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NEW: U.S. and Japan Perform First Fast Reactor Fuel Safety Test of 21st Century

Department of Energy's Office of Nuclear Energy sent this bulletin at 03/12/2025 02:41 PM EDT

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March 12, 2025

U.S. and Japan Perform First Fast Reactor Fuel Safety Test of 21st Century

Test capsule in a hot cell at Idaho National Laboratory's Transient Reactor Test facility.

Idaho National Laboratory has conducted the world's first safety test on a high-burnup fast reactor fuel in more than 20 years at its Transient Reactor Test facility.

Researchers performed transient tests on a high-burnup metallic fuel that was archived from historic irradiation testing at the lab’s EBR-II reactor.

The testing is part of a collaboration between the U.S. Department of Energy and the Japan Atomic Energy Agency to develop and qualify fuels for fast reactors.

The safety tests are the first of their kind in the world in more than two decades and will provide crucial new data to support future fuel development and qualification.

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