Dr. Christiana Subaar is a lecturer in the Physics department at KNUST, with a background in Medical Physics. She holds a Ph.D. in Health and Radiation Physics, an M.Phil. in Medical Physics, and a B.Sc. degree in Applied Physics. With over 10 years of teaching experience, Dr. Subaar's research focuses on radiation safety and pathophysiology, particularly in Magnetic Resonance Imaging, Radiation Dosimetry, and Radiation Therapy. Her current research aims to optimize pediatric radiation doses in CT and digital radiography examinations in Ghana, striving to produce well-rounded graduates and contribute to the field of Medical Physics.