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Helicon (physics) In electromagnetism, a helicon is a low-frequency electromagnetic wave that can exist in bounded plasmas in the presence of a magnetic field. The first helicons observed were atmospheric whistlers, [1][2] but they also exist in solid conductors [3][4] or any other electromagnetic plasma. The electric field in the waves is ...
Induction plasma. Induction plasma, also called inductively coupled plasma, is a type of high temperature plasma generated by electromagnetic induction, usually coupled with argon gas. The magnetic field induces an electric current within the gas which creates the plasma. The plasma can reach temperatures up to 10,000 Kelvin.
4.4 Radio-frequency heating. ... Reviews of Plasma Physics. pp. 153–199. ... on YouTube Section View Video of a small scale tokamak concept.
Radio frequency heating: a radio wave causes the plasma to oscillate (i.e., microwave oven). This is also known as electron cyclotron resonance heating, using for example gyrotrons, or dielectric heating. [58] Magnetic reconnection: when plasma gets dense, its electromagnetic properties can change, which can lead to magnetic reconnection ...
Thermal spraying. Thermal spraying techniques are coating processes in which melted (or heated) materials are sprayed onto a surface. The "feedstock" (coating precursor) is heated by electrical (plasma or arc) or chemical means (combustion flame). Thermal spraying can provide thick coatings (approx. thickness range is 20 microns to several mm ...
A plasma consists of a fluid of positive and negative charged particles, generally created by heating or photo-ionizing (direct / tunneling / multi-photon / barrier-suppression) a dilute gas. Under normal conditions the plasma will be macroscopically neutral (or quasi-neutral), an equal mix of electrons and ions in equilibrium. However, if a ...
A plasma antenna is a type of radio antenna currently in development in which plasma is used instead of the metal elements of a traditional antenna. [1] A plasma antenna can be used for both transmission and reception. [2] Although plasma antennas have only become practical in recent years [when?], the idea is not new; a patent for an antenna ...
If the magnetic field in the plasma is not stationary, either because the plasma as a whole is transient or because the fields are periodic (radio-frequency heating), the rate of change of the magnetic field with time (˙, read "B-dot") can be measured locally with a loop or coil of wire.