Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Radiometry of Low-Pressure Hg-Ar Discharges

Published

Author(s)

Craig J. Sansonetti, Joseph Reader

Abstract

New fluorescent lamp designs employ Hg-Ar discharges under operating conditions that differ significantly from those found in conventional fluorescent tubes. We have studied the radiant output of Hg-Ar discharges over a wide range of Ar pressure, Hg vapor pressure, and discharge current in test lamps of 5-mm and 23-mm diameter. Radiances for the 185 nm and 254 nm lines of Hg have been determined by direct comparison to a radiometric standard argon miniarc. Radiances for 12 additional lines in the ultraviolet and visible spectrum have been determined with lower accuracy by using the calibrated response of our spectrometer/detector system. These data should be valuable for validation of computer models of Hg-Ar discharges in the regimes important for new lamp designs. We describe the experiment and present representative data.
Proceedings Title
Science and Technology of Light Sources, International Symposium | 9th | | Institute for Low-Temperature Plasma Physics
Conference Dates
August 12-16, 2001
Conference Title
International Symposium on the Science and Technology of Light Sources

Keywords

fluorescent lamp, Hg-Ar discharge, lighting, mercury, radiometry

Citation

Sansonetti, C. and Reader, J. (2001), Radiometry of Low-Pressure Hg-Ar Discharges, Science and Technology of Light Sources, International Symposium | 9th | | Institute for Low-Temperature Plasma Physics (Accessed May 29, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created August 1, 2001, Updated February 17, 2017