معرفی
Dr. Paul Johns is a Distinguished Research Professor in the Department of Physics at Carleton University, affiliated with the Ottawa Medical Physics Institute (OMPI). His research focuses on innovative medical x-ray imaging techniques, including x-ray scatter imaging, dual-energy radiography, and focal spot mapping. He holds academic distinctions such as Fellowships from the Canadian College of Physicists in Medicine and the Canadian Organization of Medical Physicists, and received the Sylvia Fedoruk Prize in Medical Physics.
Johns' career spans roles at AECL Power Projects, Ottawa Civic Hospital, and Carleton University since 1988. He previously chaired the Canadian Organization of Medical Physicists (1996-1998) and led Carleton's Physics Department as Chair (2005-2008). His research emphasizes leveraging x-ray wave behavior to enhance diagnostic capabilities while minimizing patient exposure. Key projects include developing scatter-based imaging systems and measuring x-ray scattering cross sections for tissues and materials.
Publications highlight advancements in synchrotron-based scatter imaging, energy-dispersive form factor measurements, and multi-beam imaging systems. His work bridges fundamental physics and clinical applications, contributing to non-destructive testing and security screening beyond medicine. Active collaborations include the Canadian Light Source for synchrotron experiments.
