On the interpretation of Langmuir probe data inside a spacecraft sheath

• If a Langmuir probe is located inside the sheath of a negatively charged spacecraft, there is a risk that the probe characteristic is modified compared to that of a free probe in the ambient plasma. We have studied this probe-in-spacecraft-sheath problem in the parameter range of a small Langmuir probe (with radius r(LP)<U-1, there is first a transition region II in applied potential, U-1

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

NATURVETENSKAP  -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Keyword

Ambient plasmas

Applied potentials

Cassini spacecraft

Curve shape

Debye length

Dense plasma

Key factors

OML theory

Parameter range

Particle simulations

Plasma parameter

Potential barriers

Potential minima

Potential range

Probe characteristics

Probe position

Probe size

Sheath problem

Space plasmas

Transition regions

Langmuir probes

Magnetosphere

Plasmas

Spacecraft

Astronomy and astrophysics

Astronomi och astrofysik

Plasma physics with fusion

Plasmafysik med fusion

Physics

Publication and Content Type

ref (subject category)

art (subject category)