Clair J. Sullivan is an Assistant Professor in the Department of Nuclear, Plasma and Radiological Engineering, at the University of Illinois at Urbana-Champaign (UIUC). Her research interests include radiation detection and measurements; gamma-ray spectroscopy; automated isotope identification algorithms; nuclear forensics; nuclear security; nuclear nonproliferation; big data analytics; and sensor networks. She is the Director of Radiation Detection and Isotope Identification research group at UIUC, focused on applications in nuclear security and forensics. She also serves as an Associate Editor of IEEE Transactions on Nuclear Science. She has a decade of experience as both a researcher and practitioner applying her background to the fields of nuclear emergency response, intelligence, and homeland security. She spent seven years at Los Alamos National Laboratory (LANL), three years working for the federal government, and conducted hundreds of measurements of special nuclear material. She also received the 2004 Distinguished Performance Award from LANL, recognizing her for work with the Port Authority New York/New Jersey Police to secure New York City from nuclear terrorism.