Solar Neutrino Observatory

Fig. 5.3. Solar neutrino spectrum and detection ranges of the various underground neutrino observatories. The main part of the emission comes from the proton-proton reaction. About 3000 bilhon neutrinos pass through this figure every second. These neutrinos left the Sun eight minutes and two seconds earlier.

During the 10-year period in which the data in Tables V and VI were acquired, the electronic solar neutrino experiment in the Sudbury Neutrino Observatory (SNO) in Canada was completed and began data taking. The heart of SNO is a transparent acryclic sphere holding 1000 tons of heavy (deuterated) water with which to observe the reaction initiated by Ve from the in the sun. 

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