The azimuthal plasma current in a magnetic nozzle of a radiofrequency plasma thruster is
experimentally identified by measuring the plasma-induced magnetic field. The axial plasma …

Electron energy distributions upstream of a current-free double layer (CFDL) contained in a
low-collisional plasma are modeled and compared with experimental results. The …

Two-dimensional characterization of the plasma plume is experimentally performed
downstream of a magnetically steered radiofrequency plasma thruster, where the ion beam …

The wake formation behind objects in flowing plasmas is studied for supersonic flow
velocities by numerical simulations. The objects are charged self-consistently by plasma …

Two-dimensional (2-D) density and potential measurements have been carried out for
plasma diffusing through an aperture in a diverging magnetic field. The radial density profile …

Current-free double layers of the type reported in plasmas in the presence of an expanding
magnetic field [C. Charles and RW Boswell, Appl. Phys. Lett. 82, 1356 (2003)] are modeled …

Abstract A 6.6 cm-inner-diameter permanent-magnets-expanding plasma source is
connected to a large-volume diffusion chamber of about 76 cm diameter and 100 cm length …

Argon ion beams up to E b= 165 eV at P rf= 500 W are observed in the Madison Helicon
eXperiment (MadHeX) helicon source with a magnetic nozzle. A two-grid retarding potential …

Correlation between radial plasma transport and formation of an axial ion beam has been
investigated in a helicon plasma reactor implemented with a convergent-divergent magnetic …

In situ and ex situ techniques have been used to measure directional ion beams created by
a sharp axial potential drop in low pressure expanding plasmas. Although Retarding Field …