Durable gallium-based transistors could improve reactor monitoring

June 27, 2024, 9:30AMNuclear News
Kyle Reed and Dianne Ezell of ORNL gather data about the performance of a sensor transistor as it is tested against the radiation within the reactor pool behind them at Ohio State University’s Nuclear Reactor Laboratory. (Photo: Michael Huson/The Ohio State University)

Researchers at the Department of Energy’s Oak Ridge National Laboratory want to make the sensors in nuclear power plants more accurate by linking them to electronics that can withstand the intense radiation inside a reactor. Electronics containing transistors made with gallium nitride, a wide-bandgap semiconductor, have been tested in the ionizing radiation environment of space. Now, according to a June 24 article from ORNL, tests carried out in the research reactor at Ohio State University indicate they could withstand neutron bombardment within a nuclear fission reactor.

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