Study of a volume discharge in inert-gas halides without preionisation

The energy characteristics of radiation of halides of inert gases excited by a volume discharge without additional preionisation are studied. The pressures of working mixtures and relations between the inert gas and halogen optimal for obtaining the maximum pulsed power and radiation efficiency are determined. The peak UV radiation power density achieved 5 kW cm^-2 and the radiation efficiency was ~5.5%. The pulse FWHM was 30 — 40 ns.