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Magnetic Ion Beam Deflection in the Helicon Double-Layer Thruster

Cox, Wesley; Charles, Christine; Boswell, Roderick; Laine, Robert; Perren, M

Description

Transverse magnetic fields (along the x-axis, transverse to the z-axis) are applied to a helicon double-layer plasma to investigate the effect on the ion beam accelerated in the electric field of the double-layer. The 250 W radio frequency argon plasma is operated at a pressure of 0.04 Pa in a diverging magnetic field with a maximum of ∼140 G along the primary axis (z-axis). The diverging magnetic field is produced by two primary solenoids aligned coaxially along the z-axis. Introducing an...[Show more]

dc.contributor.authorCox, Wesley
dc.contributor.authorCharles, Christine
dc.contributor.authorBoswell, Roderick
dc.contributor.authorLaine, Robert
dc.contributor.authorPerren, M
dc.date.accessioned2015-12-07T22:53:12Z
dc.identifier.issn0748-4658
dc.identifier.urihttp://hdl.handle.net/1885/27756
dc.description.abstractTransverse magnetic fields (along the x-axis, transverse to the z-axis) are applied to a helicon double-layer plasma to investigate the effect on the ion beam accelerated in the electric field of the double-layer. The 250 W radio frequency argon plasma is operated at a pressure of 0.04 Pa in a diverging magnetic field with a maximum of ∼140 G along the primary axis (z-axis). The diverging magnetic field is produced by two primary solenoids aligned coaxially along the z-axis. Introducing an additional solenoid mounted along the x-axis, perpendicular to the z-axis, generates a 0 to 250 G magnetic field at its center (0 to 55 G at the z-axis) as the supplied current is swept from 0 to 6 A. Spatial measurements of the ion beam downstream of the double-layer using a retarding field energy analyzer reveal deflection of the ion beam vector, with the angle of deflection increasing with increasing transverse solenoidal current. Deflection of the ion beam is observed for both transverse solenoidal polarities, with the polarity determining the direction of ion beam deflection. Under the influence of the transverse magnetic field, the ion beam vector is demonstrated to be deflected in the x-z plane as a function of the transverse solenoidal polarity. The ion beam is measured to be deflected by up to -26 and 14 deg for the transverse polarity pointing out of and into the thruster, respectively, where positive deflection is defined in the positive x-direction.
dc.publisherAmerican Institute of Aeronautics and Astronautics
dc.sourceJournal of Propulsion and Power
dc.subjectKeywords: Argon plasmas; Beam deflection; Double layers; Magnetic ions; Primary axis; Radio frequencies; Retarding field energy analyzers; Solenoidal currents; Spatial measurements; Transverse magnetic field; Argon; Beam plasma interactions; Deflection (structures)
dc.titleMagnetic Ion Beam Deflection in the Helicon Double-Layer Thruster
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume26
dc.date.issued2010
local.identifier.absfor020204 - Plasma Physics; Fusion Plasmas; Electrical Discharges
local.identifier.ariespublicationu4735977xPUB53
local.type.statusPublished Version
local.contributor.affiliationCox, Wesley, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationCharles, Christine, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationBoswell, Roderick, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationLaine, Robert, ASTRIUM-EADS
local.contributor.affiliationPerren, M, ASTRIUM-EADS
local.description.embargo2037-12-31
local.bibliographicCitation.issue5
local.bibliographicCitation.startpage1045
local.bibliographicCitation.lastpage1052
local.identifier.doi10.2514/1.49202
local.identifier.absseo880305 - Space Transport
dc.date.updated2016-02-24T11:22:28Z
local.identifier.scopusID2-s2.0-77958198976
local.identifier.thomsonID000282793500016
CollectionsANU Research Publications

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