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Spectroscopic measurements of Rosseland mean opacity [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
14 pages : digital, PDF file
Additional Creators
Lawrence Livermore National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The first quantitative measurement of photoabsorption in the region determining Rosseland and Planck mean opacity, is obtained for an x-ray heated iron plasma, using novel techniques and instrumentation. The plasma density of 0.0113 ± 0.0013 g/cc and temperature of 59 ± 3 eV are accurately constrained experimentally by imaging plasma expansion and observing and modeling absorption in sodium dopant ions. The measured iron absorption spectrum is compared with several newly developed opacity models. The data constrains Rosseland and Planck group means with of order 15 percent precision. This is the first quantitative experimental certification of opacity models germane to radiative transfer in LTE plasmas.
Report Numbers
E 1.99:ucrl-jc--116851
E 1.99: conf-9211211--5
conf-9211211--5
ucrl-jc--116851
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Other Subject(s)
Note
Published through SciTech Connect.
11/01/1992.
"ucrl-jc--116851"
" conf-9211211--5"
"DE94008297"
Radiative properties of hot dense matter conference,Santa Barbara, CA (United States),2-6 Nov 1992.
Wilson, B.G.; Springer, P.T.; Fields, D.F.
Funding Information
W-7405-ENG-48
View MARC record | catkey: 14745902