Antineutrino Detection Could Help Remotely Monitor Nuclear Reactors
Arthur T Knackerbracket has found the following story:
Technology to measure the flow of subatomic particles known as antineutrinos from nuclear reactors could allow continuous remote monitoring designed to detect fueling changes that might indicate the diversion of nuclear materials. The monitoring could be done from outside the reactor vessel, and the technology may be sensitive enough to detect substitution of a single fuel assembly.
The technique, which could be used with existing pressurized water reactors as well as future designs expected to require less frequent refueling, could supplement other monitoring techniques, including the presence of human inspectors. The potential utility of the above-ground antineutrino monitoring technique for current and future reactors was confirmed through extensive simulations done by researchers at the Georgia Institute of Technology.
"Antineutrino detectors offer a solution for continuous, real-time verification of what is going on within a nuclear reactor without actually having to be in the reactor core," said Anna Erickson, associate professor in Georgia Tech's George W. Woodruff School of Mechanical Engineering. "You cannot shield antineutrinos, so if the state running a reactor decides to use it for nefarious purposes, they can't prevent us from seeing that there was a change in reactor operations."
Employing antineutrino detectors to safeguard future nuclear reactors from diversions (open, DOI: 10.1038/s41467-019-11434-z) (DX)
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