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The Homestake experiment was followed by other experiments with the same purpose, such as Kamiokande in Japan, SAGE in the former Soviet Union, GALLEX in Italy, Super Kamiokande, also in Japan, and SNO (Sudbury Neutrino Observatory) in Ontario, Canada. SNO was the first detector able to detect neutrino oscillation, solving the solar neutrino ...
Short baseline Oscillation Search with Lithium-6 Detector R ν e: ν e + p → e + + n: CC plastic and anorganic scintillator Scintillation: ≈2 MeV Mol, Belgium 2015- STEREO: STErile neutrino REactor Oscillation experiment R ν e: ν e + p → e + + n: CC liquid organic scintillator loaded with Gd Scintillation: ≈2 MeV Grenoble, France 2013 ...
In the late 1960s, Ray Davis and John N. Bahcall's Homestake Experiment was the first to measure the flux of neutrinos from the Sun and detect a deficit. The experiment used a chlorine-based detector. Many subsequent radiochemical and water Cherenkov detectors confirmed the deficit, including the Kamioka Observatory and Sudbury Neutrino ...
A chlorine detector in the former Homestake Mine near Lead, South Dakota, containing 520 short tons (470 metric tons) of fluid, was the first to detect the solar neutrinos, and made the first measurement of the deficit of electron neutrinos from the sun (see Solar neutrino problem).
The first experiment that detected the effects of neutrino oscillation was Ray Davis' Homestake experiment in the late 1960s, in which he observed a deficit in the flux of solar neutrinos with respect to the prediction of the Standard Solar Model, using a chlorine-based detector. [8] This gave rise to the solar neutrino problem.
Diagram showing the Sun's components. The core is where nuclear fusion takes place, creating solar neutrinos. A solar neutrino is a neutrino originating from nuclear fusion in the Sun's core, and is the most common type of neutrino passing through any source observed on Earth at any particular moment.
Thus, such a detector could measure neutrino oscillations directly. A location in Canada was attractive because Atomic Energy of Canada Limited , which maintains large stockpiles of heavy water to support its CANDU reactor power plants, was willing to lend the necessary amount (worth CA$ 330,000,000 at market prices) at no cost.
The project was delayed by funding problems and leaks in the water tank, but by the end of summer 1982 the detector was operating at full capacity. The first results were published in 1982. [ 4 ] In 1987, it gained fame for detecting 8 of the roughly 10 58 neutrinos emitted by Supernova 1987A .
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