International
Tables for
Crystallography
Volume F
Crystallography of biological macromolecules
Edited by E. Arnold, D. M. Himmel and M. G. Rossmann

International Tables for Crystallography (2012). Vol. F, ch. 2.1, p. 53   | 1 | 2 |

Figure 2.1.4.2 

J. Drentha*

aLaboratory of Biophysical Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
Correspondence e-mail: j.drenth@chem.rug.nl

[Figure 2.1.4.2]
Figure 2.1.4.2

The black dots are electrons. The origin of the system is at electron 1; electron 2 is at position r. The electrons are irradiated by an X-ray beam from the direction indicated by vector [{\bf s}_{o}]. The radiation scattered by the electrons is observed in the direction of vector s. Because of the path difference [p + q], scattered beam 2 will lag behind scattered beam 1 in phase. Reproduced with permission from Drenth (1999[link]). Copyright (1999) Springer-Verlag.