shot noise



  • A random form of noise arising from the discrete nature of electrons. Such noise may occur, for instance, as electrons randomly overcome a given potential barrier. In the specific case of a thermionic emitter, shot noise results in fluctuations in particle emissions, while in an electron tube or transistor it causes variations in the flow of electrons between electrodes. 2. Shot noise (1) observed in junction devices, such as pn diodes or bipolar junction transistors.
  • synonymSchottky noise
  • synonymshot effect