Abstract

The spectral characteristics of a pulsed-periodic lamp with three dielectric barriers are presented for the range 220–250 nm. As the active media of the lamp, krypton (Kr)-sulfur hexafluoride (SF6) and krypton-carbon tetrachloride (CCl4) mixtures are tested. The use of Kr-SF6 and Kr-CCl4 binary mixtures in two noncommunicating volumes is shown to be more effective than the use of a Kr-SF6-CCl4 ternary mixture with the same amount of Kr, SF6, and CCl4 constituents. The emission spectrum of the lamp near the maxima of the KrF(X-B) 248-nm and KrCl(X-B) 222-nm bands can be controlled by varying the partial pressures of halogen carriers and krypton.

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