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Shot Noise

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shot noise
(Schottky noise) The random emission and velocity of electrons from a cathode, which was discovered by Walter Schottky. See Schottky.
shot noise [′shät ‚nȯiz]
(electronics)
Noise voltage developed in a thermionic tube because of the random variations in the number and the velocity of electrons emitted by the heated cathode; the effect causes sputtering or popping sounds in radio receivers and snow effects in television pictures. Also known as Schottky noise; shot effect.

Shot Noise 

random changes (fluctuations) in voltage and current relative to their mean value in the circuits of amplifiers, radios, and other electronic devices; caused by the shot effect in vacuum electronic and semiconductor instruments. For example, shot noise appears as acoustic noise in the loudspeaker of a radio, “snow” on a television screen, and “grass” on a radar screen. Shot noise is the basic component of the internal noises of electronic devices, which cause the distortion of weak signals and limit the sensitivity of amplifiers.



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According to Sims' own laboratory testing, use of the Super Quads can reduce shot noise by up to 80 percent.
Normal convergence of multidimensional shot noise and rates of this convergence.
The 90 or so contributions fall into general topics such as theoretical and experimental frontiers in noise and fluctuations, enhanced and suppressed shot noise, noise and coherence, the constructive role of noise, noise in biological systems, and noise in complex systems and non-Gaussian fluctuations.
 
 
 
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