FIRST News 10/29/25: FIRST/91±¬ΑΟ builds sensors that can withstand the next generation of nuclear reactors Following two years of testing and development, 91±¬ΑΟ scientists and engineers created a microelectronic sensor that can withstand both the in-core radiation levels and the extreme temperatures that exist within these advanced nuclear reactors. The nanotechnology-based microchip at