Relaxation of atmospheric pressure helium plasmas
Abstract
A spectroscopic study of the relaxation of electron-beam-excited discharge plasmas in helium at pressures between 1 and 5 atm is reported. Initial charge densities produced exceeded 10 to the 14th per cu cm and the studies were conducted at 300 K. A kinetic model describing the afterglow evolution was formulated and found to agree well with the experimental results. The role of electronic recombination of He-3(+) is discussed.
- Publication:
-
Journal of Physics B Atomic Molecular Physics
- Pub Date:
- March 1979
- DOI:
- 10.1088/0022-3700/12/6/020
- Bibcode:
- 1979JPhB...12.1043C
- Keywords:
-
- Atmospheric Pressure;
- Electron Impact;
- Electron-Ion Recombination;
- Gas Discharges;
- Gas Spectroscopy;
- Helium Plasma;
- Electron Beams;
- Kinetic Equations;
- Mathematical Models;
- Relaxation Time;
- Plasma Physics