NDLI: Comprehensive analysis of implosion dynamics of Mo and Al wire arrays arranged in Triple Planar or nested cylindrical wire arrays dependent on load geometry

Content Provider	IEEE Xplore Digital Library
Author	Weller, M.E. Safronova, A.S. Kantsyrev, V.L. Esaulov, A.A. Yilmaz, M.F. Williamson, K.M. Shrestha, I. Osborne, G.C. Ouart, N.D. Shlyaptseva, V.
Copyright Year	2010
Description	Author affiliation: University of Nevada, Reno, NV 89557, USA (Weller, M.E.; Safronova, A.S.; Kantsyrev, V.L.; Esaulov, A.A.; Yilmaz, M.F.; Williamson, K.M.; Shrestha, I.; Osborne, G.C.; Ouart, N.D.; Shlyaptseva, V.)
Abstract	Triple Planar Wire Arrays (TPWA) consisted from three planes made of Mo (uniform) or from Mo and Al wire planes (combined). Each plane from Mo or Al wires was almost the same mass and therefore the total linear mass of both uniform and combined TPWAs was about 115 µg/cm. The previous results with 3 mm between planes are revisited. New experiments with the same TPWAs but with a reduced interwire gap of 1.5 mm that showed high yield of 25 kJ (close to the highest yield from Mo double planar wire arrays) are presented and analyzed. In addition, implosion dynamics and radiative properties of combined nested cylindrical wire arrays (NCWA) made of the same size Mo and Al wires (as in TPWAs) were compared with TPWAs, and similarity and differences are discussed. 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. Implosion dynamics were analyzed with the wire ablation dynamics model. Non-LTE kinetic modeling was utilized to derive plasma electron temperature and density and to estimate opacity effects in K-shell Al lines. In particular, spatially resolved L-shell Mo plasma parameters were determined from TISR spectra. Time-gated (from TGSI data) and spatially-resolved (from TISR data) K-shell Al and Mg plasma parameters were modeled. In result, a comprehensive analysis and comparison of L-shell and K-shell plasma parameters for TPWAs with different geometries as well as for NCWAs was accomplished. Future directions of this work are discussed.
Starting Page	1
Ending Page	1
File Size	195574
Page Count	1
File Format	PDF
ISBN	9781424454747
ISSN	07309244
e-ISBN	9781424454761
e-ISBN	9781424454754
DOI	10.1109/PLASMA.2010.5534070
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wire Geometry X-ray lasers Plasma temperature Plasma density Spatial resolution Plasma x-ray sources Diodes Bolometers Laser ablation
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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