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Observation of divergent-beam X-ray diffraction from a crystal of diamond using synchrotron radiation

DOI: 10.1107/S0909049504000949 DOI Help
PMID: 14960784 PMID Help

Authors: A. M. Glazer (Department of Physics, University of Oxford, U.K.) , S. P. Collins (Diamond Light Source) , D. Zekria (Department of Physics, University of Oxford, U.K.) , J. Liu (Department of Engineering Science, University of Oxford, U.K.) , M. Golshan (CCLRC Daresbury Laboratory, U.K.)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Synchrotron Radiation , VOL 11 , PAGES 187 - 189

State: Published (Approved)
Published: March 2004

Abstract: In 1947 Kathleen Lonsdale conducted a series of experiments on X-ray diffraction using a divergent beam external to a crystal sample. Unlike the Kossel technique, where divergent X-rays are excited by the presence of fluorescing atoms within the crystal, the use of an external divergent source made it possible to study non-fluorescing crystals. The resulting photographs not only illustrated the complexity of X-ray diffraction from crystals in a truly beautiful way, but also demonstrated unprecedented experimental precision. This long-forgotten work is repeated here using a synchrotron radiation source and, once again, considerable merit is found in Lonsdale's technique. The results of this experiment suggest that, through the use of modern 'third-generation' synchrotron sources, divergent-beam diffraction could soon enjoy a renaissance for high-precision lattice-parameter determination and the study of crystal perfection.

Journal Keywords: Divergent-Beam Diffraction; Kossel Lines; Fluorescence.

Subject Areas: Physics

Facility: Daresbury Laboratory

Added On: 10/11/2010 08:51

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