What is SLAC Ultrafast Copper Melting Discovery?

SLAC Ultrafast Copper Melting Discovery is an ultrafast diagnostic technique in which femtosecond x-ray or electron pulses probe a metal sample driven beyond its equilibrium melting point, capturing the atomic-scale dynamics of a superheated solid-to-liquid transition. Within fusion and advanced nuclear materials science, this class of measurement is used to study how conductive metals such as copper respond to the extreme, rapid heat pulses experienced by plasma-facing and reactor-wall components.