Per Andreas Enqvist Per Andreas Enqvist, Ph.D., is an associate professor in the Department of Materials Science and Engineering at the University of Florida. Dr. Enqvist earned his Ph.D. in nuclear engineering at Chalmers, University of Technology, Sweden. His research interests include nuclear safeguards, detection statistics of radiation from fissile materials, physics behind particle-detector interactions, data fusion, and radiation detection algorithms. Technologies Portal Imaging System for Cancer Patients Undergoing Particle Beam Therapy 3D Vision-Enhanced Radiation Sensor to Detect and Track Nuclear Threats