Tiezhi Zhang, PhD

Assistant Professor of Radiation Oncology

Dr. Zhang’s primary research interests include the development of multi-pixel x-ray source, tetrahedron x-ray imaging systems based on scanning x-ray sources. Almost all modern x-ray imaging systems including x-ray radiography, fluoroscopy, mammography and cone beam CT, to name only a few, utilize a single x-ray source and a 2D detector to acquire 2D images. Dr. Zhang’s lab develops new linear scan x-ray sources and tetrahedron beam imaging systems that can overcome the problems in traditional x-ray imaging, including excessive x-ray scattering, suboptimal detector performance and limited detector dimension. The novel imaging system may find important uses in many medical procedures such as image guided radiotherapy (IGRT), image guided intervention, and office-based point-of-care diagnostic imaging. Besides x-ray imaging, Dr. Zhang’s lab also develops novel technologies for precise radiation (x-ray and proton) treatment of cancers.