Accession Number:

ADA051135

Title:

Infrared Emission Spectroscopy of Low Pressure Gaseous Discharges,

Descriptive Note:

Corporate Author:

MASSACHUSETTS UNIV AMHERST ASTRONOMY RESEARCH FACILITY

Personal Author(s):

Report Date:

1977-11-01

Pagination or Media Count:

39.0

Abstract:

A Michelson interferometer is used to measure infrared radiation in emission from a gaseous discharge column. The discharge column is contained in a 30-meter pathlength cell using a 12-meter central electrode. By optically triple passing, the equivalent pathlength achieved through the discharge column is 36 meters. Spectral resolution near Delta nu approx. 1cm is obtained. Sample spectra in the 1800 - 8000cm region are presented. The discharge column consists of a 1-meter diameter steel tube with a central electrode. It is powered by an AC supply. Power dissipation ranges from 1 to 4 kilowatts. Due to the discharge geometry, pressure is limited to the range of 0.1 to 0.6 torr however, broad adjustments in current density are possible over this pressure range. Author

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE