International
Tables for Crystallography Volume C Mathematical, physical and chemical tables Edited by E. Prince © International Union of Crystallography 2006 
International Tables for Crystallography (2006). Vol. C, ch. 5.3, p. 512


Figure 5.3.2.2
Schematic representation of the origin of the Kossel lines. (a) The Kossel (1936) method. (b) The divergentbeam method developed by Lonsdale (1947). (c) The protoninduced Kossel effect (Geist & Ascheron, 1984). In (b), the divergent Xray beam is directed onto the sample from a point source while in the remaining cases it is generated within a crystal by (a) electrons or (c) protons. 