Accession Number:

AD0735303

Title:

Evidence for Departures from Equilibrium in an RF Induction Plasma in Atmospheric-Pressure Argon.

Descriptive Note:

Rept. for Sep 69-Dec 70,

Corporate Author:

AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s):

• Leonard,Stanley L.

Report Date:

1971-08-01

Pagination or Media Count:

25.0

Abstract:

Spectroscopic observations are reported of an atmospheric-pressure argon plasma generated inductively by a high-power rf oscillator. Values of the excitation temperature T sub ex, obtained from measurement of the relative intensities of spectral lines, were substantially greater than temperature values T sub eq, determined from absolute continuum and line intensities on the assumption of local thermodynamic equilibrium. If a collisional-radiative plasma model is used, the absolute intensity measurements yield temperatures T sub cr, which are in better agreement with the T sub ex values. Author

Descriptors:

• *PLASMAS(PHYSICS)
• TRANSPORT PROPERTIES
• PLASMA GENERATORS
• ARGON
• RADIOFREQUENCY
• ELECTRON DENSITY
• GAS FLOW
• THERMAL PROPERTIES
• LINE SPECTRA

Subject Categories:

• Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE