Sulfur discharges as high efficacy light sources

Author

Ury, M.G. ; Turner, B.P. ; Dolan, J.T.

Author_Institution

Fusion Systems Corp., Rockville, MD, USA

fYear

1993

fDate

7-9 June 1993

Firstpage

219

Abstract

Summary form only given. It has been reported that a high-pressure, high-power-density sulfur discharge converted 50% of the applied microwave energy to visible light with a color rendering index of over 85. Recent advances in this technology are reviewed. Power densities in excess of 4000 watts/cc of bulb volume have been achieved, and coupled power levels up to 6000 watts of microwave power have been demonstrated. Efficacy has been investigated as a function of discharge size. A method for altering the angular distribution of the light intensity which involves reabsorption of "unwanted" light and the subsequent reradiation in a more favorable direction is examined. A model has been developed to explain the observations.

Keywords

sulphur; 6000 W; S discharges; applied microwave energy; bulb volume; color rendering index; discharge size; high efficacy light sources; high-pressure high-power-density S discharge; light intensity angular distribution; microwave power; model; power densities; review; visible light; Fault location; High intensity discharge lamps; Inorganic materials; Laboratories; Light sources; Microwave technology; Nuclear and plasma sciences; Paper technology; Plasma diagnostics; Plasma sources;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 1993. IEEE Conference Record - Abstracts., 1993 IEEE International Conference on

Conference_Location

Vancouver, BC, Canada

ISSN

0730-9244

Print_ISBN

0-7803-1360-7

Type

conf

DOI

10.1109/PLASMA.1993.593595

Filename

593595