Advanced US nuclear detector takes first beam to aid national security

Advanced US nuclear detector takes first beam to aid national security

A next-generation nuclear detection system that could aid US national security efforts has logged its first operational measurements in Michigan. The Gamma-Ray Energy Tracking Array, known as GRETA, recently completed its initial characterization run at Michigan State University. Located at the Facility for Rare Isotope Beams (FRIB), the instrument met all primary performance targets during early beam testing. Physicists designed GRETA to map su…