Experts suspect that North Korea’s recent nuclear explosive test was different from the previous two. Michigan Engineering Professor Sara Pozzi explains how air samples could reveal whether the bomb was uranium- or plutonium-based and why a uranium-based weapon would be cause for alarm.
ABOUT THE PROFESSOR: Sara Pozzi is an Associate Professor of Nuclear Engineering and Radiological Sciences at the University of Michigan College of Engineering. Her Detection for Nuclear Nonproliferation Group develops detectors that spot materials that can be made into nuclear weapons, such as uranium and plutonium. In the future, such detectors could be used to scan luggage and cargo to intercept illicit nuclear arms.