Direct-drive laser-fusion experiments with the OMEGA, 60-beam, >40 kJ, ultraviolet laser system

Abstract

The 60-beam OMEGA laser facility is now operational. In its initial activation experiments, OMEGA has already exceeded previously obtained laser-fusion neutron yields and has demonstrated energy performance in excess of its specifications. In the coming years, the facility will be used for a full range of fusion experiments ranging from high-precision direct-drive implosions to cylindrical hohlraum-driven capsule experiments. With 60 beams, an energy capability of ≳ 40 kJ, and 1-2% irradiation uniformity, OMEGA will be capable of validating high-performance, hydrodynamically equivalent target implosions. An extensive suite of experimental diagnostics and a cryogenic fuel-target system will make OMEGA a unique inertial-confinement-fusion experimental facility.