Experimental investigation of the radiation properties of an air plasma in the spectral range 400-1200 nm
Abstract
The spectral distribution of the emissivity and absorption coefficient of an air plasma at five atmospheres pressure in the wavelength range 400-1200 nm and temperature range 9,000-14,000 K was determined with mean spectral resolution of 2.4 nm. Using measurement results and published data for a plasma at atmospheric pressure, the authors have determined the intensity of radiation of an air plasma layer 1 cm thick integrated over the studied wavelength range, and have distinguished the contribution from the continuum and from atomic spectral lines with allowance for self-absorption. As pressure was increased from 1 to 5 atm in the temperature range studied, the air spectrum suffered no significant changes. The absorption coefficient for the corresponding spectral zones increased by about one order of magnitude.
- Publication:
-
Zhurnal Prikladnoi Spektroskopii
- Pub Date:
- February 1976
- Bibcode:
- 1976ZhPS...24..219G
- Keywords:
-
- Absorption Spectra;
- Emission Spectra;
- High Temperature Plasmas;
- Plasma Radiation;
- Radiative Transfer;
- Absorptivity;
- Pressure Effects;
- Self Absorption;
- Spectral Resolution;
- Temperature Distribution;
- Temperature Effects;
- Plasma Physics