Kinetics and radiative processes of a xenon and iodine inductive RF discharge at low pressure

An investigation is conducted to determine the kinetics and radiative processes involved in a low pressure, $0.5-5$ torr, discharge sustained in Xe and I$\sb2.$ The discharge is excited with an RF inductive power source. The diagnostics applied in this study include laser-induced fluorescence (LIF), absorption spectroscopy, emission spectroscopy, microwave interferometry, and microwave absorption. Results from this research indicate that Xe + I$\sb2\sp{*}\sp{*}{\to}$ XeI* + I is the major precursor reaction leading to XeI* radiation. This conclusion differs from those resulting from research performed at higher pressures. Those studies concluded that the harpoon reaction or ionic recombination is the precursor process. In a time modulated inductively coupled discharge, the emission of I* decays on the order of hundreds of microseconds due to ion-ion neutralization consistent with the Landau-Zener theory of ion-ion neutralization. Decay of the electron density is also hundreds of microseconds for the same discharge. Electron-ion recombination leading to excited states is not an important source of emission in the discharge at high or low powers.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Barnes, Paul Nathan

• Chemistry, Physical
• Physics, Molecular
• Physics, Atomic

Statement dc:rights

• Copyright 1996 Barnes, Paul Nathan

Language dc:language

eng

Identifier

9780591087819
AAI9702455
(UMI)AAI9702455

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/20704