Author: Yang, S.T.
Paper Title Page
THCOCB02 The Role of Data Driven Models in Optimizing the Operation of the National Ignition Facility 1426
 
  • K.P. McCandless, J.-M.G. Di Nicola, S.N. Dixit, E. Feigenbaum, R.K. House, K.S. Jancaitis, K.N. LaFortune, B.J. MacGowan, C.D. Orth, R.A. Sacks, M.J. Shaw, C.C. Widmayer, S.T. Yang
    LLNL, Livermore, California, USA
 
  Funding: * This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. #LLNL-ABS-633233
The Virtual Beam Line (VBL) code is essential to operate, maintain and validate the design of laser components to meet the performance goals at Lawrence Livermore National Laboratory’s National Ignition Facility (NIF). The NIF relies upon the Laser Performance Operations Model (LPOM), whose physics engine is the Virtual Beam Line (VBL) code, to automate the setup of the laser by simulating the laser energetics of the as-built system. VBL simulates paraxial beam propagation, amplification, aberration and modulation, nonlinear self-focusing and focal behavior. Each of the NIF’s 192 beam lines are modeled in parallel on the LPOM Linux compute cluster during shot setup and validation. NIF achieved a record 1.8 MJ shot in July 2012, and LPOM (with VBL) was key to achieving the requested pulse shape. We will discuss some examples of how the VBL physics code is used to model the laser phenomena and operate the NIF laser system.
 
slides icon Slides THCOCB02 [4.589 MB]