DocumentCode :
2880144
Title :
Analysis of radiation from uniform and combined Ag planar wire arrays
Author :
Weller, M.E. ; Safronova, A.S. ; Kantsyrev, V.L. ; Esaulov, A.A. ; Stafford, A. ; Williamson, K.M. ; Shrestha, I. ; Osborne, G.C. ; Shlyaptseva, V. ; Keim, S. ; Hansen, S.B.
Author_Institution :
Univ. of Nevada, Reno, NV, USA
fYear :
2011
fDate :
26-30 June 2011
Firstpage :
1
Lastpage :
1
Abstract :
Summary form only given. Experiments with Ag, uniform and combined, single and multi-planar wire arrays (PWAs) are presented. Mo has been extensively studied in previous years and has shown to have high electron temperature (1400 eV) and energy output (25 kJ), which is of interest for future applications of inertial confinement fusion. Preliminary results on Ag single PWAs have shown promising results of even higher temperatures and energies, indicating the importance of future studies. All experiments were performed on the Zebra generator at UNR. A set of diagnostics included fast, filtered x-ray diodes; a Ni bolometer; laser shadowgraphy and streak setups; time-gated and time-integrated x-ray pinhole cameras; and time-integrated spatially resolved (TISR) and time-gated spatially-integrated (TGSI) x-ray spectrometers. The acquisition of spatial and temporal gradients in L-shell plasmas of very high mid-Z elements is of interest. In particular, the understanding of the time evolution of these plasmas is a critical next step of research. Implosion dynamics were analyzed with the wire ablation dynamics model. Non-LTE kinetic modeling was utilized to derive plasma electron temperature and density of L-shell Mo and Ag, which includes a new updated model of Ag presented for the first time. Further applications to pulse shaping and possible changes in opacity effects with different mixtures of Ag and Mo are also discussed. In result, the first analysis and comparison of L-shell Ag uniform and combined PWAs was accomplished.
Keywords :
molybdenum; plasma X-ray sources; plasma density; plasma diagnostics; plasma inertial confinement; plasma temperature; silver; Ag; Mo; Zebra generator; combined Ag planar wire array; filtered X-ray diode; high electron temperature; implosion dynamics; inertial confinement fusion; laser shadowgraphy; multiplanar wire array; nonLTE kinetic model; plasma diagnostics; plasma electron density; plasma electron temperature; radiation analysis; spatial acquisition; time-gated X-ray pinhole camera; time-integrated X-ray pinhole camera; time-integrated spatially resolved X-ray spectrometer; uniform Ag planar wire array; wire ablation dynamics model; Wires;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Plasma Science (ICOPS), 2011 Abstracts IEEE International Conference on
Conference_Location :
Chicago, IL
ISSN :
0730-9244
Print_ISBN :
978-1-61284-330-8
Electronic_ISBN :
0730-9244
Type :
conf
DOI :
10.1109/PLASMA.2011.5992973
Filename :
5992973
Link To Document :
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