The calibration of the Sudbury Neutrino Observatory using uniformly distributed radioactive sources

The Sudbury Neutrino Observatory

The Sudbury Neutrino Observatory is a second-generation water Cherenkov detector designed to determine whether the currently observed solar neutrino de"cit is a result of neutrino oscillations. The detector is unique in its use of D 2 O as a detection medium, permitting it to make a solar model-independent test of the neutrino oscillation hypothesis by comparison of the chargedand neutral-curre...

Neutrino Observations from the Sudbury Neutrino Observatory

a The first neutrino observations from the Sudbury Neutrino Observatory are presented from preliminary analyses. Based on energy, direction and location, the data in the region of interest appear to be dominated by 8 B solar neutrinos, detected by the charged current reaction on deuterium and elastic scattering from electrons, with very little background. Measurements of radioactive backgrounds...

Sudbury Neutrino Observatory Results

A. B. McDonald Physics Department Queen's University Kingston, Ontario CANADA K7L 3N6 For the SNO Collaboration e-mail [email protected] Abstract The Sudbury Neutrino Observatory uses 1000 tonnes of heavy water in an ultraclean Cherenkov detector situated 2 km underground in Ontario, Canada to study neutrinos from the Sun and other astrophysical sources. The Charged Current (CC) reaction on deuteri...

Recent Results from the Sudbury Neutrino Observatory

The Sudbury Neutrino Observatory (SNO) measures both the flux of the electron-type neutrinos and the total flux of all active flavours of neutrinos originating from the Sun. A model-independent test of neutrino flavour transformation was performed by comparing these two measurements. In 2002, this flavour transformation was definitively demonstrated. In this talk, results from these measurement...

Light concentrators for the Sudbury Neutrino Observatory