SPECTROSCOPIC INVESTIGATION OF A HIGH CURRENT DISCHARGE IN THE AIR AT LOW DENSITIES,
Abstract
The spectroscopic method was used to investigate an air plasma at 35,000K, activated at different initial temperatures, in a discharge tube specially constructed for the purpose. In addition to the temperature, determinations were made of the concentration of the charged particles, the presence of thermodynamic equilibrium was established, and the emissivity of the air was measured. The article gives a diagram of the tube. The integral spectra with time in the region of 3000 to 7000A were taken with a spectrophotometer with a diffraction grid with a reverse linear dispersion of 5A/mm, and a type ISP-28 quartz spectrograph. The concentration of ne electrons was determined from the width of the H-beta hydrogen line. The temperature of the plasma was determined from the ratio of the intensities of the OII lines. A table shows the experimental values of the concentration of the components of an air plasma as a function of the initial pressure. Further data are presented to establish that the plasma is in a state of thermodynamic equilibrium. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 14, 1967
- Accession Number
- AD0660397
Entities
People
- A. F. Simonenko
- L. S. Nikolaevskii
- S. G. Grenishin
Organizations
- National Air and Space Intelligence Center