Transient Reactor Test Facility

(Graphite Moderated Reactor)


Graphite Moderated Reactor
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What is Transient Reactor Test Facility?

The Transient Reactor Test Facility (TREAT) is an air-cooled, graphite moderated, thermal spectrum test nuclear reactor designed to test reactor fuels and structural materials. Constructed in 1958, and operated from 1959 until 1994, TREAT was built to conduct transient reactor tests where the test material is subjected to neutron pulses that can simulate conditions ranging from mild transients to reactor accidents. TREAT was designed by Argonne National Laboratory, and is located at the Idaho National Laboratory. Since original construction, the facility had additions or systems upgrades in 1963, 1972, 1982, and 1988. The 1988 addition was extensive, and included upgrades of most of the instrumentation and control systems. The U.S. Department of Energy (DOE) has decided to resume a program of transient testing, and plans to invest about $75 million to restart the TREAT facility by 2018. The renewed interest in TREAT was sparked by the 2011 Fukushima Daiichi nuclear disaster, which prompted the shutdown of Japan's and Germany's nuclear plants. One use for TREAT is planned to be testing of new accident-tolerant fuel for nuclear reactors. TREAT was successfully restarted in November 2017.

Technology Types

graphite moderated reactornuclear research reactor


Transient Reactor Test Facility

Tech Info

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 — Date merged: 11/6/2021, 1:33:00 PM
 — Date scraped: 5/20/2021, 6:01:44 PM