field-emission microscope
- field-emission microscope
-
/feeld"i mish'euhn/
a device in which electrons liberated by field emission are accelerated toward a fluorescent screen to form a magnified image of the emitting surface. Cf.
field-ion microscope.
[1950-55]
* * *
Universalium.
2010.
Look at other dictionaries:
field-emission microscope — noun electron microscope used to observe the surface structure of a solid • Hypernyms: ↑electron microscope * * * /feeld i mish euhn/ a device in which electrons liberated by field emission are accelerated toward a fluorescent screen to form a… … Useful english dictionary
field emission microscope — autoemisinis elektroninis mikroskopas statusas T sritis radioelektronika atitikmenys: angl. field emission microscope vok. Feldelektronenmikroskop, n; Feldemissionsmikroskop, n rus. автоэмиссионный микроскоп, m; автоэмиссионный электронный… … Radioelektronikos terminų žodynas
field emission microscope — noun the instrument used in field emission microscopy … 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-ion microscope — /feeld uy euhn, uy on/ a device in which the atomic structure of the surface of a conductor is made visible by introducing helium gas into the device and applying a high voltage to ionize and accelerate the gas toward a fluorescent screen. Cf.… … Useful english dictionary
field-ion microscope — /feeld uy euhn, uy on/ a device in which the atomic structure of the surface of a conductor is made visible by introducing helium gas into the device and applying a high voltage to ionize and accelerate the gas toward a fluorescent screen. Cf.… … Universalium
Field emission — (FE) is the emission of electrons from the surface of a condensed phase into another phase due to the presence of high electric fields. In this phenomenon, electrons with energies below the Fermi level tunnel through the potential barrier at the… … 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 emission microscopy — (FEM) is an analytical technique used in materials science to investigate molecular surface structures and their electronic properties. [cite web | title = Intro to Field Emission | publisher = Field Emission / Ion Microscopy Laboratory, Purdue… … Wikipedia
field emission — Physics. the removal of electrons from a metallic conductor by a strong electric field. [1925 30] * * * ▪ physics also called Cold Emission, discharge of electrons from the surface of a material subjected to a strong electric field. In… … Universalium