Shot noise
Type of electronic noise
Shot noise
Shot noise or Poisson noise is a type of noise which can be modeled by a Poisson process. In electronics, shot noise originates from the discrete nature of electric charge. Shot noise also occurs in photon counting in optical devices, where shot noise is associated with the particle nature of light. Shot noise is also observed in nuclear physics where particles like neutrons, muons, alpha particles, beta particles (electrons), or gamma rays impinge on their respective particle detector.
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