title: Wall current probe: a non-invasive in situ plasma diagnostic for space and time resolved current density distribution measurement.
abstract: In the context of low temperature plasma research, we propose a wall current probe to determine the local charged particle fluxes flowing to the chamber walls. This non-intrusive planar probe consists of an array of electrode elements which can be individually biased and for which the current can be measured separately. We detail the probe properties and present the ability of the diagnostic to be used as a space and time resolved measurement of the ion and electron current density at the chamber walls. This diagnostic will be relevant to study the electron transport in magnetized low-pressure plasmas.
authors.affiliation: Université de Toulouse, UPS, INPT, LAPLACE (Laboratoire Plasma et Conversion d'énergie), 118 route de Narbonne, F-31062 Toulouse Cedex 9, France and CNRS, LAPLACE, F-31062, Toulouse, France.
authors.forename: R
authors.initials: R
authors.lastname: Baude
authors.forename: F
authors.initials: F
authors.lastname: Gaboriau
authors.forename: G J M
authors.initials: GJ
authors.lastname: Hagelaar