D. H. Froula University of Rochester Laboratory for Laser Energetics 56th Annual Meeting of the American Physical Society Division of Plasma Physics New Orleans, LA 27–31 October 2014 A Pathway to Ignition-Hydrodynamic-Equivalent Implosions in OMEGA Direct Drive Through the Reduction of Cross-Beam Energy Transfer 140 10 15 20 25 30 35 180 Ablation pressure (Mbar) 220 Current hydro-equivalent design No CBET Increasing mass In-flight aspect ratio (IFAR) = R DR OMEGA ignition hydro-equivalent conditions . / / cm s Gbar mg cm ? ? ? V M R P P P V R P 37 10 100 300 > / / imp a hs a a 7 13 3 23 2 # # a t a D = = ^ h