Glow-and-barrier-discharge efficient excilamps

摘要

Abstract: Excilamps with different tube geometry pumped by continuous glow and barrier discharges are described. It was shown that the efficiency of barrier discharge excilamps pumped by sinusoidal pulses with duration of several tens microseconds can be sufficiently improved. The range of UV wavelength emitted by glow discharge excilamps was extended. Intense radiation of KrBr*, XeBr*, I$-2$/* and IBr* molecules was obtained in rare gas - CH$-3$/Br (I$-2$/) mixtures pumped by glow discharge KrCl* excilamp ($lambda approximately 222 nm) with output power up to 200 W was developed. UV power of 500 W from three KrCl* excilamps operating in parallel was demonstrated. Efficiency of exciplex molecule luminescence in the positive column of glow discharge was found to be as high as approximately 30%.!7