Initial performance results of the OMEGA laser system
Abstract
OMEGA is a 60-terawatt, 60-beam, frequency-tripled Nd:glass laser system designed to perform precision direct-drive inertial-confinement-fusion (ICF) experiments. The upgrade to the system, completed in April 1995, met or surpassed all technical requirements. The acceptance tests demonstrated exceptional performance throughout the system: high driver stability (< 2% variations), precise control of the beam profiles and amplifier gains, 75% frequency-conversion efficiency, beam energy balance less than 8% and stable on-target irradiation of up to 37 kJ UV. We present these results and show that the system performance is well modeled by our propagation and frequency-conversion codes.
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