ABSTRACT
V. Tcheremiskinel, M. Sends', 0. Utezal, L. Mikheev2 I Laboratoire Lasers, Plasmas et Procedes Photoniques (LP3), UMR 6182 CNRS — Universite Aix-Marseille 11,
Campus de Luminy, Case 917, 13288, Marseille, Cedes 9, France 2 Photochemical Processes Laboratory, P.N.Lehedev Physical Institute, Lenin,* prospek 53. Moscow, 117924,
Russia Contact: tcheremiskineQ1o3.1iniv-mrs.Ir
ABSTRACT A high-intensity source of VUV radiation is designed on the base of multichannel sliding discharge
initiated by a barrier discharge. Two synchronous multichannel discharges initiated along two dielectric surfaces of 18x40 cm2 produce pumping light pulses of 0.9 u.is FWHM duration, which pump a photolytically driven laser medium. The initiation and spatial stabilisation of 2x50 plasma channels are established with the help of dielectric barrier discharge. The homogeneity of the discharge plasma radiation is obtained due to the technique of a low-energy pre-pulse discharge. Absolute measurements of the VUV radiation power are performed by means of a spectrally selective dynamic actinometry. The measured value of the source surface VUV-radiation intensity correspond to a brightness temperature of 20.5 ±0.5 kK at the pulse maximum.
