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Title: High resolution x-ray Thomson scattering measurements from cryogenic hydrogen jets using the linac coherent light source

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4959792· OSTI ID:22596510
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  1. SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States)
  2. European XFEL, Schenefeld (Germany)
  3. Germany
  4. Helmholtz Zentrum Dresden-Rossendorf, Dresden (Germany)
  5. Department of Physics, University of California Berkeley, Berkeley, California 94720 (United States)

We present the first spectrally resolved measurements of x-rays scattered from cryogenic hydrogen jets in the single photon counting limit. The 120 Hz capabilities of the LCLS, together with a novel hydrogen jet design [J. B. Kim et al., Rev. Sci. Instrum. (these proceedings)], allow for the ability to record a near background free spectrum. Such high-dynamic-range x-ray scattering measurements enable a platform to study ultra-fast, laser-driven, heating dynamics of hydrogen plasmas. This measurement has been achieved using two highly annealed pyrolytic graphite crystal spectrometers to spectrally resolve 5.5 keV x-rays elastically and inelastically scattered from cryogenic hydrogen and focused on Cornell-SLAC pixel array detectors [S. Herrmann et al., Nucl. Instrum. Methods Phys. Res., Sect. A 718, 550 (2013)].

OSTI ID:
22596510
Journal Information:
Review of Scientific Instruments, Vol. 87, Issue 11; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
Country of Publication:
United States
Language:
English

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Fifth User Workshop on high-power lasers at the Linac Coherent Light Source journal September 2018
High-pressure chemistry of hydrocarbons relevant to planetary interiors and inertial confinement fusion journal May 2018