Crystallographic Information Framework

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Index

Powder dictionary (pdCIF) version 1.0.1

_pd_instr_beam_size_

Names:
'_pd_instr_beam_size_ax' '_pd_instr_beam_size_eq'

Definition:

   Axial and equatorial dimensions of the radiation beam
   at the specimen position (in millimetres).
   The perpendicular to the plane containing the incident
   and scattered beam is the axial (*_ax) direction.


The permitted range is 0.0 -> infinity

Type: numb

Category: pd_data


International Tables for Crystallography

Volume G: Definition and exchange of crystallographic data

First online edition (2006)

Edited by S. R. Hall and B. McMahon

An essential guide and reference to CIF for programmers, data managers handling crystal-structure information and practising crystallographers.