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Geometrical optimization of neutron small‐angle scattering instruments
Author(s) -
May R. P.
Publication year - 1994
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/s0021889893009197
Subject(s) - collimated light , optics , resolution (logic) , scattering , neutron , detector , physics , small angle neutron scattering , wavelength , small angle scattering , neutron scattering , computational physics , intensity (physics) , geometry , nuclear physics , mathematics , computer science , laser , artificial intelligence
The resolution that can be obtained with small‐angle neutron scattering facilities depends on the width of the selected wavelength band and on geometrical and other instrument‐linked contributions. With the geometrical contribution for pin‐hole geometry treated separately, it is shown that the intuitive choice of a symmetrical set‐up (collimation length = sample‐to‐detector distance) is justified; it yields the maximum of intensity for fixed resolution and total length. This result has not been demonstrated so clearly in previous studies.