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Title: Measurements of the mass distribution and instability growth for wire-array Z-pinch implosions driven by 14-20 MA

Abstract

The mass distribution and axial instability growth of wire-array Z-pinch implosions driven by 14-20 MA has been studied using high-resolution, monochromatic x-ray backlighting diagnostics. A delayed implosion is consistently observed in which persistent, dense wire cores continuously ablate plasma until they dissipate and the main implosion begins. In arrays with small interwire gaps, azimuthally correlated axial instabilities appear during the wire ablation stage and subsequently seed the early growth of magneto-Rayleigh-Taylor instabilities. The instabilities create a distributed implosion front with trailing mass that may limit the peak radiation power.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. Sandia National Laboratories, P. O. Box 5800, Albuquerque, New Mexico 87185 (United States)
Publication Date:
OSTI Identifier:
20736595
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 12; Journal Issue: 5; Other Information: DOI: 10.1063/1.1876272; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; EXPLODING WIRES; IMPLOSIONS; INSTABILITY GROWTH RATES; LONGITUDINAL PINCH; MASS DISTRIBUTION; PLASMA DIAGNOSTICS; RAYLEIGH-TAYLOR INSTABILITY

Citation Formats

Sinars, D.B., Cuneo, M.E., Jones, B., Coverdale, C.A., Nash, T.J., Mazarakis, M.G., Porter, J.L., Deeney, C., Wenger, D.F., Adams, R.G., Yu, E.P., Bliss, D.E., and Sarkisov, G.S. Measurements of the mass distribution and instability growth for wire-array Z-pinch implosions driven by 14-20 MA. United States: N. p., 2005. Web. doi:10.1063/1.1876272.
Sinars, D.B., Cuneo, M.E., Jones, B., Coverdale, C.A., Nash, T.J., Mazarakis, M.G., Porter, J.L., Deeney, C., Wenger, D.F., Adams, R.G., Yu, E.P., Bliss, D.E., & Sarkisov, G.S. Measurements of the mass distribution and instability growth for wire-array Z-pinch implosions driven by 14-20 MA. United States. doi:10.1063/1.1876272.
Sinars, D.B., Cuneo, M.E., Jones, B., Coverdale, C.A., Nash, T.J., Mazarakis, M.G., Porter, J.L., Deeney, C., Wenger, D.F., Adams, R.G., Yu, E.P., Bliss, D.E., and Sarkisov, G.S. Sun . "Measurements of the mass distribution and instability growth for wire-array Z-pinch implosions driven by 14-20 MA". United States. doi:10.1063/1.1876272.
@article{osti_20736595,
title = {Measurements of the mass distribution and instability growth for wire-array Z-pinch implosions driven by 14-20 MA},
author = {Sinars, D.B. and Cuneo, M.E. and Jones, B. and Coverdale, C.A. and Nash, T.J. and Mazarakis, M.G. and Porter, J.L. and Deeney, C. and Wenger, D.F. and Adams, R.G. and Yu, E.P. and Bliss, D.E. and Sarkisov, G.S.},
abstractNote = {The mass distribution and axial instability growth of wire-array Z-pinch implosions driven by 14-20 MA has been studied using high-resolution, monochromatic x-ray backlighting diagnostics. A delayed implosion is consistently observed in which persistent, dense wire cores continuously ablate plasma until they dissipate and the main implosion begins. In arrays with small interwire gaps, azimuthally correlated axial instabilities appear during the wire ablation stage and subsequently seed the early growth of magneto-Rayleigh-Taylor instabilities. The instabilities create a distributed implosion front with trailing mass that may limit the peak radiation power.},
doi = {10.1063/1.1876272},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 5,
volume = 12,
place = {United States},
year = {2005},
month = {5}
}