This experiment will characterise dark matter detector material. Lowest levels of natural radioactivity in high purity samples will be analysed via ultra-senstive single atom counting using acclerator mass spectrometry.

Nuclear data are urgently required in national security, non-proliferation, nuclear criticality safety, medical applications, fundamental science and for the design of advanced reactor concepts (fusion, e.g. ITER), or next generation nuclear power plants (Gen IV, accelerator driven systems, ...).

The Cretaceous–Tertiary (K–T) mass extinction about 66 million yearsa go is believed to be caused by a massive impact, most likely an asteroid or a comet. Within this project we will analyse a sample from this time to search for supernova-signatures.

A fundamental scientific question is a better understanding of the elemental abundances and the isotopic pattern of our solar system which is a fingerprint of stellar nucleosynthesis. We perform nucleosynthesis in the laboratory at the ANU via a new and powerful tool, accelerator mass spectrometry, to elucidate open questions in these processes.

Detection of supernova‐produced (radio)nuclides in terrestrial archives gives insight into massive star nucleosynthesis; when and where are heavy elements formed. Direct observation of radioactive nuclides from stars and the interstellar medium would provide first experimental constraints on production rate.s We will use the most sensitive technique, accelerator mass spectrometry.