skip to main content

SciTech ConnectSciTech Connect

Title: X-ray continuum emission spectroscopy from hot dense matter at Gbar pressures

We have measured the time-resolved x-ray continuum emission spectrum of ∼30 times compressed polystyrene created at stagnation of spherically convergent shock waves within the Gbar fundamental science campaign at the National Ignition Facility. From an exponential emission slope between 7.7 keV and 8.1 keV photon energy and using an emission model which accounts for reabsorption, we infer an average electron temperature of 375 ± 21 eV, which is in good agreement with HYDRA-1D simulations.
Authors:
;  [1] ; ; ; ; ; ; ; ; ;  [2] ;  [3] ;  [4] ;  [5]
  1. Department of Physics, University of California, Berkeley, California 94720 (United States)
  2. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
  3. Plasma Physics Group, Radiation Physics Department, AWE plc, Reading RG7 4PR, United Kingdom and Centre for Fusion, Space and Astrophysics, University of Warwick, Coventry CV4 7AL (United Kingdom)
  4. SLAC National Accelerator Laboratory, Menlo Park, California 94309 (United States)
  5. GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt (Germany)
Publication Date:
OSTI Identifier:
22308589
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPUTERIZED SIMULATION; ELECTRON TEMPERATURE; EMISSION SPECTRA; EMISSION SPECTROSCOPY; EV RANGE; KEV RANGE; PHOTONS; POLYSTYRENE; PRESSURE RANGE MEGA PA 10-100; SHOCK WAVES; SPHERICAL CONFIGURATION; TIME RESOLUTION; US NATIONAL IGNITION FACILITY; X-RAY SPECTRA