Core dictionary (coreCIF) version 2.4.5
Data items in the DIFFRN_RADIATION category describe the radiation used in measuring the diffraction intensities, its collimation and monochromatization before the sample. Post-sample treatment of the beam is described by data items in the DIFFRN_DETECTOR category.Example:
Example 1 - based on data set TOZ of Willis, Beckwith & Tozer
[Acta Cryst. (1991), C47, 2276-2277].
_diffrn_radiation_type 'Cu K\a' _diffrn_radiation_monochromator 'graphite'