Chapter 6.2 Trigonometric intensity factors

Mathematical, physical and chemical tables

First Online Edition (2006)

Part 6. Interpretation of diffracted intensities

  1. H. Lipson1,
  2. J. I. Langford1,
  3. H.-C. Hu2

Published Online: 1 JAN 2006

DOI: 10.1107/97809553602060000601

International Tables for Crystallography

International Tables for Crystallography

How to Cite

Lipson, H., Langford, J. I. and Hu, H.-C. 2006. Trigonometric intensity factors. International Tables for Crystallography. C:6:6.2:596–598.

Author Information

  1. 1

    School of Physics & Astronomy, University of Birmingham, Birmingham B15 2TT, England

  2. 2

    China Institute of Atomic Energy, PO Box 275 (18), Beijing 102413, People’s Republic of China

Publication History

  1. Published Online: 1 JAN 2006


A summary of the expressions for the intensity of diffraction as recorded by various techniques, including the fundamental constants as well as the trigonometric factors, is provided. Notes on the polarization factor, the angular-velocity factor, the Lorentz factor and special factors in the powder method are included. Some remarks are also made about the integrated reflection power ratio formulae for single-crystal slabs.


  • angular-velocity factors;
  • intensity factors;
  • Lorentz factor;
  • polarization factor;
  • powder diffraction;
  • trigonometric intensity factors