Accession Number : ADA138868

Title :   Power Transfer for Microwave Discharges.

Descriptive Note : Final rept. 20 Sep 82-31 Dec 83,

Corporate Author : SRI INTERNATIONAL MENLO PARK CA

Personal Author(s) : August,G ; Damron,S

PDF Url : ADA138868

Report Date : 23 Dec 1983

Pagination or Media Count : 42

Abstract : Characteristics of gas breakdown caused by high-power microwaves were studied experimentally. This study concentrated on characterizing the breakdown plasma and on power transfer through the plasma. The integrated electron density was measured via 94 GHz interferometric technique. The decay time of visible light emission from the breakdown plasma was measured to correlate with photographic measurements of size and shape. The effect of echoes within the test chamber on pressure measurements from the discharge was investigated. The topic of enhanced power transfer to a reflecting metal surface, due to formation of a microwave discharge above the surface, was considered. The power transferred in the forward direction through the microwave discharge was measured usng a small slit in a reflecting metal plate. (Author)

Descriptors :   *Breakdown(Electronic threshold), *Pressure measurement, *Reflection, *Plasmas(Physics), *Gas breakdown, Test facilities, High power, Integrated systems, Photography, M band, Interferometers, Sizes(Dimensions), Microwaves, Chambers, Electron density, Power, Light, Decay, Metals, Emission, Transfer, Surfaces, Time, Visibility, Measurement, Reflection, Forward areas

Subject Categories : Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE