title: Sequential Single Shot X-ray Photon Correlation Spectroscopy at the SACLA Free Electron Laser.
abstract: Hard X-ray free electron lasers allow for the first time to access dynamics of condensed matter samples ranging from femtoseconds to several hundred seconds. In particular, the exceptional large transverse coherence of the X-ray pulses and the high time-averaged flux promises to reach time and length scales that have not been accessible up to now with storage ring based sources. However, due to the fluctuations originating from the stochastic nature of the self-amplified spontaneous emission (SASE) process the application of well established techniques such as X-ray photon correlation spectroscopy (XPCS) is challenging. Here we demonstrate a single-shot based sequential XPCS study on a colloidal suspension with a relaxation time comparable to the SACLA free-electron laser pulse repetition rate. High quality correlation functions could be extracted without any indications for sample damage. This opens the way for systematic sequential XPCS experiments at FEL sources.
authors.affiliation: Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.|The Hamburg Centre of Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Germany.
authors.forename: Felix
authors.initials: F
authors.lastname: Lehmkühler
authors.affiliation: Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.
authors.forename: Paweł
authors.initials: P
authors.lastname: Kwaśniewski
authors.affiliation: Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.
authors.forename: Wojciech
authors.initials: W
authors.lastname: Roseker
authors.affiliation: Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.|The Hamburg Centre of Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Germany.
authors.forename: Birgit
authors.initials: B
authors.lastname: Fischer
authors.affiliation: Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.|The Hamburg Centre of Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Germany.
authors.forename: Martin A
authors.initials: MA
authors.lastname: Schroer
authors.affiliation: Japan Synchrotron Radiation Research Institute, 1-1-1 Kuoto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan.
authors.forename: Kensuke
authors.initials: K
authors.lastname: Tono
authors.affiliation: Japan Synchrotron Radiation Research Institute, 1-1-1 Kuoto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan.
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Katayama
authors.affiliation: Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Sprung
authors.affiliation: Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill road, Menlo Park, CA 94025, USA.
authors.forename: Marcin
authors.initials: M
authors.lastname: Sikorski
authors.affiliation: Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill road, Menlo Park, CA 94025, USA.
authors.forename: Sanghoon
authors.initials: S
authors.lastname: Song
authors.affiliation: Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill road, Menlo Park, CA 94025, USA.
authors.forename: James
authors.initials: J
authors.lastname: Glownia
authors.affiliation: Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill road, Menlo Park, CA 94025, USA.
authors.forename: Matthieu
authors.initials: M
authors.lastname: Chollet
authors.affiliation: Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill road, Menlo Park, CA 94025, USA.
authors.forename: Silke
authors.initials: S
authors.lastname: Nelson
authors.affiliation: Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill road, Menlo Park, CA 94025, USA.
authors.forename: Aymeric
authors.initials: A
authors.lastname: Robert
authors.affiliation: Department Physik, Universität Siegen, Walter-Flex-Str. 3, 57072 Siegen, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Gutt
authors.affiliation: RIKEN SPring-8 Center, 1-1-1 Kuoto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan.
authors.forename: Makina
authors.initials: M
authors.lastname: Yabashi
authors.affiliation: RIKEN SPring-8 Center, 1-1-1 Kuoto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan.
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Ishikawa
authors.affiliation: Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.|The Hamburg Centre of Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Germany.
authors.forename: Gerhard
authors.initials: G
authors.lastname: Grübel