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High-average power XeCl laser with x-ray preionization and spiker-sustainer excitation

The progress of the development of an 1 kW, 1 kHz XeCl laser is reported. The laser consists of a low loss gas circulation system, a corona-plasma cathode x-ray pre-ionizer, and a pre- pulse main-pulse excitation circuit generating long optical pulses. The performances of the pre-ionizer and the electrical circuit are described.