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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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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In the shot noise limit the magnetometer can reach a sensitivity of 7 fT for 1 s integration time. 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. Through measurement and simulations, NIST researchers identified two components to the amplitude noise: a low-frequency component, which arises from amplification of the input laser's technical noise; and a broadband component, which arises primarily from amplification of the shot noise on the input laser pulse. |
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