LTE conditions within the cental channel of the plasma

Thomas R. Smith, M Bonner Denton

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Studies were performed on the effect of torch pressure on the excitation conditions within an inductively coupled plasma (ICP). Experimentally measured magnesium ion-to-atom ratios and electron densities were used to determine the deviation of the plasma from local thermodynamic equilibrium (LTE) conditions. Results of these studies indicate that the plasma is in an infrathermal state when operated at atmospheric pressure, and excitation conditions within the central channel of an ICP shift towards LTE conditions as torch pressure is increased.

Original languageEnglish (US)
Pages (from-to)1385-1387
Number of pages3
JournalApplied Spectroscopy
Volume43
Issue number8
StatePublished - Nov 1989
Externally publishedYes

Fingerprint

Plasma torches
local thermodynamic equilibrium
Inductively coupled plasma
Thermodynamics
Plasmas
torches
Magnesium
Atmospheric pressure
Carrier concentration
Ions
Atoms
excitation
magnesium
atmospheric pressure
deviation
shift
atoms
ions

ASJC Scopus subject areas

  • Spectroscopy
  • Instrumentation

Cite this

LTE conditions within the cental channel of the plasma. / Smith, Thomas R.; Denton, M Bonner.

In: Applied Spectroscopy, Vol. 43, No. 8, 11.1989, p. 1385-1387.

Research output: Contribution to journalArticle

Smith, Thomas R. ; Denton, M Bonner. / LTE conditions within the cental channel of the plasma. In: Applied Spectroscopy. 1989 ; Vol. 43, No. 8. pp. 1385-1387.
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