| Position | Senior Fellow |
|---|---|
| Department | Nuclear Physics & Accelerator Applications |
| Research group | Nuclear structure group |
| Office phone | (02) 612 53526 |
| Office | Nuclear Physics 2 53 |
AJ Mitchell is an experimental nuclear physicist at the Australian National University specialising in nuclear structure and radioactive decay. His research focuses on the development and application of charged-particle and γ-ray spectroscopy techniques to investigate the structure of atomic nuclei, particularly systems with extreme neutron?to?proton ratios.
His work combines experimental measurements with instrumentation development to study how nuclear properties evolve with neutron number, including the behaviour of single-particle states and the structure of exotic nuclei far from stability. These studies provide insight into the fundamental behaviour of nuclei and contribute to understanding processes relevant to nucleosynthesis and radioactive decay.
A central aspect of his research is the development of experimental capability for nuclear spectroscopy. This includes work on detector systems and experimental infrastructure to enable measurements of nuclear structure and decay properties that are not otherwise accessible, particularly for rare or short-lived nuclear systems.
His research draws on experiments conducted at both national and international facilities, including work at Argonne National Laboratory, thw Facility for Rare Isotope Beams and other major accelerator laboratories, and contributes to experimental programs investigating nuclear structure and decay across a wide range of isotopes.
In addition to research, he contributes to teaching, supervision, and outreach in nuclear science. He has worked extensively with undergraduate students through programs such as the Tuckwell Scholarship and is actively involved in science communication, laboratory outreach, and international training initiatives in the Asia-Pacific region.
Academic career
Research interests centre on nuclear structure and radioactive decay, with a particular focus on spectroscopy of neutron-rich nuclei and the evolution of single-particle and collective behaviour far from stability.
This work integrates:
Current research addresses:
Research awards
2023: Visiting Fellow Award, Facility for Rare Isotope Beams, USA.
AJ contributes to teaching and supervision across undergraduate and postgraduate programs in nuclear physics and nuclear science at ANU. He supervises research projects spanning Honours, Masters, and PhD levels, with student work integrated into experimental research programs.
He has a strong focus on research?led education, including the development of practical laboratory experiences in radiation detection and γ?ray spectroscopy, and has contributed to mentoring of students and early career academics.
Teaching Awards
Program Convenor
Course Convenor/Lecturer
Former Honours/Masters (Advanced) students
Awards
AJ contributes to engagement in nuclear science through sustained laboratory-based outreach, education programs, and international training activities.
At ANU, he hosts regular visits to the Heavy Ion Accelerator Facility, delivering hands?on training in radiation detection and nuclear physics for secondary school students, teachers, and government participants. These activities provide direct access to experimental nuclear science and are integrated with teaching and training programs.
His international engagement includes physics education and training activities in the Asia-Pacific region, including teacher-training initiatives in Timor-Leste and collaborative programs with the University of Yangon in Myanmar, supporting capacity development in nuclear science and experimental methods.