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University of Illinois - Urbana-Champaign
Incoherent scattering of microwaves from enhanced density fluctuations in a DC-discharge
Abstract
dc:description"Radiation of 9375 MHz is incident on a cylindrical neon discharge enclosed in a 1"" square waveguide and incoherent scattering in the upper sideband is investigated. Scattering is observed in the backward and forward directions from the naturally enhanced density fluctuations in two electron plasma modes for gas pressures between -3 -3"" 3.8xlO Torr and 8.0XlO Torr. The measured electron mode frequencies are in general agreement with other experiments. The enhancement, varying between 30 and 8000 times the estimated thermal value is correlated over most of the pressure range to excess superthermal electrons present in the discharge, as measured by a Langmuir probe."
Degree
thesis:*- Name thesis:degree_name
- Ph.D.
- Level thesis:degree_level
- Dissertation
- Discipline thesis:degree_discipline
- Physics
- Year dc:date
- 2011
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Carr, Wayne Elbert
- Contributors dc:contributor
-
- Raether, M.J.
Subjects
dc:subject × 4Rights
dc:rights- Statement dc:rights
-
- 1967 Wayne Elbert Carr
- Language dc:language
- en
Identifiers
dc:identifier.*- Identifier
- 6088144
- OAI identifier oai:identifier
- oai:www.ideals.illinois.edu:2142/25701