Effect of Ion Temperature on Spectroscopic Electron Temperature Diagnosis

ORAL

Abstract

Ratios of lines from different ionization stages are often used to diagnose electron temperature in Z pinches. Populations of the various stages can be influenced by photoexcitation to excited states, from which ionization proceeds very rapidly. The ion temperature affects the line width, opacity, and the photoexcitation rate, therefore the line ratios, and the inferred electron temperature. We discuss a practical example where this effect is important: Ar gas-puff shot Z2382.

*Work supported by DOE/NNSA, and by Sandia National Laboratories. Sandia National Laboratories is a multiprogram laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U. S. DOE's NNSA.

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Authors

  • J.P. Apruzese

    • Naval Research Laboratory

  • J.L. Giuliani

    • Naval Research Laboratory

  • J.W. Thornhill

    • Naval Research Laboratory

  • B. Jones

    • Sandia National Laboratories

  • S.B. Hansen

    • Sandia National Laboratories

  • C.A. Jennings

    • Sandia National Laboratories

  • D.J. Ampleford

    • Sandia National Laboratories

  • A.J. Harvey-Thompson

    • Sandia National Laboratories

  • M.E. Cuneo

    • Sandia National Laboratories