DocumentCode :
2209763
Title :
Simulations of the radiation-flow within a silica-aerogel target
Author :
Aubrey, J.B.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
fYear :
2002
fDate :
26-30 May 2002
Firstpage :
228
Abstract :
Summary form only given. The interaction of a silica-aerogel target with a source of soft X-rays is calculated using two-dimensional Lagrangian and Eulerian codes. The radiation is generated by a Z-pinch contained within a vacuum hohlraum at Sandia National Laboratories in Albuquerque, NM. The source has been well-characterized using both experiments and simulations. Burn-through foils are used to shield the targets during the implosion phase of the pinch, generation of x-rays and equilibration of the radiation within the hohlraum. The impact of the foils on the experiments that are fielded is still under study. One of the issues under consideration in the present work is the effect of the radiation on the immediate environment of the target (including the burn-through foil). Parameter studies on the target itself have been done using different radiation-flow models. The effects of uncertainties in EOS´s and opacities are presented as well.
Keywords :
X-ray effects; Z pinch; aerogels; digital simulation; plasma simulation; plasma switches; silicon compounds; Eulerian codes; X-ray generation; burn-through foils; explosive opening switches; implosion phase; opacities; radiation equilibration; radiation flow simulations; silica-aerogel target; soft X-ray sources; target shielding; two-dimensional Lagrangian codes; vacuum hohlraum; Filtering; Filters; Finite difference methods; Frequency; Laboratories; Lagrangian functions; Physics computing; Plasma simulation; Uncertainty; X-rays;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Plasma Science, 2002. ICOPS 2002. IEEE Conference Record - Abstracts. The 29th IEEE International Conference on
Conference_Location :
Banff, Alberta, Canada
Print_ISBN :
0-7803-7407-X
Type :
conf
DOI :
10.1109/PLASMA.2002.1030484
Filename :
1030484
Link To Document :
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