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High density conics in a magnetically expanding helicon plasma

Charles, Christine


A two-dimensional mapping of ion density and plasma potential in a diverging magnetized low pressure (0.4 mTorr) carbon dioxide helicon plasma containing a double layer reveals the presence of high density conics (7 109 cm−3) along the most diverging magnetic field lines exiting the helicon source and connecting with the grounded expansion chamber. The density in the conic is about 30% greater than the density at the double layer and this results from local ionization associated with the...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.3309668


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