- 1977, Company Founded by Peter Annad & Peter Leyne
- 1979, Dr Munoz-Ferrada hired as a consultant
- 1982, First Nuclear medicine radiation detector was developed- Research & Development department established
- 1985, Dr Munoz-Ferrada became 30% shareholder
- 1984, Firing weapon control system capabilities for Australian F1-11
- 1986, Development of first environmental radiation detectors to be installed in European airports
- 1987, Professor acquires all of Gammasonics ADL – Formation of Gammasonics Radiological Services, a division of Gammasonics to service and maintain radiation measurement equipment and calibration
- 1990, Gammasonics renamed Institute for medical research
- 1993, ReDesign of calibration facility for instrumentation
- 1994, Gammaprobe research commences
- 1995, Gammasonics signed an agreement with Wollongong University for research
- 1996, Agreement signed with De La Salle University in the Philippines. – The first clinical trial of Gammaprobe – First design of Envirorad System
- 1997, New Austral-Rad detector developed
- 2000, Professor developed further technology in Australia for the worldwide market. Many relationships made with universities research centres and manufacturers throughout the world.
