Spectroscopic study of z-pinch K-shell x-ray sources

ORAL

Abstract

Fast z-pinches provide intense 1-10 keV photon energy radiation sources. Analysis of time-integrated K-shell x-ray spectra indicates electron temperatures up to 5 keV and ion densities of order 10$^{20}$ cm$^{-3}$ in the stagnated plasma created from wire array implosions on Sandia's Z machine pulsed power driver. Elliptical crystal spectrometers coupled to microchannel plate detectors, fielded previously on Z, have recently provided time-resolved spectral measurements for Al ($\sim $2 keV), stainless steel ($\sim $6.7 keV), and Cu ($\sim $8.4 keV) sources. We discuss implosion and stagnation dynamics, plasma conditions, and spectral analysis in the presence of opacity and Doppler effects.

*Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000.

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Authors

  • B. Jones

    • Sandia National Laboratories

  • G.A. Rochau

    • Sandia National Laboratories

  • J.E. Bailey

    • Sandia National Laboratories

  • D.J. Ampleford

    • Sandia National Laboratories

  • C.A. Coverdale

    • Sandia National Labs
    • SNL
    • Sandia National Laboratories
    • Sandia National Laboratory

  • S.B. Hansen

    • Sandia National Laboratories
    • Sandia National Labs

  • Christopher Jennings

    • Sandia National Laboratories

  • M.E. Cuneo

    • Sandia National Laboratories

  • Yitzhak Maron

    • Weizmann Institute
    • Weizmann Institute of Science

  • V. Fisher

    • Weizmann Institute

  • V. Bernshtam

    • Weizmann Institute

  • A. Starobinets

    • Weizmann Institute

  • L. Weingarten

    • Weizmann Institute

  • J.P. Apruzese

    • Naval Research Laboratory

  • A. Dasgupta

    • Naval Research Laboratory

  • R.W. Clark

    • Naval Research Laboratory
    • Berkeley Research Associates

  • J.W. Thornhill

    • Naval Research Laboratory

  • Kenneth Whitney

    • Naval Research Laboratory
    • Berkeley Research, Inc.
    • Berkeley Scholars, Inc.

  • J.L. Giuliani

    • Naval Research Laboratory

  • J. Davis

    • Naval Research Laboratory