atom probe


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atom probe

[′ad·əm ‚prōb]
(engineering)
An instrument for identifying a single atom or molecule on a metal surface; it consists of a field ion microscope with a probe hole in its screen opening into a mass spectrometer; atoms that are removed from the specimen by pulsed field evaporation fly through the probe hole and are detected in the mass spectrometer.
References in periodicals archive ?
serial sectioning and atom probe tomography, high resolution transmission electron microscopy); d) processing/characterization of carbon materials, metal and ceramic matrix composites as well as functionally graded materials; and e) performance testing for targeted applications (available through special designed testing facilities at the research centres and industrial partners).
They cover density, thermal properties, and the glass transition temperature of glasses; infrared spectroscopy; Raman spectroscopy; Brillouin light scattering; neutron diffraction techniques for structural studies; X-ray diffraction from glass; X-ray absorption fine structure (SAFS) spectroscopy and glass structure; nuclear magnetic resonance spectroscopy; advanced dipolar solid-state nuclear magnetic resonance spectroscopy; and atom probe tomography.
ORNL's scanning transmission electron microscopy and atom probe tomography allow researchers to identify and examine the location and chemistry of each atom in the alloy matrix, precipitates and the interfaces between them.
s LEAP 5000 (Local Electrode Atom Probe Microscope) enable researchers in commercial, academic and institutional environments to gain new insights into the materials and processes that will be used in these applications.
In addition to high-resolution scanning electron microscopes and a transmission electron microscope, which is capable of imaging at extremely high resolutions, CCEM is also home to Canada's only 3D atom probe.
The LYRA is a FIB-SEM workstation and will be used for preparing atom probe tomography and transmission electron microscope specimens.
Concluding a comprehensive two-volume reference on phase transformations in steel, scientists and engineers in metals and materials consider such topics as the crystallography of martensite transformations in steels, shape memory in ferrous alloys, phase transformations in quenched and partitioned steels, first principles in modeling phase transformation in steels, the molecular dynamics modeling of martensitic transformations in steels, atom probe tomography for studying phase transformations in steels, and applying synchrotron and neutron scattering techniques for tracking phase transformations in steels.
Aluru said that materials scientists will use the supercomputer to analyze data from the university's Local Electrode Atom Probe microscope, an instrument that can gather data and produce images at the atomic scale of billionths of a meter.
Other differences include a chapter on scanning probe microscopy; an expanded treatment of electron microscopy, now discussed in individual chapters on transmission techniques and scanning methods; and an expanded chapter on quantitative analysis that accommodates recent advances in three- dimensional reconstruction, including orientation imaging microscopy and atom probe tomography.
The device, called the Local Electrode Atom Probe (LEAP), is housed at Northwestern University and is now one of only four such tools in North America.
TECHNOLOGY group Polaron said it had launched a laser version of its 3-D Atom Probe, which is used to visualise the atomic structure of silicon devices and is specifically targeted at the semiconductor manufacturing market.
The 3D Atom Probe is an imaging tool that creates a picture of the atoms in a substance, allowing its nanoscale properties to be viewed in 3D.