LTE and near-LTE lighting plasmas

High-pressure mercury lamps, metal halide arc lamps, high-pressure sodium lamps, xenon short-arc lamps, xenon flashlamps, and microwave-excited metal halide lamps are extremely important commercial applications of LTE and near-LTE plasma physics. The author outlines in very brief form the basic plas...

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Bibliographic Details
Published in:IEEE transactions on plasma science 1991-12, Vol.19 (6), p.1003-1012
Main Author: Waymouth, J.F.
Format: Article
Language:English
Subjects:
426000 - Engineering- Components, Electron Devices & Circuits- (1990-)
665000 - Physics of Condensed Matter- (1992-)
ALKALI METALS
ATOM COLLISIONS
COLLISIONS
COMMERCIAL SECTOR
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
CURRENTS
Design automation
ELECTRIC ARCS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRODES
ELECTROMAGNETIC RADIATION
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELECTRON-ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ELEMENTS
ENERGY LOSSES
ENERGY-LEVEL TRANSITIONS
ENGINEERING
Exact sciences and technology
EXCITATION
FLUIDS
GASES
HALIDES
HALOGEN COMPOUNDS
ION COLLISIONS
Lamps
LIGHT BULBS
Light sources
LOSSES
MERCURY
METALS
MICROWAVE RADIATION
NONMETALS
Nuclear and plasma sciences
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
PLASMA
Plasma applications
Plasma devices
Plasma sources
PRESSURE DEPENDENCE
RADIATIONS
RARE GASES
RESEARCH PROGRAMS
SODIUM
VAPORS
XENON
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Description
Summary:High-pressure mercury lamps, metal halide arc lamps, high-pressure sodium lamps, xenon short-arc lamps, xenon flashlamps, and microwave-excited metal halide lamps are extremely important commercial applications of LTE and near-LTE plasma physics. The author outlines in very brief form the basic plasma science in such light sources. The factors controlling the power balance and the luminous efficacy of such sources are discussed. Current research in modeling these complex plasma devices is described. This has reached the stage that successful CAD models are available for new-product design in mercury and high-pressure sodium lamps, but not yet for metal halide lamps. The behavior of electrodes is discussed as an important practical determinant of lamp life. Directions of future research and development are briefly discussed.< >
ISSN:0093-3813
1939-9375
DOI:10.1109/27.125027