HED: Opacity at Z and NIF

Presentations

• Progress in understanding stellar interior opacity with laboratory experiments at Z

  ORAL

  Nov. 19, 2025, 2:00 PM – Nov. 19, 2025, 2:12 PM

  Presenters

  • James Edward Bailey

    Sandia National Laboratories

  Authors

  • James Edward Bailey

    Sandia National Laboratories

  • Guillaume P Loisel

    Sandia National Laboratories

  • Taisuke N Nagayama

    Sandia National Laboratories

  • Daniel P Aberg

    Lawrence Livermore National Laboratory

  • Christophe Blancard

    CEA

  • James P Colgan

    Los Alamos National Laboratory (LANL)

  • Philippe Cosse

    CEA

  • Greg S Dunham

    Sandia National Laboratories

  • Gerald Faussurier

    CEA

  • Christopher J Fontes

    Los Alamos National Laboratory (LANL)

  • Franck Gilleron

    CEA

  • Igor E Golovkin

    Prism Computational Sciences, Inc.

  • Thomas A Gomez

    University of Colorado, Boulder

  • Ming F Gu

    Prism Computational Sciences, Inc.

  • Stephanie B Hansen

    Sandia National Laboratories

  • Carlos A Iglesias

    Lawrence Livermore Natl Lab

  • Daniel C Mayes

    University of Texas at Austin

  • Jean-Christophe Pain

    French Alternative Energies and Atomic Energy Commission

  View abstract →

• Progress towards absolute time-resolved opacity measurements at Z

  ORAL

  Nov. 19, 2025, 2:12 PM – Nov. 19, 2025, 2:24 PM

  Publication: [1] G. P. Loisel, J. E. Bailey, T. Nagayama, et al., Phys. Rev. Lett., 134, 9, p. 095101, (2025).

  Presenters

  • Guillaume P Loisel

    Sandia National Laboratories

  Authors

  • Guillaume P Loisel

    Sandia National Laboratories

  • James Edward Bailey

    Sandia National Laboratories

  • Taisuke N Nagayama

    Sandia National Laboratories

  • Greg S Dunham

    Sandia National Laboratories

  • Stephanie B Hansen

    Sandia National Laboratories

  • Thomas A Gomez

    University of Texas at Austin

  • Brent M Jones

    Sandia National Laboratories

  • Paul Gard

    Sandia National Laboratories

  • Gregory A. Rochau

    Sandia National Laboratories

  • Anthony P Colombo

    Sandia National Laboratories

  • Aaron Edens

    Sandia National Laboratories

  • Quinn Looker

    Sandia National Laboratories

  • Mark W Kimmel

    Sandia National Laboratories

  • John Stahoviak

    Nalus Scientific

  • John Porter

    Sandia National Laboratories

  • James P Colgan

    Los Alamos National Laboratory (LANL)

  • Christopher J Fontes

    Los Alamos National Laboratory (LANL)

  • David P Kilcrease

    Los Alamos National Laboratory (LANL)

  • Carlos A Iglesias

    Lawrence Livermore Natl Lab

  • Brian G Wilson

    Lawrence Livermore National Laboratory

  • Daniel P Aberg

    Lawrence Livermore National Laboratory

  View abstract →

• Progress on the oxygen opacity experiments at Z

  ORAL

  Nov. 19, 2025, 2:24 PM – Nov. 19, 2025, 2:36 PM

  Presenters

  • Daniel C Mayes

    University of Texas at Austin

  Authors

  • Daniel C Mayes

    University of Texas at Austin

  • James Edward Bailey

    Sandia National Laboratories

  • Taisuke N Nagayama

    Sandia National Laboratories

  • Guillaume P Loisel

    Sandia National Laboratories

  • Greg S Dunham

    Sandia National Laboratories

  • Stephanie B Hansen

    Sandia National Laboratories

  View abstract →

• Rad-MHD Simulations of the SNL Opacity Platform

  ORAL

  Nov. 19, 2025, 2:36 PM – Nov. 19, 2025, 2:48 PM

  Presenters

  • Mark Harry Hess

    Sandia National Laboratories

  Authors

  • Mark Harry Hess

    Sandia National Laboratories

  • Nathaniel D Hamlin

    Sandia National Laboratories

  • Taisuke N Nagayama

    Sandia National Laboratories

  • Guillaume P Loisel

    Sandia National Laboratories

  • James Edward Bailey

    Sandia National Laboratories

  • Stephanie B Hansen

    Sandia National Laboratories

  View abstract →

• Using laboratory time-resolved emission spectra to benchmark models for accretion-powered objects

  ORAL

  Nov. 19, 2025, 2:48 PM – Nov. 19, 2025, 3:00 PM

  Presenters

  • Isaac D Huegel

  Authors

  • Isaac D Huegel

  • Patricia B Cho

    University of Texas at Austin

  • Guillaume P Loisel

    Sandia National Laboratories

  • Roberto Claudio Mancini

    U Nevada Reno, University of Nevada Reno, University of Nevada, Reno

  • Heath Joseph LeFevre

  • Matthew R Trantham

  • Michael Houston Montgomery

    University of Texas at Austin

  • Don E Winget

    University of Texas at Austin, The University of Texas at Austin

  • Carolyn C Kuranz

    OCC

  View abstract →

• Fundamental Science on the Z-Machine: Photoionization Fronts Relevant to Astrophysics

  ORAL

  Nov. 19, 2025, 3:00 PM – Nov. 19, 2025, 3:12 PM

  Presenters

  • Michael Springstead

  Authors

  • Michael Springstead

  • Heath Joseph LeFevre

  • Isaac D Huegel

  • Nicholas P Ernst

    University of Michigan - Ann Arbor

  • Guillaume P Loisel

    Sandia National Laboratories

  • James Edward Bailey

    Sandia National Laboratories

  • Sallee Rae Klein

  • Jill Schell

  • R Paul Drake

  • Carolyn C Kuranz

    OCC

  View abstract →

• Overview of the Opacity-on-NIF Experiments and Recent Progress

  ORAL

  Nov. 19, 2025, 3:12 PM – Nov. 19, 2025, 3:24 PM

  Presenters

  • Robert F Heeter

    Lawrence Livermore National Laboratory

  Authors

  • Robert F Heeter

    Lawrence Livermore National Laboratory

  • Heather M Johns

    Los Alamos National Laboratory (LANL)

  • Patricia B Cho

    Lawrence Livermore National Lab

  • Yekaterina P Opachich

    Lawrence Livermore National Laboratory, Lawrence Livermore National Lab

  • Daniel P Aberg

    Lawrence Livermore National Laboratory

  • James Edward Bailey

    Sandia National Laboratories

  • Paul A Bradley

    Los Alamos National Laboratory (LANL)

  • Thomas H Day

    LANL

  • Eric C Dutra

    Nevada National Security Site (NNSS)

  • Christopher J Fontes

    Los Alamos National Laboratory (LANL)

  • Stephanie B Hansen

    Sandia National Laboratories

  • Bryce Hobbs

    University of Texas at Austin

  • Matthias Hohenberger

    Lawrence Livermore National Laboratory

  • Pawel Kozlowski

    Los Alamos National Laboratory

  • Daniel C Mayes

    University of Texas at Austin

  • Taisuke N Nagayama

    Sandia National Laboratories

  • Annabelle E Peterson

    Lawrence Livermore National Laboratory

  • Gregory A. Rochau

    Sandia National Laboratories

  • Manolo Sherrill

    Los Alamos National Laboratory (LANL)

  • Todd J Urbatsch

    Los Alamos National Laboratory (LANL)

  • Matthew S Wallace

    Nevada National Security Sites

  • Ted S Perry

    Los Alamos National Laboratory

  View abstract →

• Deployment and Qualification of the Time Resolved Opacity Spectrometer (OpSpecTR) for the NIF Iron Opacity Campaign

  ORAL

  Nov. 19, 2025, 3:24 PM – Nov. 19, 2025, 3:36 PM

  Publication: Y. P. Opachich, B. Golick, J. G. Buscho, A. C. Carpenter, B. T. Funsten, A. M. Garafalo, J. Heinmiller, E. C. Dutra, R. Knight, D. Max, D. C. Mayes, S. B. Morioka, K. J. Moy, P. R. Nyholm, A. E. Peterson, R. B. Petre, R. S. Posadas, A. M. Sharp, V. Tran, S. D. Trent, M. S. Wallace, D. E. Winget, T. S. Perry, T. J. Urbatsch and R. F. Heeter, Rev Sci Instrum 95 (8) (2024).

  Presenters

  • Yekaterina P Opachich

    Lawrence Livermore National Laboratory

  Authors

  • Yekaterina P Opachich

    Lawrence Livermore National Laboratory

  • Justin Buscho

    Lawrence Livermore National Laboratory

  • Arthur C Carpenter

    Lawrence Livermore National Laboratory

  • Jacob W Corbin

    Lawrence Livermore National Laboratory

  • Eric C Dutra

    Nevada National Security Site (NNSS)

  • Jim A Emig

    Lawrence Livermore Natl Lab

  • Brad T Funsten

    Lawrence Livermore National Laboratory

  • Anne M Garafalo

    Lawrence Livermore National Laboratory

  • James M Heinmiller

    Nevada National Security Sites

  • Heather M Johns

    Los Alamos National Laboratory (LANL)

  • Cody K Kenstler

    Nevada National Security Sites

  • Russell Knight

    Nevada National Security Sites

  • Kris Larsen

    Nevada National Security Sites

  • Brandi Lechleiter

    Lawrence Livermore National Laboratory

  • Don Max

    Lawrence Livermore National Laboratory, Nevada National Security Sites

  • Dan C Mayes

    University of Texas at Austin

  • Brandon Morioka

    Lawrence Livermore National Laboratory

  • Kenneth J Moy

    Special Technologies Laboratory (STL)

  • Peter R Nyholm

    Lawrence Livermore National Laboratory

  • Nathan Palmer

    Lawrence Livermore National Laboratory

  • Annabelle E Peterson

    Lawrence Livermore National Laboratory

  • R. B Petre

    Lawrence Livermore National Laboratory

  • Renee Posadas

    Lawrence Livermore National Laboratory

  • Andrew M Sharp

    Lawrence Livermore National Laboratory

  • W. Stolte

    Nevada National Security Sites

  • J. Tabimina

    LLNL

  • Vu Tran

    Nevada National Security Sites

  • Samuel D Trent

    Nevada National Security Sites

  • Matthew S Wallace

    Nevada National Security Sites

  • Don E Winget

    University of Texas at Austin, The University of Texas at Austin

  • Thomas Archuleta

    Los Alamos National Laboratory

  • Ted S Perry

    Los Alamos National Laboratory

  • Todd J Urbatsch

    Los Alamos National Laboratory (LANL)

  • Robert F Heeter

    Lawrence Livermore National Laboratory

  View abstract →

• First results of opacity measurements of Fe using OpSpecTR

  ORAL

  Nov. 19, 2025, 3:36 PM – Nov. 19, 2025, 3:48 PM

  Presenters

  • Pawel Marek Kozlowski

    Los Alamos National Laboratory (LANL)

  Authors

  • Pawel Marek Kozlowski

    Los Alamos National Laboratory (LANL)

  • Yekaterina P Opachich

    Lawrence Livermore National Laboratory, Lawrence Livermore National Lab

  • Matthias Hohenberger

    Lawrence Livermore National Laboratory

  • Patricia B Cho

    University of Texas at Austin

  • Christopher J Fontes

    Los Alamos National Laboratory (LANL)

  • Nomita Vazirani

    Los Alamos National Laboratory

  • Paul A Bradley

    Los Alamos National Laboratory (LANL)

  • Joseph M Kasper

    Los Alamos National Laboratory

  • Ethan L Smith

    Los Alamos National Laboratory

  • Theodore S Perry

    Los Alamos National Laboratory (LANL)

  • Todd J Urbatsch

    Los Alamos National Laboratory (LANL)

  • Robert F Heeter

    Lawrence Livermore National Laboratory

  • Heather M Johns

    Los Alamos National Laboratory (LANL)

  View abstract →

• Uncertainty Quantification for Opacity-on-NIF

  ORAL

  Nov. 19, 2025, 3:48 PM – Nov. 19, 2025, 4:00 PM

  Presenters

  • Patricia B Cho

    University of Texas at Austin

  Authors

  • Patricia B Cho

    University of Texas at Austin

  • Robert F Heeter

    Lawrence Livermore National Laboratory

  • Taisuke N Nagayama

    Sandia National Laboratories

  • Daniel C Mayes

    University of Texas at Austin

  • Bryce Hobbs

    University of Texas at Austin

  • Matthias Hohenberger

    Lawrence Livermore National Laboratory

  • Matthew S Wallace

    Nevada National Security Sites

  • James Edward Bailey

    Sandia National Laboratories

  • Guillaume P Loisel

    Sandia National Laboratories

  • Yekaterina P Opachich

    Lawrence Livermore National Laboratory, Lawrence Livermore National Lab

  • Heather M Johns

    Los Alamos National Laboratory (LANL)

  • Todd J Urbatsch

    Los Alamos National Laboratory (LANL)

  • Ted S Perry

    Los Alamos National Laboratory

  View abstract →

• Opacity on NIF: Post Shot Analysis of FeMg Simulation versus Experiment

  ORAL

  Nov. 19, 2025, 4:00 PM – Nov. 19, 2025, 4:12 PM

  Presenters

  • Nomita Vazirani

    Los Alamos National Laboratory (LANL)

  Authors

  • Nomita Vazirani

    Los Alamos National Laboratory (LANL)

  • Paul A Bradley

    Los Alamos National Laboratory (LANL)

  • Heather M Johns

    Los Alamos National Laboratory (LANL)

  • Robert F Heeter

    Lawrence Livermore National Laboratory

  • Yekaterina P Opachich

    Lawrence Livermore National Laboratory

  • Christopher J Fontes

    Los Alamos National Laboratory (LANL)

  • Joseph M Kasper

    Los Alamos National Laboratory

  • Ethan Smith

    University of Notre Dame, Los Alamos National Laboratory

  • Pawel Marek Kozlowski

    Los Alamos National Laboratory (LANL)

  • Patricia B Cho

    University of Texas at Austin

  • Matthias Hohenberger

    Lawrence Livermore National Laboratory

  • Todd J Urbatsch

    Los Alamos National Laboratory (LANL)

  • Theodore S Perry

    Los Alamos National Laboratory (LANL)

  View abstract →

• Oxygen Opacity Measurements at Solar Interior Conditions on the National Ignition Facility

  ORAL

  Nov. 19, 2025, 4:12 PM – Nov. 19, 2025, 4:24 PM

  Publication: Mayes, D. C., Hobbs, B. A., Heeter, R. F. et al., HEDP (2025)<br>Hobbs, B. A., Mayes, D. C., Heeter, R. F. et al. Rev. Sci. Instrum. (2024)

  Presenters

  • Bryce Hobbs

    University of Texas at Austin

  Authors

  • Bryce Hobbs

    University of Texas at Austin

  • Daniel C Mayes

    University of Texas at Austin

  • Robert F Heeter

    Lawrence Livermore National Laboratory

  • Paul A Bradley

    Los Alamos National Laboratory (LANL)

  • Christopher J Fontes

    Los Alamos National Laboratory (LANL)

  • Matthias Hohenberger

    Lawrence Livermore National Laboratory

  • Heather M Johns

    Los Alamos National Laboratory (LANL)

  • Yekaterina P Opachich

    Lawrence Livermore National Laboratory, Lawrence Livermore National Lab

  • Harry Francis Robey

    Los Alamos National Laboratory (LANL)

  • Stanislav Stoupin

    Lawrence Livermore National Laboratory

  • Matthew S Wallace

    Nevada National Security Sites

  • Michael Houston Montgomery

    University of Texas at Austin

  • Theodore S Perry

    Los Alamos National Laboratory (LANL)

  • Don E Winget

    University of Texas at Austin, The University of Texas at Austin

  View abstract →

• Results from the Opacity-on-the-National Ignition Facility Project: Comparison of Simulated and Experimental Opacities

  ORAL

  Nov. 19, 2025, 4:24 PM – Nov. 19, 2025, 4:36 PM

  Presenters

  • Paul A Bradley

    Los Alamos National Laboratory (LANL)

  Authors

  • Paul A Bradley

    Los Alamos National Laboratory (LANL)

  • Nomita Vazirani

    Los Alamos National Laboratory

  • Heather M Johns

    Los Alamos National Laboratory (LANL)

  • Robert F Heeter

    Lawrence Livermore National Laboratory

  • Yekaterina P Opachich

    Lawrence Livermore National Laboratory, Lawrence Livermore National Lab

  • Christopher J Fontes

    Los Alamos National Laboratory (LANL)

  • Joseph M Kasper

    Los Alamos National Laboratory

  • Pawel Kozlowski

    Los Alamos National Laboratory

  • Ethan L Smith

    Los Alamos National Laboratory

  • Matthias Hohenberger

    Lawrence Livermore National Laboratory

  • Theodore S Perry

    Los Alamos National Laboratory (LANL)

  • Daniel C Mayes

    University of Texas at Austin

  • Bryce Hobbs

    University of Texas at Austin

  • Patricia B Cho

    University of Texas at Austin

  • Todd J Urbatsch

    Los Alamos National Laboratory (LANL)

  View abstract →

• Applying Super-Resolution Machine Learning Techniques to Simulated Opacity Measurements for Near-Continuous-in-Energy Modeling of Radiative Phenomena

  ORAL

  Nov. 19, 2025, 4:36 PM – Nov. 19, 2025, 4:48 PM

  Presenters

  • Ethan Smith

    University of Notre Dame, Los Alamos National Laboratory

  Authors

  • Ethan Smith

    University of Notre Dame, Los Alamos National Laboratory

  • Nomita Vazirani

    Los Alamos National Laboratory (LANL)

  • Shane X Coffing

    Los Alamos National Laboratory (LANL), Postdoc at LANL

  • Paul A Bradley

    Los Alamos National Laboratory (LANL)

  • Christopher J Fontes

    Los Alamos National Laboratory (LANL)

  • Heather M Johns

    Los Alamos National Laboratory (LANL)

  • Todd J Urbatsch

    Los Alamos National Laboratory (LANL)

  View abstract →

• Photoionized plasma experiments at NIF driven by a 12ns long x-ray drive

  ORAL

  Nov. 19, 2025, 4:48 PM – Nov. 19, 2025, 5:00 PM

  Presenters

  • Annabelle E Peterson

    University of Nevada, Reno

  Authors

  • Annabelle E Peterson

    University of Nevada, Reno

  • Robert F Heeter

    Lawrence Livermore National Laboratory

  • Roberto Claudio Mancini

    U Nevada Reno, University of Nevada Reno, University of Nevada, Reno

  • Richard A London

    Lawrence Livermore National Laboratory

  • Patricia B Cho

    Lawrence Livermore National Lab

  • Yekaterina P Opachich

    Lawrence Livermore National Laboratory, Lawrence Livermore National Lab

  • Matthias Hohenberger

    Lawrence Livermore National Laboratory

  • Heather M Johns

    Los Alamos National Laboratory (LANL)

  • Theodore S Perry

    Los Alamos National Laboratory (LANL)

  • Pawel Kozlowski

    Los Alamos National Laboratory

  • Matthew S Wallace

    Nevada National Security Sites

  View abstract →