")
                                _units.code =
"electrons_per_angstrom_squared_per_second"
    Else                        _units.code =
"photons_per_millimetre_squared_per_second"

Category:
diffrn








































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