Infrared Emission Spectroscopy of Low Pressure Gaseous Discharges,

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. 1/cm is obtained. Sample spectra in the 1800 - 8000/cm 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)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1977
Accession Number
ADA051135

Entities

People

  • Hajime Sakai
  • John Strong
  • Peter Hansen

Organizations

  • University of Massachusetts Amherst

Tags

Communities of Interest

  • Counter IED

DTIC Thesaurus Topics

  • Air Force
  • Astronomy
  • Current Density
  • Diameters
  • Electrodes
  • Emission
  • Emission Spectroscopy
  • Fourier Spectroscopy
  • Geometry
  • Infrared Radiation
  • Michelson Interferometers
  • Radiation
  • Research Facilities
  • Spectra
  • Spectroscopy
  • United States

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Plasma Physics.