Performance of a picosecond x-ray delay line unit at 839 keV
2009; Optica Publishing Group; Volume: 34; Issue: 12 Linguagem: Inglês
10.1364/ol.34.001768
ISSN1539-4794
AutoresWojciech Roseker, H. Franz, Horst Schulte-Schrepping, A. Ehnes, O. Leupold, Federico Zontone, A. Robert, G. Grübel,
Tópico(s)X-ray Spectroscopy and Fluorescence Analysis
ResumoA 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.
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