Performance of a picosecond x-ray delay line unit at 8.39 keV

A prototype device capable of splitting an x-ray pulse into two adjustable fractions, delaying one of them with the aim to perform x-ray photon correlation spectroscopy and pump-probe type studies, was designed, manufactured, and tested. The device utilizes eight perfect silicon crystals in vertical...

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Bibliographic Details
Published in:Optics letters 2009-06, Vol.34 (12), p.1768-1770
Main Authors: ROSEKER, Wojciech, FRANZ, Hermann, SCHULTE-SCHREPPING, Horst, EHNES, Anita, LEUPOLD, Olaf, ZONTONE, Federico, ROBERT, Aymeric, GRÜBEL, Gerhard
Format: Article
Language:English
Subjects:
Electromagnetism
electron and ion optics
Exact sciences and technology
Free-electron lasers
Fundamental areas of phenomenology (including applications)
Physics
Radiation by moving charges
X-ray beams and x-ray optics
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Summary:A prototype device capable of splitting an x-ray pulse into two adjustable fractions, delaying one of them with the aim to perform x-ray photon correlation spectroscopy and pump-probe type studies, was designed, manufactured, and tested. The device utilizes eight perfect silicon crystals in vertical 90 degrees scattering geometry. Its performance has been verified with 8.39 keV synchrotron radiation. The measured throughput of the device with a Si(333) premonochromator at 8.39 keV under ambient conditions is 0.6%. Time delays up to 2.62 ns have been achieved, detected with a time resolution of 16.7 ps.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.34.001768