ICALEPCS2013 - List of Authors (Shaw, M.J.)

Paper

Title

Page

Rapid Software Prototyping into Large Scale Controls Systems

166

B.T. Fishler, M.W. Bowers, G.K. Brunton, S. Cohen, A.D. Conder, J.-M.G. Di Nicola, J. Heebner, J.T. Matone, M. Paul, M. A. Rever, M.J. Shaw, E.M. Tse
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-632892
The programmable spatial shaper (PSS) within the National Ignition Facility (NIF) reduces energy on isolated optic flaws in order to lower the optics maintenance costs. This will be accomplished by using a closed-loop system for determining the optimal liquid-crystal-based spatial light pattern for beamshaping and placement of variable transmission blockers. A stand-alone prototype was developed and successfully run in a lab environment as well as on a single quad of NIF lasers following a temporary hardware reconfiguration required to support the test. Several challenges exist in directly integrating the C-based PSS engine written by an independent team into the Integrated Computer Control System (ICCS) for proof on concept on all 48 NIF laser quads. ICCS is a large-scale data-driven distributed control system written primarily in Java using CORBA to interact with +60K control points. The project plan and software design needed to specifically address the engine interface specification, configuration management, reversion plan for the existing 0% transmission blocker capability, and a multi-phase integration and demonstration schedule.

Poster MOPPC038 [2.410 MB]

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 THCOCB02 [4.589 MB]

Paper	Title	Page
MOPPC038	Rapid Software Prototyping into Large Scale Controls Systems	166
	B.T. Fishler, M.W. Bowers, G.K. Brunton, S. Cohen, A.D. Conder, J.-M.G. Di Nicola, J. Heebner, J.T. Matone, M. Paul, M. A. Rever, M.J. Shaw, E.M. Tse 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-632892 The programmable spatial shaper (PSS) within the National Ignition Facility (NIF) reduces energy on isolated optic flaws in order to lower the optics maintenance costs. This will be accomplished by using a closed-loop system for determining the optimal liquid-crystal-based spatial light pattern for beamshaping and placement of variable transmission blockers. A stand-alone prototype was developed and successfully run in a lab environment as well as on a single quad of NIF lasers following a temporary hardware reconfiguration required to support the test. Several challenges exist in directly integrating the C-based PSS engine written by an independent team into the Integrated Computer Control System (ICCS) for proof on concept on all 48 NIF laser quads. ICCS is a large-scale data-driven distributed control system written primarily in Java using CORBA to interact with +60K control points. The project plan and software design needed to specifically address the engine interface specification, configuration management, reversion plan for the existing 0% transmission blocker capability, and a multi-phase integration and demonstration schedule.
	Poster MOPPC038 [2.410 MB]

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 THCOCB02 [4.589 MB]