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Order type
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Revision as of 09:49, 18 January 2014 by en>JRSpriggs(→Rational numbers: fix awkward sentence)
Plasma parameters define various characteristics of a plasma, an electrically conductive collection of charged particles that responds collectively to electromagnetic forces. Plasma typically takes the form of neutral gas-like clouds or charged ion beams, but may also include dust and grains. [1] The behaviour of such particle systems can be studied statistically. [2]
classical distance of closest approach, the closest that two particles with the elementary charge come to each other if they approach head-on and each have a velocity typical of the temperature, ignoring quantum-mechanical effects:
electron gyroradius, the radius of the circular motion of an electron in the plane perpendicular to the magnetic field:
ion gyroradius, the radius of the circular motion of an ion in the plane perpendicular to the magnetic field:
plasma skin depth, the depth in a plasma to which electromagnetic radiation can penetrate:
Debye length, the scale over which electric fields are screened out by a redistribution of the electrons:
Ion inertial length, the scale at which ions decouple from electrons and the magnetic field becomes frozen into the electron fluid rather than the bulk plasma: