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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
  • 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]