Nuclear and Accelerator-based Physics

Gamma-ray Spectroscopy

Staff: Anna Wilson

Work using the ANU Heavy-ion accelerator facility in

Department of Nuclear Physics RSPhysSE,

performed in close collaboration with members of that Department, is a continuing activity in a number of areas. In particular recent work has focused on studies of shape coexistance effects in the light lead and thallium nuclei, studies of the neutron deficient radon nuclei and nuclei on the neutron rich side of the doubly magic 208Pb core. The work uses the CAESAR gamma-ray detector array which has been recently enhanced significantly with the addition of large volume Compton suppressed Ge detectors.

Nuclear Techniques applied to materials

Aidan Byrne

Animation: C Byrne

Material properties are investigated using the Perturbed Angular Correlation method. In this technique the local electric and magnetic fields in materials can be determined by measuring the time variation in intensity of the radiation pattern emitted from radioactive nuclei. In our studies we produce and implant the probe nuclei using beams from the 14UD particle accelerator. Current work is focusing on ion-beam induced damage in semiconductors using the 111In probe and the use of the 100Pd probe to study cavities in silicon. We have ongoing collaborations with researchers in the Department of Electronic Materials Engineering, in the Research School of Physical Sciences, ANU , with the Hyperfine Interactions group at the ISKP in Bonn and with the Department of Physics, University College, ADFA. The latter collaboration has involved the construction of an ion implanter for use with radioactive ions

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Aidan.Byrne@anu.edu.au