Experimental investigation of nonlinear interactions of drift waves
Hosken, Robert William
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https://hdl.handle.net/2142/25753
Description
Title
Experimental investigation of nonlinear interactions of drift waves
Author(s)
Hosken, Robert William
Issue Date
1968
Doctoral Committee Chair(s)
Raether, M.J.
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
nonlinear interactions
drift waves
collisionless plasmas
plasma-limiting aperture
Language
en
Abstract
Collisionless cesium and potassium plasmas are investigated
in a single-ended Q-machine. A wave associated with the
circular plasma-limiting aperture is observed when the plate
temperature is high enough. This wave and the ordinary drift wave
interact nonlinearly to produce new waves at the sum and difference
frequencies. The amplitude of the wave at the difference frequency
is an order of magnitude smaller than that of the primary waves
which have the same order of magnitude amplitude. The background
continuum is investigate and is seen to fall off as w-3/2.
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