Abstract
An electric-discharge light source, operating in the spectral range of 170–270 nm on a system of bands of Cl2 (λ = 200 and 257 nm) and KrCl (λ = 222 nm) molecules is described. The radiator is pumped by a low-pressure volume discharge in a spherical anode-flat cathode system of electrodes with an interelectrode distance of 6 cm, so that the plasma has no contact with the quartz envelope of the lamp. The working mixtures are P(Kr)/P(Cl2) = (40–640)/(40–280) Pa. When a dc voltage U ≤ 1 kV is applied to the discharge gap, a volume discharge exists only in a periodically pulsed mode (f = 0.1–50 kHz) and represents a source of short-wave radiation with a cylindrical working surface (1 cm in diameter and ≤6 cm long) and a mean radiation power of ≤3 W.
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