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Transport of ion beam in an annular magnetically expanding helicon double layer thruster

Zhang, Yunchao; Charles, Christine; Boswell, Rod


An ion beam generated by an annular double layer has been measured in a helicon thruster, which sustains a magnetised low-pressure (5.0 104 Torr) argon plasma at a constant radio-frequency (13.56 MHz) power of 300 W. After the ion beam exits the annular structure, it merges into a solid centrally peaked structure in the diffusion chamber. As the annular ion beam moves towards the inner region in the diffusion chamber, a reversed-cone plasma wake (with a half opening angle of about 30 ) is...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Physics of Plasmas
DOI: 10.1063/1.4885350


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