Abstract
The distribution of the diffuse scattering intensity of uranium dioxide single crystals has been studied before and after irradiation by reactor neutrons with doses of 1014, 1015 and 5.1016 fissions cm-3. It has been found that irradiation effects occurred only at 5.1016 fissions cm-3. The {002}k planes of irradiated UO2 and the {22{\bar 4}}k and {11{\bar 3}}k planes of unirradiated crystals have been observed as planes of high diffuse intensity. In unirradiated crystals the measured relative intensities around the 335 reciprocal-lattice point are in fair agreement with calculations using the Jahn formula, i.e. they have a maximum in the [33{\bar 1}] direction. In irradiated samples, however, there exists a weak [002] maximum. This change in the distribution cannot be interpreted by Stokes-Wilson scattering alone and the extra intensity may be explained by the scattering of X-rays from defect modes of lattice vibrations.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Acta Crystallographica Section A: Crystal Physics, Diffraction, Theoretical and General Crystallography
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
