Author: Rozenshteyn, R.
Paper Title Page
MOPV021 Upgrading the National Ignition Facility’s (NIF) Integrated Computer Control System to Support Optical Thompson Scattering (OTS) Diagnostic 173
  • A.I. Barnes, A.A.S. Awwal, L. Beaulac, B. Blackwell, G.K. Brunton, K. Burns, J.R. Castro Morales, M. Fedorov, R. Lacuata, R.R. Leach, D.G. Mathisen, V.J. Miller Kamm, S. Muralidhar, V. Pacheu, Y. Pan, S. Patankar, B.P. Patel, M. Paul, R. Rozenshteyn, R.J. Sanchez, S. Sauter, M. Taranowski, D. Tucker, K.C. Wilhelmsen, B.A. Wilson, H. Zhang
    LLNL, Livermore, California, USA
  Funding: This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
With the ability to deliver 2.1 MJ of 500 TW ultraviolet laser light to a target, the National Ignition Facility (NIF) is the world’s most energetic laser. This combination of energy and power allows the study of materials under conditions similar to the center of the sun. On fusion ignition experiments, plasma generated in the interior of the target shell can detrimentally impact the implosion symmetry and the resulting energy output. We are in the final stages of commissioning a significant new diagnostic system that will allow us to better understand the plasma conditions and improve our symmetry control techniques. This Optical Thompson Scattering (OTS) system consists of two major components: a probe laser beamline capable of delivering a world first 1 J of energy at 211 nm, and a diagnostic that both reflects the probe laser into the target and collects the scattered photons. Between these two components, the control system enhancements required integration of over 450 components into the existing automation suite. This talk will provide an overview of the system upgrade approach and the tools used to efficiently manage and test changes to both our data and software.
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About • Received ※ 09 October 2021       Accepted ※ 10 February 2022       Issue date ※ 21 February 2022  
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