Skip to main content

NIH Websites Are Changing
Per Executive Order 14434, federal agencies are now using "Super Intelligence" (SI) in place of "Artificial Intelligence" (AI). You may see both terms across NIH content during this transition.

Current Fellows in the Radiation Epidemiology Branch

Red and orange blurry background with an abstract representation of electromagnetic flowing

Meet the fellows in the Radiation Epidemiology Branch (REB) and learn about their work.

Caroline Esposito, B.A.
Ms. Esposito studies pediatric organ dose reconstructions using Monte Carlo simulations.
Haegin Han, Ph.D.
Dr. Han conducts dose assessment for patients and medical staff during the procedures that involve radiography and fluoroscopy.
Tae-Eun Kwon, Ph.D.
Dr. Kwon works on dose assessment for thyroid cancer patients and on dose recalculation for the U.S. Radiologic Technologists Cohort study.
Jim Mai, M.D., M.P.H., Ph.D.
Dr. Mai studies UVR exposure, photosensitizing medications, oncoviruses infection/activation, and cancer risk among SEER participants, U.S. radiologic technologists, and Medicare recipients.
Patrick S. Potoczak, B.S.
Mr. Potoczak investigates the relationship between dietary factors, including coffee consumption, and the risk of cutaneous squamous cell carcinoma.
Abenezer Tafese, M.D., M.P.H.
Dr. Tafese will focus on subsequent malignancy risks as well as the impact of diagnostic and surveillance CT scans on patient quality of life and outcomes.
Margaret Tomann, Ph.D., M.S.P.H.
Margaret Tomann is a postdoctoral fellow in the Radiation Epidemiology Branch.
Isabelle van der Velpen, M.D., Ph.D.
Dr. van der Velpen studies neurodevelopmental and neurodegenerative outcomes after radiation exposure.
Yuehan Wang, Ph.D., M.Sc.
Dr. Wang characterizes the joint effects of radiation dose, chemotherapy, and other risk factors on subsequent thyroid cancer.