- thermionic function
- Макаров: работа выхода при термоэлектронной эмиссии
Универсальный англо-русский словарь. Академик.ру. 2011.
thermionic function
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thermionic emission — n. the phenomenon of electron or ion emission from the heated surface of a conductor * * * ▪ physics discharge of electrons from heated materials, widely used as a source of electrons in conventional electron tubes (e.g., television picture … Universalium
Thermionic emission — Closeup of the filament on a low pressure mercury gas discharge lamp showing white thermionic emission mix coating on the central portion of the coil. Typically made of a mixture of barium, strontium and calcium oxides, the coating is sputtered… … Wikipedia
thermionic power converter — ▪ electronics Introduction also called thermionic generator, thermionic power generator, or thermoelectric engine any of a class of devices that convert heat directly into electricity using thermionic emission rather than first… … Universalium
Thermionic converter — A thermionic converter consists of a hot electrode which thermionically emits electrons over a potential energy barrier to a cooler electrode, producing a useful electric power output. Caesium vapor is used to optimize the electrode work… … Wikipedia
Work function — In solid state physics, the work function is the minimum energy (usually measured in electron volts) needed to remove an electron from a solid to a point immediately outside the solid surface (or energy needed to move an electron from the Fermi… … Wikipedia
electronic work function — ▪ physics energy (or work) required to withdraw an electron completely from a metal surface. This energy is a measure of how tightly a particular metal holds its electrons that is, of how much lower the electron s energy is when present… … Universalium
work function — noun : the energy that is needed for a particle to come from the interior of a medium and break through the surface used especially of the photoelectric and thermionic emission of electrons from metals … Useful english dictionary
Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… … Wikipedia
Field electron emission — It is requested that a diagram or diagrams be included in this article to improve its quality. For more information, refer to discussion on this page and/or the listing at Wikipedia:Requested images. Field emission (FE) (also known as field… … Wikipedia
Diode — Figure 1: Closeup of a diode, showing the square shaped semiconductor crystal (black object on left) … Wikipedia
Transmission electron microscopy — A TEM image of the polio virus. The polio virus is 30 nm in size.[1] Transmission electron microscopy (TEM) is a microscopy technique whereby a beam of electrons is transmitted through an ultra thin specimen, interacting with the specimen as it… … Wikipedia
