shot noise


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Related to shot noise: thermal noise, partition noise

shot noise

See noise.

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.

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

(Schottky noise) The random emission and velocity of electrons from a cathode, which was discovered by Walter Schottky. See Schottky.
References in periodicals archive ?
In case of shot noise, the noise current spectral density at frequencies over 100 Hz is given by :
It is well known that shot noise and consequently Fano factor is a powerful quantity to give information about controlling decoherence of spin dependent phenomena [12,13].
The other class of shot noise Cox processes is defined by the driving field [LAMBDA] of the form
Then go to a louder shot noise like, say, a starter pistol that uses shot shell primers.
It lies 50% above the shot noise level [DELTA]I = [square root of (2e[I.
We examine the Laplace transform of the distribution of the shot noise process using the martingale.
Although another archery innovator, Earl Hoyt, invented the very first stabilizer, Leven's patented ``Doinker'' system - unique because of its rubberized piece between the rod and end weight - has revolutionized the archery industry since 1993 by dramatically reducing shot noise and vibration and increasing shooter comfort.
The limb configuration helps minimize shot noise and vibration while also moving weight closer to the shooter's hand for a more balanced, compact and stable shooting platform.
This is probably because we tend to only think of stabilizers as accessories that might help our shooting, and disregard the fact that a good stabilizer will not only balance a bow, but also drastically cut down on shot noise.
Based on our acquired abilities, such as material growth, processing techniques, and sensitive measurement techniques, I plan to perform experiments, which include: thorough studies of downstream and upstream neutral modes via shot noise and thermoelectric current measurements; proving (or disproving) their involvement in dephasing fractionally charged quasi-particles; growing and processing structures that harbor Majorana states (in 1d nano-wires and in 2d FQHE regime; and, possibly, eventually, manipulate Majorana states (by coupling and braiding).
Key words: lateral bipolar magnetotransistor, noise current spectral density, shot noise, signal-to-noise ratio
Normal convergence of multidimensional shot noise and rates of this convergence.