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  • Title: Picosecond time-resolved laser pump/X-ray probe experiments using a gated single-photon-counting area detector.
    Author: Ejdrup T, Lemke HT, Haldrup K, Nielsen TN, Arms DA, Walko DA, Miceli A, Landahl EC, Dufresne EM, Nielsen MM.
    Journal: J Synchrotron Radiat; 2009 May; 16(Pt 3):387-90. PubMed ID: 19395803.
    Abstract:
    The recent developments in X-ray detectors have opened new possibilities in the area of time-resolved pump/probe X-ray experiments; this article presents the novel use of a PILATUS detector to achieve X-ray pulse duration limited time-resolution at the Advanced Photon Source (APS), USA. The capability of the gated PILATUS detector to selectively detect the signal from a given X-ray pulse in 24 bunch mode at the APS storage ring is demonstrated. A test experiment performed on polycrystalline organic thin films of alpha-perylene illustrates the possibility of reaching an X-ray pulse duration limited time-resolution of 60 ps using the gated PILATUS detector. This is the first demonstration of X-ray pulse duration limited data recorded using an area detector without the use of a mechanical chopper array at the beamline.
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