b'1959 Transient Reactor Test FacilityOriginally designed as part of the safety program for fast breeder reactors, the Transient Reactor Test (TREAT) Facility is a reactor designed to produce short, controlled bursts of nuclear energy to simulate accident conditions leading to fuel damage. This can include melting or even vaporizing test specimens while leaving the reactors driver fuel undamaged. The data helps refine computer simulations of reactor accidents and contributes to the design of safer reactors and fuels. Many of the nuclear fuel types currently used in reactors operating in the United States and around the world were tested in TREAT, which was put on operational standby in 1994 before being restarted in 2017. 25'