Title :
Flashboard plasma characterization using spectroscopy
Author :
Baranga, A.B.-A. ; Qi, Niansheng ; Hammer, David A.
Author_Institution :
Lab. of Plasma Studies, Cornell Univ., Ithaca, NY, USA
fDate :
10/1/1992 12:00:00 AM
Abstract :
The plasma produced by a 10 cm×6 cm planar flashboard has been investigated by emission spectroscopy. The plasma composition, density, and temperature have been determined with time and space resolution using measurement of the relative intensity of spontaneous emission in different atomic and ionic transitions together with calculations based on a collisional-radiative equilibrium model. The (1-2)×1013 cm-3 and (3-4) eV plasma flows away from the flashboard surface at a speed of about 10 cm/μs. A 1.7 cm/μs transverse velocity has been obtained from the Doppler width of an emission line
Keywords :
plasma density; plasma diagnostics; plasma temperature; 3 to 4 eV; Doppler width; atomic transitions; collisional-radiative equilibrium model; density; flashboard plasma characterisation; ionic transitions; plasma composition; space resolution; spectroscopy; spontaneous emission; temperature; Atomic measurements; Coaxial cables; Density measurement; Extraterrestrial measurements; Laboratories; Plasma applications; Plasma density; Plasma measurements; Plasma sources; Plasma temperature; Spectroscopy; Spontaneous emission; Switches; Time measurement;
Journal_Title :
Plasma Science, IEEE Transactions on
