15 December 2015 Thermal equilibrium in gas-discharge plasma of low pressure mercury lamp
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Proceedings Volume 9810, International Conference on Atomic and Molecular Pulsed Lasers XII; 98101L (2015) https://doi.org/10.1117/12.2225188
Event: XII International Conference on Atomic and Molecular Pulsed Lasers, 2015, Tomsk, Russian Federation
Abstract
A study was conducted emission spectra germicidal low pressure mercury lamp at currents 100–306 mA located in a closed opaque cavity. It is shown that the lamps located in the cavity with perfectly reflecting and absorbing internal surfaces, in the emission resonance line of mercury is dominant at λr = 253.65 nm. The same pattern is observed in the tube placed in a cavity with diffusely reflecting surface at a low current of about 100 mA. However the picture of spectrum changes at higher discharge current. The spectrum of the lamp with arc discharge at a current of 306 mA contains the maxima of the spectral lines. Its intensities are approximately described by Planck's radiation law at the temperature of 9270 ± 230 K. The mechanisms of establish thermal equilibrium are discussed.
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V. I. Gorbunkov, V. I. Gorbunkov, V. I. Solomonov, V. I. Solomonov, } "Thermal equilibrium in gas-discharge plasma of low pressure mercury lamp", Proc. SPIE 9810, International Conference on Atomic and Molecular Pulsed Lasers XII, 98101L (15 December 2015); doi: 10.1117/12.2225188; https://doi.org/10.1117/12.2225188
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