skip to main content

DOE PAGESDOE PAGES

This content will become publicly available on August 25, 2018

Title: Measurements of the K -Shell Opacity of a Solid-Density Magnesium Plasma Heated by an X-Ray Free-Electron Laser

We present measurements of the spectrally resolved x rays emitted from solid-density magnesium targets of varying sub-μm thicknesses isochorically heated by an x-ray laser. The data exhibit a largely thickness independent source function, allowing the extraction of a measure of the opacity to K-shell x rays within well-defined regimes of electron density and temperature, extremely close to local thermodynamic equilibrium conditions. The deduced opacities at the peak of the Kα transitions of the ions are consistent with those predicted by detailed atomic-kinetics calculations.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [3] ;  [3] ;  [4] ;  [4] ;  [4] ;  [4] ;  [4] ;  [5] ;  [6] ;  [1]
  1. Univ. of Oxford (United Kingdom)
  2. Intl Atomic Energy Agency (IAEA), Vienna (Austria)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  4. Academy of Sciences of the Czech Republic (ASCR), Prague (Czech Republic). Inst. of Physics
  5. European X-ray Free-Electron Laser (XFEL), Schenefeld (Germany)
  6. Univ. of California, Berkeley, CA (United States)
Publication Date:
Grant/Contract Number:
AC02-76SF00515; EP/L000849/1; EP/H035877/1; EP/P015794/1; 17-05076S; 17-05167S
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 119; Journal Issue: 8; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
OSTI Identifier:
1390602
Alternate Identifier(s):
OSTI ID: 1376934