Choonsik Lee

Choonsik Lee is a senior investigator in the Radiation Epidemiology Branch at the National Cancer Institute, part of the National Institutes of Health in Rockville, Maryland. His research focuses on computational radiation dosimetry, with an emphasis on developing human anatomical phantom libraries and tools to estimate organ doses from medical imaging and radiation therapy. Through the NCI Dose Tools suite, he contributes to methods for dose assessment in computed tomography, nuclear medicine, and radiography and fluoroscopy, supporting epidemiological research on radiation exposure and cancer risk. Lee earned his Ph.D. in health physics from Hanyang University in South Korea and has contributed to the development of computational methods for medical radiation research throughout his career.