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Measurements of helicon wave propagation and Ar II emission

Scharer, J.; Degeling, A.; Borg, G.; Boswell, R.


Wavemagnetic field, optical and Langmuir probemeasurements are carried out to examine fast and thermal electron contributions to plasma ionization in a helicon plasmasource. For the optical measurements, an Ar II line (443 nm) with a particularly short lifetime (7 ns) is chosen to resolve the excitation rate within a radio frequency period (73.7 ns). Information is then obtained regarding the acceleration processes and their action on the electron distribution that caused the excitation....[Show more]

CollectionsANU Research Publications
Date published: 2002-08-22
Type: Journal article
Source: Physics of Plasmas
DOI: 10.1063/1.1501475


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