Elected: 1976
Discipline: Biomedical and Cognitive Sciences
Professor John Stewart Orr FRSE
Stewart Orr, who died on 21st October 2001, was an active, energetic, and helpful physicist, distinguished for both pure and applied research and practice, who greatly assisted medical colleagues, and their patients, most of whom had cancer. He became Professor of Medical Physics in the Royal Postgraduate Medical School, Hammersmith Hospital, and was soon known internationally for his accomplishments in cell and radiation biology, radiotherapy, imaging, and information technology.

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