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Recent developments in X‐ray and neutron small‐angle scattering instrumentation and data analysis
Author(s) -
Schelten J.,
Hendricks R. W.
Publication year - 1978
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/s0021889878013461
Subject(s) - collimated light , instrumentation (computer programming) , neutron , optics , physics , detector , slicing , scattering , neutron scattering , neutron detection , computer science , nuclear physics , computer graphics (images) , laser , operating system
The developments in instrumentation and data analysis that have occurred in the field of small‐angle X‐ray and neutron scattering since 1973 are reviewed. For X‐rays, the cone camera collimation system was invented, synchrotrons and storage rings were demonstrated to be intense sources of X‐radiation, and one‐ and two‐dimensional position‐sensitive detectors were interfaced to cameras with both point and line collimation. For neutrons, the collimators and detectors on the Jülich and Grenoble machines were improved, new D11‐type instruments were built or are under construction at several sites, double‐crystal instruments were set up, and various new machines have been proposed. Significant progress in data analysis and evaluation has been made through application of mathematical techniques such as the use of spline functions, error minimization with constraints, and linear programming. Several special experiments, unusual in respect to the anisotropy of the scattering pattern, gravitational effects, moving scatterers, and dynamic fast time slicing, are discussed.