*Neutrino detectors typically weigh many thousands of tons and need to be buried very deep underground, but in today's issue of the journal Nature researchers report they have made a neutrino detector that weighs just a few pounds (not counting the shielding needed to block cosmic rays), and yet it it was able to detect the low energy neutrinos given off by a nuclear reactor that was about 70 feet away, and it can detect all three types of neutrinos, electron, muon and tau neutrinos and their anti-particles too. The researchers say they are confident they can improve the sensitivity of their device in the future, if so I wonder if it could have military applications, such as in detecting nuclear submarines. Their set up needed a shield from cosmic rays that weighed about 10 tons but you could get the same amount of shielding if you just submerged the detector a few feet underwater. And if one detector wasn't sensitive enough it's so light I can't see why you couldn't run several hundred of them in parallel. *
*Direct observation of coherent elastic antineutrino–nucleus scattering* <https://www.nature.com/articles/s41586-025-09322-2.pdf> *John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis>* *a\`* -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/everything-list/CAJPayv2N2_Dz47jwOz82RSvUx-sHJ_NJuk0TtvGZY_NKEYQhzw%40mail.gmail.com.
