ISSN:
1600-5724
Quelle:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Thema:
Chemie und Pharmazie
,
Geologie und Paläontologie
,
Physik
Notizen:
Simple graphical representations have been found which have led to the discovery of new geometrical relations between the angle settings, χ0, ω, χ and φ-φ0, of a four-circle single-crystal diffractometer, and the azimuthal angle, ψ, of the diffraction vector. The new geometric relations greatly simplify the derivation of the trigonometric equations which relate the angle settings with the rotation around the diffraction vector. One of these equations, tan χ = tan χ0/cos (φ - φ0), is given here for the first time. The others are similar in form to those derived previously with matrix methods.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1107/S0567739476001848
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