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

ORAL

Abstract

A new time-resolved spectrometer (OpSpecTR) is currently under development for the National Ignition Facility (NIF) opacity campaign. The spectrometer utilizes Icarus version 2 (IV2) hybrid complementary metal-oxide semiconductor (hCMOS) sensors to collect time -gated data at the time of the opacity transmission signal, enabling higher-temperature measurements on NIF. While these conditions are experimentally achievable, backgrounds currently dominate data collected by the existing time-integrated opacity spectrometer (OpSpec). The shortest available OpSpecTR integration time of ~2 ns is predicted to reduce self-emission and other late-time backgrounds by up to 80%. Three Icarus sensors are used to collect data in the self-emission, backlighter, and absorption regions of the transmission spectrum, with future upgrades planned to incorporate five Daedalus sensors, offering integration times as short as ~1.3 ns. We present an update on the recent deployment and qualification of OpSpecTR. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. LLNL-ABS-2008473

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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