+A **particle beam** is a concentrated stream of [Subatomic Particles](/wiki/subatomic_particles), often moving at high velocity through a vacuum or controlled medium. These focused energies find application in diverse fields, from [Particle Accelerators](/wiki/particle_accelerators) in fundamental research to medical therapy and industrial processes.
+## See also
+- [Plasma](/wiki/plasma)
+- [Ion Engine](/wiki/ion_engine)
+- [Beam Weapon](/wiki/beam_weapon)
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