L. Dean Chapman

Dr. L. Dean Chapman serves as a Professor in the Department of Anatomy, Physiology and Pharmacology at the University of Saskatchewan, Canada. He conducts pioneering research at the Canadian Light Source synchrotron facility, specializing in advanced X-ray imaging techniques for biomedical applications.

His academic credentials include:

• Ph.D. in Physics from Purdue University (1981)
• B.Sc. in Physics from Southwestern Oklahoma State University (1975)

Dr. Chapman pioneered Diffraction Enhanced Imaging (DEI), a revolutionary technique that exploits X-ray refraction and scattering to achieve up to 33 times greater soft tissue contrast than conventional radiography in breast imaging. His research encompasses:

• Fundamental modeling of DEI contrast mechanisms (absorption, refraction, scattering)
• Development of laboratory DEI systems for clinical translation
• Integration of DEI with computed tomography and K-edge subtraction imaging
• Innovative X-ray optics including bent Laue crystals for fluorescence EXAFS

Analysis of his 15 most recent publications (2020-2024) reveals dual research trajectories: continued innovation in synchrotron-based biomedical imaging (bone microstructure, cartilage studies, contrast agents) and emerging work in silicon photonics for 800+ Gbps optical communications. The biomedical studies predominantly address diagnostic challenges in osteoarthritis and cancer detection.

He leads research at the Biomedical Imaging and Therapy (BMIT) beamlines of the Canadian Light Source, collaborating with interdisciplinary teams to develop next-generation imaging instrumentation. His laboratory focuses on translating synchrotron techniques to preclinical applications and potential clinical deployment.