Theory of a spherical probe in a collisionless magnetoplasma

Journal Article · Thu Jul 01 04:00:00 EDT 1982 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.863886· OSTI ID:5224877

Rubinstein, J; Laframboise, J G

A theory is presented for a spherical electrostatic probe in a collisionless, Maxwellian plasma containing a uniform magnetic field. The theory yields two upper bounds and an adiabatic limit for collection of the attracted particle species (either electrons or ions). For the repelled species, it yields a lower and an upper bound. The theory is similar in concept to existing theories for cylindrical probes by Laframboise and Rubinstein. It is applicable when the ratio of probe radius to Debye length is small enough, and/or the probe potential is large enough, that no potential barriers exist near the probe. Otherwise, a theory of Sanmartin applies. The attracted-particle current in the adiabatic limit, i.e., when mean gyroradius<

• Research Organization: Physics Department, York University, Toronto, Ontario, Canada M3K1P3
• OSTI ID: 5224877
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 25:7; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ANALYTICAL SOLUTION
BOLTZMANN STATISTICS
COLLISIONLESS PLASMA
CONFIGURATION
ELECTRIC PROBES
ELECTROSTATIC PROBES
LANGMUIR PROBE
MAGNETIC FIELDS
PLASMA
PROBES
SPHERICAL CONFIGURATION
STEADY-STATE CONDITIONS