A self-consistent LTE model of a microwave-driven, high-pressure sulfur lamp

A 1D LTE model of a microwave-driven sulfur lamp is presented to aid our understanding of the discharge. The energy balance of the lamp is determined by Ohmic input, on the one hand, and transport due to conductive heat transfer and molecular radiation, on the other. We discuss the origin of operati...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2002-02, Vol.35 (4), p.342-351
Main Authors: Johnston, C W, Heijden, H W P van der, Janssen, G M, Dijk, J van, Mullen, J J A M van der
Format: Article
Language:English
Subjects:
Discharges for spectral sources (including inductively coupled plasma)
Discharges for spectral sources (including inductively coupled plasmas)
Electric discharges
Exact sciences and technology
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
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Summary:A 1D LTE model of a microwave-driven sulfur lamp is presented to aid our understanding of the discharge. The energy balance of the lamp is determined by Ohmic input, on the one hand, and transport due to conductive heat transfer and molecular radiation, on the other. We discuss the origin of operational trends in the spectrum, present the model and discuss how the material properties of the plasma are determined. Not only are temperature profiles and electric field strengths simulated but also the spectrum of the lamp from 300 to 900 nm under various conditions of input power and lamp filling pressure. We show that simulated spectra demonstrate observed trends and that radiated power increases linearly with input power, as is also found from experiment. (Author)
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/35/4/309