The influence of an external cavity on the emission spectrum of a mercury germicidal lamp

The spectrum of emission from the cylindrical duralumin cavity of a TUV 8wG8 T5 UV industrial germicidal mercury lamp is studied. It is shown that, due to reflection from the inner surface of the cavity and reabsorption in the gas discharge, the resonance line of a mercury atom is significantly weak...

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Bibliographic Details
Published in:Optics and spectroscopy 2016-09, Vol.121 (3), p.455-459
Main Authors: Solomonov, V. I., Surkov, Yu. S., Gorbunkov, V. I.
Format: Article
Language:English
Subjects:
Discharge lamps
Duralumin
Emission
Gas discharges
Geometrical and Applied Optics
Lasers
Mercury lamps
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Reflectance
Resonance lines
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Summary:The spectrum of emission from the cylindrical duralumin cavity of a TUV 8wG8 T5 UV industrial germicidal mercury lamp is studied. It is shown that, due to reflection from the inner surface of the cavity and reabsorption in the gas discharge, the resonance line of a mercury atom is significantly weakened. The dependence of the resonance line intensity on the discharge current has a maximum, and the discharge current corresponding to the intensity maximum depends on the reflection coefficient of the inner surface of the cavity.
ISSN:0030-400X
1562-6911
DOI:10.1134/S0030400X16090204