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