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

International Tables for Crystallography (2006). Vol. F, ch. 2.1, p. 53   | 1 | 2 |


J. Drentha*

aLaboratory of Biophysical Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
Correspondence e-mail:


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.