Plasmas are by far the most common phase of matter in the universe, both by mass and by volume.[4] All the stars are made of plasma, and even the space between the stars is filled with a plasma, albeit a very sparse one. In our solar system, the planet Jupiter accounts for most of the non-plasma, only about 0.1% of the mass and 10−15% of the volume within the orbit of Pluto. Very small grains within a gaseous plasma will also pick up a net negative charge, so that they in turn may act like a very heavy negative ion component of the plasma (see dusty plasmas).
Common forms of plasma include |
Artificially produced plasmas - Those found in plasma displays, including TVs
- Inside fluorescent lamps (low energy lighting), neon signs[5]
- Rocket exhaust and ion thrusters
- The area in front of a spacecraft's heat shield during reentry into the atmosphere
- Inside a corona discharge ozone generator
- Fusion energy research
- The electric arc in an arc lamp, an arc welder or plasma torch
- Plasma ball (sometimes called a plasma sphere or plasma globe)
- Arcs produced by Tesla coils (resonant air core transformer or disruptor coil that produces arcs similar to lightning but with alternating current rather than static electricity)
- Plasmas used in semiconductor device fabrication including: Reactive Ion Etching, Sputtering, and Plasma Enhanced Chemical Vapor Deposition
- Laser-produced plasmas (LPP), found when high power lasers interact with materials.
- Inductively Coupled Plasmas (ICP), formed typically in argon gas for Optical Emission Spectroscopy or Mass Spectroscopy
- Magnetically Induced Plasmas (MIP), typically produced using microwaves as a resonant coupling method
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