Using X-ray as a Probe of the Terahertz Dynamics of Disordered Systems – Complementarity with Inelastic Neutron Scattering and Future Perspectivess
( Neutron Scattering )
Publication series ： Neutron Scattering
Author： Alessandro Cunsolo
Publisher： IntechOpen
Publication year： 2016
E-ISBN: INT6069462844
P-ISBN(Paperback): 9789535122760
P-ISBN(Hardback): 9789535122760
Subject： O57 Nuclear physics, high energy physics
Keyword： 原子核物理学、高能物理学
Language： ENG
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Using X-ray as a Probe of the Terahertz Dynamics of Disordered Systems – Complementarity with Inelastic Neutron Scattering and Future Perspectivess
Description
This Chapter is devoted to a general introduction of the high resolution (meV) inelastic x-ray scattering (IXS) technique. This starts from a theoretical derivation of the IXS cross section and the demostration of its link with the spectrum of density fluctuations. The complementarity of this technique with the other mesocopic spectrocopy method, inelastic neutron scattering (INS) is discussed in detail by emphasizing differences and similarities both from the practical and the teorethical points of view. Along with this general discussion, examples are given of both an existing IXS spectrometer and a new-concept one to be soon in operation. Finally, the result of a recent joint INS and IXS experiment on water, taking advantage of the complementarity of these two techniques, are described in the last paragraphs.
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