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Microwave cavity measurements on a magnetoactive plasma.

Flower, Dennis Alan. (1971) Microwave cavity measurements on a magnetoactive plasma. Doctoral thesis, University of Surrey (United Kingdom)..

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Abstract

The interaction of microwaves with a magnetoactive plasma is investigated with a plasma loaded resonant cavity. The cylindrical cavity resonant in the TE[111] mode has a coaxial plasma rod which is longitudinally magnetised. When empty the cavity supports two circularly polarised modes with the same resonant frequency and the introduction of the magnetoactive plasma removes the degeneracy. The system is analysed firstly by the perturbation theory which has a number of limitations. Some of these are removed by a second method of analysis in which the propagation characteristics of a waveguide with three coaxial media are determined. This analysis is restricted to a lossless plasma but allows the perturbation theory to be modified and thus applied to the lossy system. The experimental observations on the changes in resonant frequency and Q-value of the cavity caused by the plasma are interpreted with the theory to give values of the plasma characteristics, electron density and collision frequency.

Item Type: Thesis (Doctoral)
Divisions : Theses
Authors :
NameEmailORCID
Flower, Dennis Alan.
Date : 1971
Contributors :
ContributionNameEmailORCID
http://www.loc.gov/loc.terms/relators/THS
Additional Information : Thesis (Ph.D.)--University of Surrey (United Kingdom), 1971.
Depositing User : EPrints Services
Date Deposited : 22 Jun 2018 13:01
Last Modified : 06 Nov 2018 16:52
URI: http://epubs.surrey.ac.uk/id/eprint/847436

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