Open AccessAsymmetric Fraunhofer Diffraction from Roller‐Blade Slits
Author(s) -
Libbert J. L.,
Pitney J. A.,
Robinson I. K.
Publication year - 1997
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/s0909049596014811
Subject(s) - diffraction , optics , rod , synchrotron radiation , materials science , blade (archaeology) , aperture (computer memory) , asymmetry , synchrotron , physics , mechanical engineering , acoustics , engineering , medicine , alternative medicine , pathology , quantum mechanics
X‐ray diffraction experiments under coherent conditions have been made possible by the development of new sources of synchrotron radiation, but make tough demands on the experimental apparatus. Here we describe the design and initial testing of a precision aperture that uses polished molybdenum rods as the slit blades. The device has an inherent asymmetry which is accurately accounted for by a simple modification to the Fraunhofer diffraction function.