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Ion beam formation in a very low magnetic field expanding helicon discharge

Lafleur, T.; Charles, C.; Boswell, R. W.


An ion beam has been measured emerging from a low pressure (0.04 Pa) helicon plasma reactor over a narrow range of magnetic field values (1 mT<B0<3 mT). The presence of the ion beam occurs simultaneously with a large increase in the plasma density for the same applied magnetic field, produced using a single solenoid half the length of the m=1 rfantenna. The peak central plasma density of 1.5×10¹⁷ m⁻³ is measured to be almost 15 times larger than that occurring before or after the increase, and...[Show more]

CollectionsANU Research Publications
Date published: 2010-04-13
Type: Journal article
Source: Physics of Plasmas
DOI: 10.1063/1.3381093


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