Toward ultrafast time-resolved Debye-Scherrer x-ray diffraction using a laser-plasma source.
An elliptical glass capillary has been used to focus ultrashort Cu K alpha x-ray pulses emitted from a femtosecond laser-produced plasma. Due to its high magnification (7x), the optic transforms the divergent x-ray emission of the plasma into a quasicollimated x-ray beam with a divergence of only 0.18 degrees. As an application we demonstrate the possibility to perform Debye-Scherrer diffraction experiments with the simultaneous detection of several diffraction orders. This will allow one to extend time-resolved x-ray diffraction with femtosecond laser-plasma x-ray sources to a much wider range of materials, which are not easily available as single crystals.
Shymanovich
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Institut für Experimentelle Physik, Universität Duisburg-Essen, Lotharstr. 1, 47048 Duisburg, Germany. uladzimir.shymanovich@uni-due.de
Nicoul
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Lu
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Kähle
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Tarasevitch
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A
Sokolowski-Tinten
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K
von der Linde
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