David A. Jaffray is a Canadian medical physicist and Senior Scientist in the Division of Biophysics and Bioimaging at the Ontario Cancer Institute.
He is also a professor and Vice Chair in the University of Toronto's Department of Radiation Oncology.
He is the inventor, together with John Wong and Jeffrey Siewerdsen, of on-line volumetric kv-imaging guidance system for radiation therapy.
[1] On 21 May 2019, the University of Texas MD Anderson Cancer Center announced that Jaffray would be joining the institution as its "first chief technology and digital officer".
"Cone-beam computed tomography with a flat-panel imager: Initial performance characterization".