Brilliant opportunities across the spectrum

Evans, J. (2006) Brilliant opportunities across the spectrum. Physical Chemistry Chemical Physics, 8, (26), 3045-3058. (doi:10.1039/b604369k).


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Third generation synchrotron light sources provide stable, tuneable light of energy up to the hard X-ray region. The gain of a trillion in brightness as compared to a conventional laboratory X-ray source transforms the opportunities for establishing structure-function relationships. The light may be quasi-continuous or pulsed, have controllable polarisation and have coherence lengths larger than the sample size. The high brightness provides a basis for adding time and spatial resolution to X-ray scattering and spectroscopy. It may also be used to identify very specific information about the magnetic properties of atoms within materials, element specific vibrations, and local structural descriptions identified with chemical speciation. More demanding scattering and diffraction problems can be solved such as weakly scattering materials, large unit cells and structural entities. The high collimation of the source also provides enhanced spectroscopic and diffraction resolution that gives more insight into molecular, extended and supramolecular structures. The length scales can be bridged from the atomic up to that of visible light microscopy and buried features within materials can be observed with the appropriate energy. With an increased emphasis on ease of use, such capabilities are open to exploitation for chemical challenges.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1039/b604369k
ISSNs: 1463-9076 (print)
Related URLs:
Keywords: x-ray-diffraction, absorption-spectroscopy, synchrotron-radiation, circular-dichroism, atomic-structure, xmas eamline, rh catalysts, light-source, resolution, scattering
Subjects: Q Science
Q Science > QD Chemistry
Divisions : University Structure - Pre August 2011 > School of Chemistry
ePrint ID: 44433
Accepted Date and Publication Date:
Date Deposited: 01 Mar 2007
Last Modified: 31 Mar 2016 12:18

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