SNO+

46°28′30″N 81°12′04″W / 46.475°N 81.201°W / 46.475; -81.201

SNO+ (Sudbury Neutrino Observatory Plus) is a multipurpose underground neutrino detector located approximately 2 km underground in the Vale Creighton Mine at SNOLAB, near Sudbury, Ontario, Canada. It reuses the acrylic vessel and photomultiplier array from the predecessor Sudbury Neutrino Observatory (SNO), replacing heavy water with approximately 780 tonnes of liquid scintillator to enable high-sensitivity measurements of low-energy neutrino interactions. The experiment's primary physics goals include the search for neutrinoless double beta decay of 130
Te, precision studies of solar, reactor, and geo-neutrinos, and supernova neutrino detection. SNO+ completed its liquid scintillator fill and wavelength shifter (PPO) loading in 2022 and has been operating in a physics data-taking phase since that time.

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