Thermionic emission is the liberation of charged particles from a hot electrode whose thermal energy gives some particles enough kinetic energy to escape...

or field enhanced thermionic emission is a phenomenon in condensed matter physics named after Walter H. Schottky. In electron emission devices, especially...

difference has been applied. The type known as a thermionic tube or thermionic valve utilizes thermionic emission of electrons from a hot cathode for fundamental...

radius of about 100 nm, or of the Schottky type,: 1–28  in which thermionic emission is enhanced by barrier lowering in the presence of a high electric...

tubes, a hot cathode or thermionic cathode is a cathode electrode which is heated to make it emit electrons due to thermionic emission. This is in contrast...

as a form of field emission. The terminology is historical because related phenomena of surface photoeffect, thermionic emission (or Richardson–Dushman...

in the vacuum are excluded in defining the work function. Thermionic emission In thermionic electron guns, the work function and temperature of the hot...

experiment Emission theory (vision), the proposal that visual perception is accomplished by rays of light emitted by the eyes Thermionic emission, the flow...

discharge is initiated either by thermionic emission or by field emission. After initiation, the arc relies on thermionic emission of electrons from the electrodes...

due to the: Schottky effect or field enhanced thermionic emission Field electron emission, emission of electrons induced by an electrostatic field An...

the surface, an effect called thermionic emission. This technique is used in most vacuum tubes. Field electron emission: A strong electric field can be...

emission or thermionic emission. Thermionic emission occurs when the thermal energy exceeds the metal's work function, while field electron emission occurs...

electron gun is large enough. In this case, the emission current is regulated by the thermionic emission process, given by the Richardson Dushman equation...

but are not hot enough for significant thermionic emission. Because cold cathode lamps have no thermionic emission coating to wear out, they can have much...

electronic viewpoint, thermionic energy conversion is the direct production of electric power from heat by thermionic electron emission. From a thermodynamic...

flowing through the barrier is essentially governed by the laws of thermionic emission, combined with the fact that the Schottky barrier is fixed relative...

considered "cold" if it emits more electrons than can be supplied by thermionic emission alone. It is used in gas-discharge lamps, such as neon lamps, discharge...

causes it to release electrons into the vacuum, a process called thermionic emission. The cathode is coated with oxides of alkaline earth metals, such...

cover certain apparent exceptions. In 1853, Becquerel discovered thermionic emission. In 1867 and 1868 Becquerel published La lumière, ses causes et ses...

thermionic emission or use thin barriers and transport carriers via tunneling. Carrier lifetime for escape is determined by tunneling and thermionic emission...

devices, technical physics and technology. The Schottky effect (a thermionic emission, important for vacuum tube technology), the Schottky diode (where...

The Diode equation includes the emission coefficient (which is not related to the one discussed here) Thermionic emission Incorporated, SynLube. "Spectroscopy...

electrons either through heating (thermionic emission) or in an electric field that is sufficient to cause field electron emission. Once initiated, a vacuum arc...

physicist who won the Nobel Prize in Physics in 1928 for his work on thermionic emission, which led to Richardson's law. Richardson was born in Dewsbury,...

rather than as free electrons across a vacuum (typically liberated by thermionic emission) or as free electrons and ions through an ionized gas. Semiconductor...

resembles a vacuum tube in appearance, its operation does not depend on thermionic emission of electrons from a heated cathode. It is hence a cold-cathode tube...

an electron by secondary emission. In an arc discharge, electrons leave the cathode by thermionic emission and field emission, and the gas is ionized by...

electrons, a heated filament or hot cathode which releases electrons by thermionic emission. The ionization method of creating cathode rays used in Crookes tubes...

electrostatic thermionic electron gun is formed from several parts: a hot cathode, which is heated to create a stream of electrons via thermionic emission; electrodes...

its surface; these were the cathode rays. Modern vacuum tubes use thermionic emission, in which the cathode is made of a thin wire filament which is heated...