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Boltzmann expansion in a radiofrequency conical helicon thruster operating in xenon and argon

Charles, C.; Boswell, R.; Takahashi, K.


A low pressure (~ 0.5 mTorr in xenon and ~ 1 mTorr in argon) Boltzmann expansion is experimentally observed on axis within a magnetized (60 to 180 G) radiofrequency (13.56 MHz) conical helicon thruster for input powers up to 900 W using plasma parameters measured with a Langmuir probe. The axial forces, respectively, resulting from the electron and magnetic field pressures are directly measured using a thrust balance for constant maximum plasma pressure and show a higher fuel efficiency...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.4810001


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