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Influence of the iodine vapor pressure on the output characteristics of a UV low-pressure gas-discharge lamp

A. K. Shuaibov^a, Z. T. Gomoki^a, A. G. Kalyuzhnaya^b, A. I. Shchedrin<sup>b

a</sup> Uzhgorod National University
^b Institute of Physics, National Academy of Sciences of Ukraine, Kiev

Abstract: The influence of the iodine vapor pressure on the output characteristics of a UV lamp pumped by a longitudinal glow discharge is studied. The lamp is filled with a helium-iodine mixture to a pressure of 100–1500 Pa. In the spectral range 320–360 nm, the I$_2$ $(D'\to A')$ band with a peak at 342 nm prevails, while in the bactericidal range, iodine atomic lines at 183.0 and 206.2 nm dominate. The power of the UV lamp is optimized according to the iodine vapor pressure and working mixture composition by numerical simulation.

Received: 09.11.2010

 English version: Technical Physics, 2011, 56:8, 1213–1215

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