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Title: Measurements and simulations of the ablation stage of wire arrays with different initial wire sizes

Abstract

Comparisons of 20 mm diameter, 300-wire tungsten arrays with different initial wire sizes were made on the 20 MA Sandia Z facility. Radiographic measurements of each wire array, taken at the same point in the current during the wire ablation stage, show systematic differences. A detailed comparison of the radiography and self-emission data with simulations and analytic models suggests that a variation in the mass ablation rate with wire size may be responsible.

Authors:
; ; ; ; ; ;  [1];  [2];  [3];  [4]
  1. Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185-1193 (United States)
  2. Blackett Laboratory, Imperial College, London SW7 2BW (United Kingdom)
  3. Ktech Corporation, 1300 Eubank Boulevard SE, Albuquerque, New Mexico 87123 (United States)
  4. Prism Computational Sciences, Madison, Wisconsin 53711 (United States)
Publication Date:
OSTI Identifier:
20782755
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 13; Journal Issue: 4; Other Information: DOI: 10.1063/1.2184307; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ABLATION; COMPARATIVE EVALUATIONS; ELECTRIC CURRENTS; EXPLODING WIRES; ICF DEVICES; PLASMA DIAGNOSTICS; PLASMA SIMULATION; TUNGSTEN; VARIATIONS

Citation Formats

Sinars, D.B., Cuneo, M.E., Yu, E.P., Jones, B., Mehlhorn, T.A., Porter, J.L., Wenger, D.F., Lebedev, S.V., Cochrane, K.R., and MacFarlane, J.J. Measurements and simulations of the ablation stage of wire arrays with different initial wire sizes. United States: N. p., 2006. Web. doi:10.1063/1.2184307.
Sinars, D.B., Cuneo, M.E., Yu, E.P., Jones, B., Mehlhorn, T.A., Porter, J.L., Wenger, D.F., Lebedev, S.V., Cochrane, K.R., & MacFarlane, J.J. Measurements and simulations of the ablation stage of wire arrays with different initial wire sizes. United States. doi:10.1063/1.2184307.
Sinars, D.B., Cuneo, M.E., Yu, E.P., Jones, B., Mehlhorn, T.A., Porter, J.L., Wenger, D.F., Lebedev, S.V., Cochrane, K.R., and MacFarlane, J.J. Sat . "Measurements and simulations of the ablation stage of wire arrays with different initial wire sizes". United States. doi:10.1063/1.2184307.
@article{osti_20782755,
title = {Measurements and simulations of the ablation stage of wire arrays with different initial wire sizes},
author = {Sinars, D.B. and Cuneo, M.E. and Yu, E.P. and Jones, B. and Mehlhorn, T.A. and Porter, J.L. and Wenger, D.F. and Lebedev, S.V. and Cochrane, K.R. and MacFarlane, J.J.},
abstractNote = {Comparisons of 20 mm diameter, 300-wire tungsten arrays with different initial wire sizes were made on the 20 MA Sandia Z facility. Radiographic measurements of each wire array, taken at the same point in the current during the wire ablation stage, show systematic differences. A detailed comparison of the radiography and self-emission data with simulations and analytic models suggests that a variation in the mass ablation rate with wire size may be responsible.},
doi = {10.1063/1.2184307},
journal = {Physics of Plasmas},
number = 4,
volume = 13,
place = {United States},
year = {Sat Apr 15 00:00:00 EDT 2006},
month = {Sat Apr 15 00:00:00 EDT 2006}
}
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