TREXR: The TREAT Experimental Relational Database

TREXR is an organized, searchable collection of information that describes the hundreds of experiments conducted on nuclear reactor fuels in the Transient Reactor Test (TREAT) facility beginning in 1960. The experiments generally investigated the response of nuclear fuel samples to severe conditions similar to those associated with reactor accidents. The TREAT reactor was specifically designed and operated to provide such conditions. Investigation, understanding, and predictability of the transient response of nuclear fuels is important in supporting the design and licensing of safe nuclear reactors.


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Test Equipment

Browse hardware used in TREAT tests, e.g., capsules, loops.


Programs & Facilities

Browse TREAT experimental programs, partnerships, and reactor facility information.



Browse TREAT test information related to simulation codes by name.