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Beam may refer to:

Streams of particles or energy[edit]

  • Light beam, or beam of light, a directional projection of light energy
  • Radio beam
  • Particle beam, a stream of charged or neutral particles
    • Charged particle beam, a spatially localized group of electrically charged particles
      • Cathode ray, or electron beam or e-beam, streams of electrons observed in discharge tubes
      • X-ray beam, a penetrating form of high-energy electromagnetic radiation
    • Molecular beam, a beam of particles moving at approximately equal velocities

Arts, entertainment and media[edit]


Science and technology[edit]

Other uses[edit]

See also[edit]

  • Battle of the Beams, a period in World War 2 of air radio navigation countermeasures
  • Beam theory, or Euler–Bernoulli beam theory, a means of calculating load-carrying and deflection of structural beams
  • Beam antenna, or directional antenna, an antenna which radiates or receives greater power in specific directions
  • Bessel beam, a wave whose amplitude is described by a Bessel function
  • Blaster beam, a musical instrument
  • Gaussian beam, a beam of electromagnetic radiation whose amplitude is given by a Gaussian function
  • Beme (disambiguation)
  • "Light The Beam!", a rallying chant used by fans of the Sacramento Kings