Software Engineering Processes Used to Develop the NIF Integrated Computer Control System Metadata

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Title

  • Main Title Software Engineering Processes Used to Develop the NIF Integrated Computer Control System

Creator

  • Author: Ludwigsen, A P
    Creator Type: Personal
  • Author: Carey, R W
    Creator Type: Personal
  • Author: Demaret, R D
    Creator Type: Personal
  • Author: Lagin, L J
    Creator Type: Personal
  • Author: Reddi, U P
    Creator Type: Personal
  • Author: Van Arsdall, P J
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: Lawrence Livermore National Laboratory
    Place of Publication: Livermore, California
    Additional Info: Lawrence Livermore National Laboratory (LLNL), Livermore, CA

Date

  • Creation: 2007-10-03

Language

  • English

Description

  • Content Description: We have developed a new target platform to study Laser Plasma Interaction in ignition-relevant condition at the Omega laser facility (LLE/Rochester)[1]. By shooting an interaction beam along the axis of a gas-filled hohlraum heated by up to 17 kJ of heater beam energy, we were able to create a millimeter-scale underdense uniform plasma at electron temperatures above 3 keV. Extensive Thomson scattering measurements allowed us to benchmark our hydrodynamic simulations performed with HYDRA [1]. As a result of this effort, we can use with much confidence these simulations as input parameters for our LPI simulation code pF3d [2]. In this paper, we show that by using accurate hydrodynamic profiles and full three-dimensional simulations including a realistic modeling of the laser intensity pattern generated by various smoothing options, fluid LPI theory reproduces the SBS thresholds and absolute reflectivity values and the absence of measurable SRS. This good agreement was made possible by the recent increase in computing power routinely available for such simulations.
  • Physical Description: 7 p. (0.1 MB)

Subject

  • Keyword: Thomson Scattering
  • STI Subject Categories: 99 General And Miscellaneous//Mathematics, Computing, And Information Science
  • Keyword: Computers
  • Keyword: Lasers
  • Keyword: Targets
  • Keyword: Heaters
  • Keyword: Plasma
  • STI Subject Categories: 42 Engineering
  • STI Subject Categories: 42 Engineering
  • Keyword: Hydra
  • Keyword: Physics
  • Keyword: Electron Temperature
  • Keyword: Hydrodynamics
  • Keyword: Benchmarks
  • Keyword: Accelerators
  • Keyword: Simulation
  • Keyword: Reflectivity
  • Keyword: Control Systems

Source

  • Conference: Presented at: International Conference on Accelerator and Large Experimental Physics Control Systems, Knoxville, TN, United States, Oct 14 - Oct 20, 2007

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: UCRL-CONF-235293
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 922311
  • Archival Resource Key: ark:/67531/metadc896935

Note

  • Display Note: PDF-file: 7 pages; size: 0.1 Mbytes