A continuously emitting electric discharge UV lamp |
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Authors: | A. K. Shuaibov I. A. Grabovaya |
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Affiliation: | (1) Uzhgorod National University, ul. Pidgirna 46, 88000 Uzhgorod, Ukraine |
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Abstract: | A UV lamp pumped by a dc-current glow discharge in a mixture of helium with iodine vapors inside a quartz discharge tube with an interelectrode distance of 50 cm is described. For the power deposited in discharge (Wel 200 W), the total power emitted by the lamp in the spectral range 200–350 nm is as high as 27 W with an efficiency of 18 %. The lamp service life in the gas-static mode is 400–500 h. The emission is distributed almost equally between the spectral line of iodine atoms = 206.2 nm) 0.12 nm wide and the electron vibrational bands of I2(B-X) molecules max = 342 nm). The optimal helium partial pressure is 600–800 Pa.Translated from Pribory i Tekhnika Eksperimenta, No. 1, 2005, pp. 119–121.Original Russian Text Copyright © 2004 by Shuaibov, Grabovaya. |
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