ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
The temporal behavior of atomic and molecular ions and of several classes of neutral states lying above the Ar(1s) manifold has been mathematically modeled in a successful attempt to reproduce observed Ar(2p2)–Ar(1s4) emission signals at 296 K with Ar pressures in the 100–200 Torr region. In addition, traces of SF6 were added to remove the effects of the slow electron thermalization associative ionization cycle characteristic of pure Ar. The proposed model mechanism necessarily includes additional reaction steps required by the addition of SF6. Good agreement was obtained between observed and calculated emission profiles only after the introduction of Ar+2 as an important thermalizer of fast electrons in pure Ar. Previously published rate constant values for the various elementary steps assumed to comprise a simplest probable mechanism were found to be generally acceptable.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.461051
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