D. Blavette et al., A NEW-GENERATION OF 3-DIMENSIONAL ATOM-PR OBE, Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre, 317(10), 1993, pp. 1279-1285
The tomographic atom-probe that was constructed enables three-dimensio
nal atomic reconstructions of a small volume of a metallic alloy to be
obtained. The specimen to be analysed is prepared in the pat of a sha
rply pointed needle. Each species is mass analysed and positions are d
etermined with an accuracy of a few tenths of nanometres. 3D images pr
ovided by this new generation of instrument are given as an illustrati
on of performance.