Use of MERL for Stark-broadening Analysis on Opacity-on-NIF

ORAL

Abstract

The Opacity-on-NIF campaign1,2 measures transmission to provide opacity data for Fe and other elements to help address the discrepancy between theory and Opacity-on-Z data3. The Opacity-on-NIF experiments have worked to improve reproducibility and correct for backgrounds, and have reached the point where comparison to Stark broadened line shapes4 (using MERL) can become reliable for extracting areal density. This can be compared to areal density from sample expansion measurements5,6,7. While an initial analysis has been previously shown, comparison to data at different stages of corrections will illustrate improved accuracy.





  1. T. S. Perry, et al, HEDP 35, 100728 (2020)

    R. F. Heeter, T.S. Perry, H.M. Johns, ATOMS 6, 57 (2018)

    J.E. Bailey, T. Nagayama, G. P.Loisel et al., Nature 517 56-67, (2015)

    J. E. Bailey, G. A. Rochau, R. C. Mancini et al, RSI 79, 113104 (2008).

    E.S. Dodd, B. G. DeVolder, M.E. Martin et al, POP 25, 063301 (2018)

    T. Cardenas, D.W. Schmidt, E. S. Dodd et al, Fusion Sci. Technol. 73, 458 (2018)

    Y. P. Opachich, R. F. Heeter, H. M. Johns, submitted to RSI for HTPD (2022)




*Los Alamos National Laboratory, an affirmative action/equal opportunity employer, is operated by Triad National Security, LLC for the National Nuclear SecurityAdministration of U.S. Department of Energy under contract 89233218CNA000001.

–

Presenters

  • Heather M Johns

    • Los Alamos National Laboratory
    • Los Alamos Natl Lab

Authors

  • Heather M Johns

    • Los Alamos National Laboratory
    • Los Alamos Natl Lab

  • Robert F Heeter

    • Lawrence Livermore Natl Lab

  • Theodore S Perry

    • Los Alamos Natl Lab

  • Yekaterina P Opachich

    • Lawrence Livermore National Laboratory

  • David P Kilcrease

    • Los Alamos Natl Lab

  • Roberto C Mancini

    • University of Nevada, Reno

  • Eric C Dutra

    • Nevada National Security Site

  • Matthew S Wallace

    • Nevada National Security Site

  • Evan S Dodd

    • Los Alamos Natl Lab

  • Natalia S Vinyard

    • Los Alamos National Laboratory
    • Los Alamos Natl Lab

  • Richard A London

    • Lawrence Livermore Natl Lab

  • Manolo Sherrill

    • Los Alamos Natl Lab

  • Brian G Wilson

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab

  • Carlos A Iglesias

    • Lawrence Livermore Natl Lab

  • Thomas H Day

    • Los Alamos National Laboratory
    • Los Alamos Natl Lab

  • Todd J Urbatsch

    • Los Alamos National Laboratory

  • Sean M Finnegan

    • Los Alamos National Laboratory

  • Taisuke Nagayama

    • Sandia National Laboratories

  • Gregory A Rochau

    • Sandia National Laboratories