B Canadian Antineutrino Detector detects Nuclear Power Plants from 240km

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The SNO+ Experiment in Canada has detected antineutrinos from nuclear reactors in Ontario, located 240 km away, as detailed in recent Physics Review Letters. Although SNO+ is still under development, the original SNO experiment has already achieved significant recognition, including a Nobel Prize. This detection method is not unique, as similar work has been done by Kamland and other groups exploring portable devices for nuclear non-proliferation. These advancements aim to enhance monitoring capabilities at nuclear sites, particularly to verify compliance with regulations regarding plutonium breeding. The ongoing research highlights the potential of antineutrino detection in nuclear safety and security.
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The SNO+ Experiment in Canada is still in development, but analysis of early antineutrino detections are believed to be from appear to be the from Ontario reactors 240Km away.
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SNO+ may be in development, but SNO already produced a Nobel. :smile:

This is news, but not new. Kamland has done this, and there are multiple groups looking at more portable devices to do nuclear non-proliferation: drive up to the site boundary and measure whether the core is, e.g. breeding plutonium when it shouldn't be..
 
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Theoretical physicist C.N. Yang died at the age of 103 years on October 18, 2025. He is the Yang in Yang-Mills theory, which he and his collaborators devised in 1953, which is a generic quantum field theory that is used by scientists to study amplitudes (i.e. vector probabilities) that are foundational in all Standard Model processes and most quantum gravity theories. He also won a Nobel prize in 1957 for his work on CP violation. (I didn't see the post in General Discussions at PF on his...

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