Negative Characteristics of a Probe in a Magnetic Field

Dote, Toshihiko; Sugiura, Masaru

doi:10.1143/jpsj.17.1662

J. Phys. Soc. Jpn.

1962

DOI: 10.1143/jpsj.17.1662

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Negative Characteristics of a Probe in a Magnetic Field

Toshihiko Dote

Masaru Sugiura²

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1964

1982

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Theory of a spherical probe in a collisionless magnetoplasma

Rubinstein

1982

The Physics of Fluids

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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≪Debye length, shows negative-resistance behavior. One of the upper bounds is based on the use of particle canonical angular momentum conservation to define allowed and forbidden regions for particle orbits, and generalizes an existing theory by Parker and Murphy to include particle thermal motion.

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Theory of a spherical probe in a collisionless magnetoplasma

Rubinstein

1982

The Physics of Fluids

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Negative Characteristic of a Cylindrical Probe in a Magnetic Field

Dote

Amemiya

1964

J. Phys. Soc. Jpn.

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Negative Characteristics of a Probe in a Magnetic Field

Cited by 2 publications

References 0 publications

Theory of a spherical probe in a collisionless magnetoplasma

Theory of a spherical probe in a collisionless magnetoplasma

Negative Characteristic of a Cylindrical Probe in a Magnetic Field

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