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Proceedings Paper

The Instrument In FLAX For Very High Energy Resolution And First Direct Measurements Of Phonon Dispersion Curves With X-Rays
Author(s): E. Burkel
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Paper Abstract

Very high energy resolution of x-rays can be achieved by extreme ba,ckreflection ( Bragg angle close to 90° ) from perfect crystals. This technique is used for the instrument INELAX, recently installed at the storage ring of HASYLAB, Hamburg. Inelastic scattering of 13.8 keV x-rays can be performed with the high energy resolution of ΔΕ= (17 ± 2) me.V. First direct measurements of phonon dispersion curves with x-rays were carried out using single crystals of Be and a diamond. The longitudinal phonons were observed in the acoustic and optical range.

Paper Details

Date Published: 27 November 1989
PDF: 7 pages
Proc. SPIE 1140, X-Ray Instrumentation in Medicine and Biology, Plasma Physics, Astrophysics, and Synchrotron Radiation, (27 November 1989); doi: 10.1117/12.961858
Show Author Affiliations
E. Burkel, Sektion Physik Universit at Muncher (Germany)


Published in SPIE Proceedings Vol. 1140:
X-Ray Instrumentation in Medicine and Biology, Plasma Physics, Astrophysics, and Synchrotron Radiation

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