International
Tables for
Crystallography
Volume C
Mathematical, physical and chemical tables
Edited by E. Prince

International Tables for Crystallography (2006). Vol. C. ch. 2.3, p. 52

Figure 2.3.1.13 

W. Parrisha and J. I. Langfordb

a IBM Almaden Research Center, San Jose, CA, USA, and bSchool of Physics & Astronomy, University of Birmingham, Birmingham B15 2TT, England

[Figure 2.3.1.13]
Figure 2.3.1.13

Seemann–Bohlin method. (a) X-ray optics using incident-beam monochromator. (b) X-ray tube line-focus source showing geometrical relations: γ mean angle of incident beam, βH inclination of reflecting plane H to specimen surface, θH Bragg angle of H plane, t tangent to focusing circle at O. (c) Diffractometer settings for various angular ranges.