NDLI: Penning ionization of cesium by photoexcited mercury. Radiation transport effects

Content Provider	IEEE Xplore Digital Library
Author	Stalder, K.R. Vidmar, R.J.
Copyright Year	1997
Description	Author affiliation: SRI Int., Menlo Park, CA, USA (Stalder, K.R.)
Abstract	Summary form only given. Following our model of a photoexcited Hg-Cs-N/sub 2/-He system previously presented, we are now focusing attention on the radiative effects that control the spatial distribution of plasma and the overall system efficiency. Radiation trapping in mercury vapor at 253.7 nm is significant and frequently presents a great obstacle to excite the bulk of the vapor. It is strongly affected by spectral broadening of both the excitation light source as well as the medium being pumped. In the present case, much of the problem can be overcome by using both isotopically-enriched mercury source lamps and plasma medium. Pressure broadening in the plasma cell causes the effective radiative decay rate to be decreased from the rate for an isolated atom and it also increases the transmission probability for resonant photons to propagate into the medium. Both of these effects are desirable in the present situation.
File Size	106933
File Format	PDF
ISBN	0780339908
ISSN	07309244
DOI	10.1109/PLASMA.1997.605231
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-05-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ionization Plasma sources Lamps Cells (biology) Plasma transport processes Light sources Atomic measurements Resonance Mercury (metals) Contracts
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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