Brief Bio
Paul Johns is a retired Professor of Physics at Carleton. He is still active in
research on campus in medical x-ray imaging, and has the title Distinguished Research Professor.
Paul's first degree was in Engineering Science, specializing in nuclear engineering, and he
worked at AECL Power Projects before entering medical physics as a U Toronto graduate student
at the Princess Margaret Hospital.
Subsequently he worked at what was then the Ottawa Civic Hospital (under secondment from
the Ottawa Regional Cancer Centre) as the first full-time radiological physicist in Diagnostic
Imaging, before joining Carleton in 1988.
Dr. Johns was the Chair of the Canadian Organization of Medical Physicists (COMP) (for some of
its early years, 1996-1998), and is a former Chair of the Physics Department at Carleton (2005-2008).
He was very active in the Executive of the Ottawa Medical Physics Institute (OMPI), and served
at various times as the Academic Officer/CAMPEP Program Director and as the Director.
He is a Fellow of the Canadian College of Physicists in Medicine and a Fellow of
the Canadian Organization of Medical Physicists. His retirement was in 2021.
Paul's continuing research focuses on a new way of acquiring diagnostic information using
elastic (coherent) x-ray scattering. He also has interest in dual-energy radiography, the
development of new detector technologies for digital radiography, radiation dose in x-ray
imaging, and in mapping the emission pattern of x-ray tube focal spots.