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Abstracts |
R.A. Lerche, G.W. Coutts, L.J. Lagin, R.A. Nyholm, N.R. Sewall, R.D. Stever, J.D. Wiedwald (LLNL), J. Larkin (Highland Technology, Inc.), S. Stein and R. Martin (Timing Solution Corporation)
The National Ignition Facility will contain the world's most powerful laser (1.8 MJ). The laser is composed of 192 pulsed optical beams that must be synchronized to better than 30 ps (rms) when they are focussed onto the millimeter-size targets used for inertial-confinement fusion research. The Integrated Timing System must generate and distribute more than 1600 precisely timed trigger pulses and 80 fiducial signals throughout more than 120,000 square feet of laser and target area. Triggers, which are used to control timing of both laser and diagnostic equipment, will be delivered at preprogrammed times from one second before to one second after the laser pulse is generated. Triggers are required to have a jitter of less than 20 ps (rms), a wander of less than 100 ps (max), and an adjustment resolution of less than 20 ps. In addition to its programmable timing capabilities, the trigger system also allows simultaneous, independent use by multiple clients. This is accomplished by partitioning the trigger system hardware into subsets that are controlled via independent software keys. The hardware necessary to implement the Integrated Timing System is commercially available.
{*} This work was performed under the auspices of the U.S. Department of Energy by University of California Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48.
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C011127
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SUMMARY
ICALEPCS 2001
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