Atom Probe Tomography (APT) is an advanced materials characterisation technique that is renowned for high spatial resolution and analytical sensitivity.

Science Leader: Prof Steven Reddy,

An Atom Probe machine
The Geoscience Atom Probe is the first machine of its kind to be dedicated to resource characterisation in Australia.

It provides 3-dimensional imaging and compositional data measurement at sub-nanometre resolutions. The technique relies on laser-induced evaporation and ionisation of atoms from a finely milled tip of material coupled with time-of-flight mass analyser to build a 3D picture of atom distribution in the volume of interest.

Such an approach has potential applications to a broad range of disciplines. However recent advances in the technique now allow APT to be applied to geological materials.

The application of APT to geological materials is in its infancy. However the development of the Geoscience Atom Probe within the Advanced Resource Characterisation Facility provides a unique focus on the development and application of this exciting technique to the earth sciences discipline.

The Geoscience Atom Probe will be commissioned at Curtin University in the second half of 2015 and will complement existing infrastructure within the John De Laeter Centre (, including the Electron Microscopy Facility.

As part of the development of the Geoscience Atom Probe, Curtin University will be recruiting key researchers and PhD students in early 2015. Watch this space for further information about these positions.