Department of Physics and Astronomy

The Ion Physics Group

The ion physics group is studying how ions with high velocities interact in different materials.

Ion beams are used for analysis of materials, ranging from archeology and medicine to ultra thin surface coatings in optics or electronics and other applications. Our accelerators can also be used to actively change the properties of materials, or to structure samples at nanometer level. Fundamental research is carried out in the whole field, in order to meet future demands in the development and analysis of materials.

Get an overview over publications from the ion physics group.

Research projects

Accelerator Mass Spectrometry (AMS) addresses isotope ratios, which for rare isotopes requires measurements with extreme sensitivity in the 10-15 range. We have a state-of-the-art facility involved in a number of AMS applications including 14C-dating for archeological research as well various geological and environmental research niches using 10Be and 129I. Our biomedical AMS research group is at the forefront of international regenerative medicine research.

Ion beams also facilitate non-destructive, elemental composition analysis for virtually any solid material. This may be complemented with depth profile data in the nanometer length range or ion channelling, providing crystallographic information. 

High energy ions are also routinely used to irradiate samples and to modify materials for tailor-made properties; an example is band gap modification of semiconductors.

In order to maintain our position on the leading edge of applied physics, fundamental research is carried out to better understand the ion-matter interaction mechanism. This provides us with unique capabilities to face future analytical challenges.