Plasma parameters and electron energy distribution functions in a magnetically focused plasma | Zendy

C.M. Samuell | Zendy; B. D. Blackwell | Zendy; J. Howard | Zendy; Cormac Corr | Zendy

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Plasma parameters and electron energy distribution functions in a magnetically focused plasma

Author(s) -

C.M. Samuell,

B. D. Blackwell,

J. Howard,

Cormac Corr

Publication year - 2013

Publication title -

physics of plasmas

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.75

H-Index - 160

eISSN - 1089-7674

pISSN - 1070-664X

DOI - 10.1063/1.4794841

Subject(s) - atomic physics , plasma , physics , electron temperature , electron , electron density , magnetic field , plasma parameters , range (aeronautics) , ion , materials science , nuclear physics , quantum mechanics , composite material

Spatially resolved measurements of ion density, electron temperature, floating potential, and the electron energy distribution function (EEDF) are presented for a magnetically focused plasma. The measurements identify a central plasma column displaying Maxwellian EEDFs at an electron temperature of about 5 eV indicating the presence of a significant fraction of electrons in the inelastic energy range (energies above 15 eV). It is observed that the EEDF remains Maxwellian along the axis of the discharge with an increase in density, at constant electron temperature, observed in the region of highest magnetic field strength. Both electron density and temperature decrease at the plasma radial edge. Electron temperature isotherms measured in the downstream region are found to coincide with the magnetic field lines.

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