Title :
Spectroscopic diagnostics of preanode plasma in glow discharge of helium
Author :
Al-Hawat, Sharif
Author_Institution :
Dept. of Phys., Atomic Energy Comm., Damascus, Syria
fDate :
10/1/1997 12:00:00 AM
Abstract :
A spectroscopic method has been used for the diagnostics of the preanode plasma in a glow discharge in helium. The method is based on the measurement of the absolute intensity of two wavelengths, one of which, λ1=525 nm, is from the continuous spectrum, and the other, λ2=587.6 nm, is from the discrete spectrum. The electron temperature and density have been determined in the anode region of helium for fixed discharge conditions (pressure=25 mbar, current=50 mA)
Keywords :
anodes; glow discharges; helium; plasma density; plasma diagnostics; plasma temperature; spectral line intensity; 25 mbar; 50 mA; 525 nm; 587.6 nm; He; absolute intensity; anode region; continuous spectrum; diagnostics; discrete spectrum; electron density; electron temperature; fixed discharge conditions; glow discharge; preanode plasma; spectroscopic diagnostics; spectroscopic method; Anodes; Electrons; Glow discharges; Helium; Plasma diagnostics; Plasma measurements; Plasma temperature; Plasma waves; Spectroscopy; Wavelength measurement;
Journal_Title :
Plasma Science, IEEE Transactions on
