The program consists of a research thesis-based PhD in two streams, Medical Physics and Radiation Biology. Research is conducted with faculty using McMaster radiation facilities or at area hospitals<br><br>Areas of Research<br>Brachytherapy radioisotopes, interface dosimetry, imaging dose distributions, neutron micro-dosimetry,<br>Nuclear and atomic techniques used for analysis of both trace toxic elements and major components of human body composition,<br>Development of novel radiopharmaceuticals and medical use of radioisotopes in diagnosis and therapy,<br>Novel methods of imaging bone architecture and joint structure non-invasively,<br>Magnetic Resonance Imaging,<br>DNA damage and DNA repair processes in carcinogenesis,<br>Adaptive response, genomic instability and bystander effect in radiation risk assessment of human and non-human biota,<br>Laser and light propagation in tissue for photodynamic therapy and tissue characterization,<br>Skeletal muscle function and the mechanisms of repair/regeneration,<br>Radiation occident dosimetry,<br>Advanced methods of optimization for intensity modulated radiation therapy (IMRT) and gel dosimetry