Inference of electron density in NIF capsules from krypton helium-β Stark lineshapes

POSTER

Abstract

The dHIRES x-ray spectrometer measures Kr Heα and Heβ spectra from NIF compressed capsules with 10-eV spectral and 30-ps temporal resolution. Theoretical calculations of the Stark-broadened lineshape of the Heβ complex (3 3P1, 1P1, 1D2) show monotonic variations with density of the line widths, line energies, and intensity of the 3 3P1 and 3 1D2 lines relative to the main, 3 1P1 peak. Comparison of the measured Kr Heβ complex line profiles with the theoretical lineshapes provides a measure of the time history of the electron density. These comparisons will be shown for four NIF shots with Kr-doped capsules

Presenters

  • K. Wayne Hill

    Princeton Univ, Princeton Plasma Physics Lab, Princeton Plasma Phys Lab, Princeton Plasma Physics Laboratory

Authors

  • K. Wayne Hill

    Princeton Univ, Princeton Plasma Physics Lab, Princeton Plasma Phys Lab, Princeton Plasma Physics Laboratory

  • M. Bitter

    Princeton Plasma Physics Lab, Princeton Plasma Physics Laboratory

  • Lan Gao

    Princeton Plasma Physics Lab, Princeton Plasma Physics Laboratory

  • Brian F Kraus

    Princeton University, Princeton Plasma Physics Lab, Princeton Plasma Physics Laboratory

  • Philip Charles Efthimion

    Princeton Plasma Physics Lab, Princeton Plasma Phys Lab, Princeton Plasma Physics Laboratory

  • Marilyn Beth Schneider

    Lawrence Livermore Natl Lab, Lawrence Livermore National Lab, Lawrence Livermore National Laboratory

  • Daniel B. Thorn

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Hui Chen

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Robert L Kauffman

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • D. A Liedahl

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Andrew G. MacPhee

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Peter Beiersdorfer

    Lawrence Livermore Natl Lab, LLNL

  • H. D. Whitley

    LLNL, Lawrence Livermore Natl Lab

  • Roberto Claudio Mancini

    Univ of Nevada - Reno, University of Nevada - Reno, Physics Department, University of Nevada, Reno, Nevada

  • Ramy Doron

    Weizmann Institute of Science

  • Evgeny Stambulchik

    Faculty of Physics, Weizmann Institute of Science, Rehovot, Israel, Weizmann Institute of Science

  • Yitzhak Maron

    Faculty of Physics, Weizmann Institute of Science, Rehovot, Israel, Weizmann Institute of Science