Open AccessAngular Resolution of Parallel Foils on a Synchrotron Powder Diffractometer
Author(s) -
Roberts M. A.,
Tang C. C.
Publication year - 1998
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049598007870
Subject(s) - diffractometer , angular resolution (graph drawing) , resolution (logic) , optics , diffraction , aperture (computer memory) , powder diffractometer , materials science , synchrotron , range (aeronautics) , synchrotron radiation , x ray , physics , crystallography , chemistry , mathematics , computer science , combinatorics , composite material , scanning electron microscope , artificial intelligence , acoustics
In an attempt to improve the resolution in flat‐plate diffraction geometry, a new set of parallel foils, 100 µm spacing, 365 mm long with an aperture of 20 × 20 mm 2 , has been commissioned. The study was carried out using the two‐circle diffractometer of station 2.3 at the SRS. In order to properly quantify the improvements, a detailed and comparative study of the instrumental resolution using the new and existing foils, of 200 µm spacing, is reported. A number of cubic materials, BaF 2 , Si and CeO 2 , that are known to show well defined Bragg peaks over the full 2θ angular range available, were investigated.