thermionic emission in a sentence

Examples

1. "' Thermionic emission "'is the thermally induced flow of charge carriers from a surface or over a potential-energy barrier.
2. Using this, he addresses applications such as new techniques for solar collectors ( Photo Enhanced Thermionic Emission, PETE ).
3. After receiving his M . A . in 1905, he began research on thermionic emission in the Cavendish Laboratory.
4. The heated filament, or cathode, was capable of thermionic emission of electrons that would flow to the " detector.
5. In the triode, electrons are released into the tube from the metal cathode by heating it, a process called thermionic emission.
6. Although it resembles a vacuum tube in appearance, its operation does not depend on thermionic emission of electrons from a heated cathode.
7. The heater is electrically isolated from the surrounding cathode and simply serves to heat the cathode sufficiently for thermionic emission of electrons.
8. Because cold cathode lamps have no thermionic emission coating to wear out they can have much longer lives than hot cathode tubes.
9. That current, known as the " Edison effect " or thermionic emission, can be characterized by a curve relating current and voltage.
10. Instead, they use a more reliable and controllable source of electrons, a heated filament or hot cathode which releases electrons by thermionic emission.