A KrF amplifier model verified against Nike laser dat ais used to design higher energy modules with segmented pumping. A 68 kJ module is designed, incorporating a new water line geometry and a combined switch/bushing. Two 68 kJ modules are combined in a 136 kJ multiplexed beamline incorporating incoherent spatial imaging that fits within a compact beam tunnel. A total of 16 such beamlines are arranged on four floors to deliver 64 beams to a target, the net energy being 1.0 MJ. The wallplug efficiency of this laser is 4
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