Properties of Plasma
There are several properties of plasma, here we will discus a few very important properties.
1. Debye Shielding:
One of the most important properties of a plasma is the shielding of every charge in the plasma by a cloud of oppositely charged particles this is known as Debye shielding denoted by λD . The interesting information is this screening of the every charge 'q' of particle in a plasma is like coulomb potential (1/r).
2. Plasma parameter:
The plasma parameter denoted by ND describes the number of particle in the Debye sphere.
3. Landau Length:
The Landau length λL is a typical scale for coulomb collisions. It is the critical distance of two charge particles, for which the potential energy Ep equals the kinetic energy kBT. Where kB is the Boltzmann constant and T is the Temperature.
4. Plasma Frequency:
Plasma frequency is the most fundamental time-scale in plasma physics. It measures the frequency of rapid oscillation of electron density in conducting medium. The electron plasma frequency is large compared to the electron-neutral collision frequency (measuring frequency of collisions between electrons and neutral particles). Therefore the plasma frequency differs for different species.
