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field-emission tip

См. также в других словарях:

  • Field Emission Electric Propulsion — (FEEP) is an advanced electrostatic propulsion concept, a form of ion thruster, that uses liquid metal (usually either caesium or indium) as a propellant. A FEEP device consists of an emitter and an accelerator electrode. A potential difference… …   Wikipedia

  • Field emission gun — A field emission gun is a type of electron gun in which the emitter tip is held at several kilovolts negative potential relative to a nearby electrode, so that there is sufficient potential gradient at its surface to cause field emission of… …   Wikipedia

  • field emission microscopy — noun a technique that uses field emission of electrons or positive ions from the needle shaped tip of an emitter to produce a magnified image of the emitter surface (showing each atom) on a fluorescent screen …   Wiktionary

  • Field ion microscope — Field ion microscopy (FIM) is an analytical technique used in materials science. The field ion microscope is a type of microscope that can be used to image the arrangement of atoms at the surface of a sharp metal tip.It was the first technique by …   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

  • Field Emitter Array — A vacuum electronics device, made of a substrate on which small Spindt tips are microfabricated. Upon receiving a voltage, the tips emit electrons by field emission, functioning like a cold cathode.Spindt, Shoulders and Heynick filed a U.S.… …   Wikipedia

  • Spindt tip — A Spindt tip is a tiny conical tip microfabricated on a substrate, which emits electrons by field emission. It is named after its inventor Charles A. Spindt who developed this technology at SRI International.Because of its small size (micrometer… …   Wikipedia

  • Near-field scanning optical microscope — Near field scanning optical microscopy (NSOM/SNOM) is a microscopic technique for nanostructure investigation that breaks the far field resolution limit by exploiting the properties of evanescent waves. This is done by placing the detector very… …   Wikipedia

  • microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… …   Universalium

  • 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

  • Static secondary ion mass spectrometry — Static secondary ion mass spectrometry, or static SIMS is a technique for chemical analysis including elemental composition and chemical structure of the uppermost atomic or molecular layer of a solid which may be a metal, semiconductor or… …   Wikipedia

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