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Guinier camera for single crystal investigation
Author(s) -
Dachs H.,
Knorr K.
Publication year - 1972
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889872009720
Subject(s) - monochromator , optics , crystal (programming language) , photography , diffraction , position (finance) , scattering , materials science , physics , computer science , wavelength , art , finance , economics , visual arts , programming language
The principle and applications of a new single crystal X‐ray camera designed for the Guinier method are reported. Contrary to conventional single‐crystal methods using a focusing monochromator, the new camera yields sharp focusing over the entire range of 2θ and an obvious increase in sharpness compared with Guinier powder photographs. Moreover a considerable reduction of the exposure time is attained. Using a single crystal, the clarity of a diffraction pattern may be increased to a considerable degree: by an appropriate choice of crystal position and oscillation angle, it is possible to record only those reflexions of particular interest. Further applications of the camera to small‐angle scattering, photography of the mosaic spread and topographical mapping are given.