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Author Bowles, J. H. ♦ Duncan, D. ♦ Walker, D. N. ♦ Amatucci, W. E. ♦ Antoniades, J. A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION ♦ PLASMA PRODUCTION ♦ HIGH-FREQUENCY DISCHARGES ♦ ELECTRON TEMPERATURE ♦ MICROWAVE RADIATION ♦ PLASMA DENSITY ♦ PLASMA SIMULATION ♦ VOLUME ♦ PLASMA SOURCES
Abstract We report on the design, construction, and use of a large cavity microwave plasma source. The source is designed to provide a range of space-plasma-like conditions in the Naval Research Laboratory Space Physics Simulation Chamber. A new feature of the source design incorporates hard anodized aluminum as the internal cavity area surface and does not use the conventional quartz cavity liner which is prone to overheating and cracking with extended use. By placing a number of small plasma outlet holes around the surface of a 36.8 cm output plate, we are able to provide a fairly radially uniform plasma; by further surrounding the production region and exit with an axial pinch magnetic field we are able to extend this region of plasma uniformity further toward the chamber walls and cover a significant portion of the experimental area. The source provides plasmas with selectable densities between 10{sup 4} and 10{sup 8} cm{sup {minus}3} and electron temperatures vary from about 0.5 to 2.0 eV. {copyright} {ital 1996 American Institute of Physics.}
ISSN 00346748
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-02-01
Publisher Place United States
Journal Review of Scientific Instruments
Volume Number 67
Issue Number 2


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