Particle density - same as number density. Application of a magnetic field to a plasma will tend to create circulating current within the plasma that will reduce the strength of the magnetic field. See also classical diffusion, neoclassical diffusion, anomalous diffusion, transport. Opposite of Alternating Current. The dispersion relation and its mathematical structure provide important information about the wave, including the phase and group velocities.
Major disruptions can cause an abrupt temperature drop and the termination of the plasma.
Different combinations of position and spatial coordinates are useful in different problems. In a reactor, the divertor would incorporate a system for pumping out the neutralized particles as exhaust from the machine. A divertor, like a limiter, prevents the particles from striking and degrading the chamber walls and dislodging secondary particles that would cool and contaminate the plasma. Whereas a limiter is a material object used to limit the shape of the plasma, a divertor is a magnetic-field construction. The advantage of the divertor is that it allows the neutralization region to be removed from the main plasma.