title: Performance of a picosecond x-ray delay line unit at 8.39 keV.
abstract: 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.
authors.affiliation: Hamburger Synchrotronstrahlungslabor am Deutschen Elektronen Synchrotron (DESY), Notkestrasse 85, D-22603 Hamburg, Germany. wojciech.roseker@desy.de
authors.forename: Wojciech
authors.initials: W
authors.lastname: Roseker
authors.forename: Hermann
authors.initials: H
authors.lastname: Franz
authors.forename: Horst
authors.initials: H
authors.lastname: Schulte-Schrepping
authors.forename: Anita
authors.initials: A
authors.lastname: Ehnes
authors.forename: Olaf
authors.initials: O
authors.lastname: Leupold
authors.forename: Federico
authors.initials: F
authors.lastname: Zontone
authors.forename: Aymeric
authors.initials: A
authors.lastname: Robert
authors.forename: Gerhard
authors.initials: G
authors.lastname: Grübel