Frequency Classification of Plasmas

Electrical discharges applied in a plasma source for the generation of plasmas can be classified by the frequency of the exciting field. A rough classification is:

Direct current discharge (DC)
Pulsed DC discharge (kHz)
Radio-frequency discharge (MHz) - sustained by two electron heating mechanisms: ohmic heating and stochastic heating
Microwave discharge (GHz)
Laser plasma (PHz)

The quality of the coupling of an exciting field of given frequency to a charged particle depends on the position and shape of the plasma resonance. It critically determines the character of the electrical discharge. If the more massive ions cannot follow the oscillating electromagnetic field, the exciting frequency is called high (HF). In this case, the main fraction of the power is transferred to the electrons. Frequency Classification of Plasmas

See Also

Etheric Elements
Etheric Vapor

Created by Dale Pond. Last Modification: Thursday June 28, 2012 12:28:06 MDT by Dale Pond.