GEOSCIENCE ATOM PROBE WEBSITE
November 17th, 2015
Spatial resolution: less than 1nm; Field of view: larger than 200nm (3D), larger than 500nm (1D); TOF mass resolution: higher than 1000 (M/∆MFWHM); Chemical sensitivity: less than 10ppm.
Detection efficiency: ~37%; Equal sensitivity to all ion species, from H+ to large molecular ion complexes.
The strength of the APT technique is in providing chemical information in relation to specific nano-scale features of interest. For example, the partitioning of elements to a particular phase, grain boundary, or defect. Regions of interest can be targeted by preparation of needle-shaped specimens using a focussed ion beam (FIB).
• Characterization of minerals and ores
• Trace element mapping
• Extra-terrestrial isotope analysis
• Alloy engineering
• Oxides and corrosion processes
• Device structures
• Multi-layer structures
• III-V seimconductors