Plasma weapon

When discussing weapons in science fiction, a plasma weapon is a type of raygun that fires a stream, bolt(s), pulse or toroid of plasma (i.e. very hot, very energetic excited matter). The primary damage mechanism of these fictional weapons is usually thermal transfer; it typically causes serious burns, and often immediate death of living creatures, and melts or evaporates other materials. In certain fiction, plasma weapons may also have a significant kinetic energy component, that is to say the ionized material is projected with sufficient momentum to cause some secondary impact damage in addition to causing high thermal damage. In some fictions, like Star Wars, plasma is highly effective against mechanical targets such as droids. The ionized gas disrupts their systems.
Fictional plasma weapons are often visually analogous to real-life plasma torches that cut into materials for industrial use purposes; however, said torches currently only produce a plasma jet of several inches at most.
Real-life devices
Currently, there are several real tools that are somewhat related to fictional plasma weapons:
* The MARAUDER (Magnetically Accelerated Ring to Achieve Ultra-high Directed-Energy and Radiation) project.
* Plasma torches, which have existed for some years, project plasma streams a foot at most, and are used to cut metal and concrete.
* The plasma gun as used in plasma physics.
* Shiva Star is an attempt to make a real plasma-firing directed-energy weapon for use in space.
* Microscopic, very short plasma bursts from s are used in medicine, most widely in ophthalmology.
* There are several Tesla Coil-based devices (DIY Plasma Gun and Arc Attack) that produce electrical currents but only for entertainment and general interest.
* The Electrolaser.

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