Abstract
Atmospheric pressure operation of a KrF laser pumped by 50-ns electron beams was experimentally investigated. For a 1-atm mixture of Kr and F2 without diluent, a specific output energy of 4.2 J/1 was obtained at 1.7-MW/cm3 excitation rate. Under this condition the intrinsic efficiency was about 5% (6% was maximum at 20% Kr in argon diluent) which was comparable to that from 1-atm normal (10% Kr) mixtures.
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