Abstract
This paper presents the results of an investigation of the optical characteristics of a compact electric-discharge UV-VUV radiator based on mixtures of inert gases with iodine vapor in which the pressure of the working mixture is 250-2000 Pa. The output characteristics of the lamp were optimized as a function of the partial pressure of the inert gases and the glow-discharge current. It is established that the lamp's total radiation power in the 206-350-nm spectral region reaches 6-7 W at an efficiency of 15-20%. The operating life of the lamp in the gasostat regime was 500 h. About half the power of the UV glow-discharge radiation in this case is represented in the form of a spectral line of the iodine atom (lambda=206.2nm), while the other half is in the form of vibronic bands of iodine molecules and xenon iodide. The lamp can be recommended for use in photochemistry, medicine, and biophysics. © 2005 Optical Society of America
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