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7. Three-dimensional imaging in SAT
The end result of an atom probe analysis is a 3D map of the position of atoms of each species (A, B, C...) within the probed volume.
Tens of millions of atoms can be collected for each analysis. Analyzing the information contained in the data sets is not trivial.
The dataset can be represented using various methods to deduce structural or chemical properties (precipitation, segregation, interdiffusion...) that may influence the material's physical properties.
The simplest way is to represent atoms by a set of colored points defined in 3D. Each point is then an atom with coordinates (x, y, z ). The color-coded chemical nature is deduced from the mass spectrum (figure 8...
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Three-dimensional imaging in SAT
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Bibliography
Patents
Atomic Tomographic Wide Angle Laser Probe with very high mass resolution, BOSTEL Alain , DECONIHOUT Bernard , YAVOR Mickael , RENAUD ludovic, Date de dépôt 12/10/2007 Numero INIST 07 07178
Wide Angle Atomic Tomographic Probe with evaporation assisted by a "white" femtosecond laser pulse, DECONIHOUT Bernard, VELLA Angela, Francois Vurpillot, BREVET INTERNATIONAL n WO/2010/000574 Application number int:...
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