Dr. Steven R. Biegalski is Chair of the Nuclear and Radiological Engineering and Medical Physics Program and Professor in the George W. Woodruff School of Mechanical Engineering at the Georgia Institute of Technology. He is internationally recognized for his expertise in advanced nuclear reactor design, reactor operations, radiation detection and environmental radioactivity, with over three decades of experience developing and deploying advanced systems for radionuclide monitoring, including β-γ coincidence spectrometry and noble gas detection for nuclear forensics and treaty verification. Dr. Biegalski currently serves in leadership roles with the American Nuclear Society (ANS) and the World Council on Isotopes (WCI), where he promotes global collaboration on isotope technology and radiation science. His contributions to nuclear measurement science have been recognized with the 2024 ANS Radiation Science and Technology Award and the 2025 Hevesy Medal, the highest international honor in radioanalytical and nuclear chemistry.