scanning transmission electron microscope

scanning transmission electron microscope

[′skan·iŋ tranz′mish·ən i′lek‚trän ′mī·krə‚skōp]
(electronics)
A type of electron microscope which scans with an extremely narrow beam that is transmitted through the sample; the detection apparatus produces an image whose brightness depends on atomic number of the sample. Abbreviated STEM.
References in periodicals archive ?
the fraunhofer imws is looking for a transmission electron microscope (tem), which can also be operated as a scanning transmission electron microscope (stem), with a maximum acceleration voltage of 200 kv for the microstructural characterization of material samples.
In the usual scanning transmission electron microscope (STEM), a narrow beam of electrons is fired down through a sample, scanning back and forth to produce an image.
The Nion Hermes Scanning Transmission Electron Microscope, one of only three in the world, is powerful enough to pinpoint the position of single atoms.
The new Scanning Transmission Electron Microscope, installed at the SuperStem laboratory at Daresbury in Cheshire, is not only able to pinpoint the position of single atoms but to analyse the bonds between atoms.
nanoGUNE now has the world's most advanced commercially-available microscope, the Titan(TM) scanning transmission electron microscope (S/TEM); a Quanta(TM) FEG (field emission gun); and a Helios NanoLab(TM) DualBeam(TM) nanofabrication tool in its new facility.
To spot the camera-shy hydrogen atoms, each team developed slightly different ways of detecting how the materials deflected the electrons in the beam of a scanning transmission electron microscope.
To test the process, the team, led by materials scientist Stephen Pennycook, made an image of a silicon crystal using a 300-kilovolt scanning transmission electron microscope.
Tenders are invited for Scanning Transmission Electron Microscope (Stem) And Energy Dispersive Spectroscopy (Eds)
Miller at the University of Minnesota in Minneapolis and his colleagues developed an improved method for using a scanning transmission electron microscope (STEM) to measure organic molecules' lenghts.
Scientists at the Department of Energys Oak Ridge National Laboratory are the first to harness a scanning transmission electron microscope (STEM) to directly write tiny patterns in metallic ink, forming features in liquid that are finer than half the width of a human hair.
A scanning transmission electron microscope (STEM, S/TEM refers to both techniques collectively) scans a finely focused beam over the sample and forms a virtual image that correlates a signal derived from transmitted electrons with the instantaneous position of the beam.
Besides conventional transmission electron microscopy the TEM system must also include scanning transmission electron microscope (STEM) operation mode.

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