Sudbury Neutrino Observatory

The Sudbury Neutrino Observatory (SNO) was a <a href="/facts/Neutrino_observatory/LwtyrVAc">neutrino observatory</a> located 2100 m underground in <a href="/facts/Vale_Limited/b8m4SAa2">Vale</a>'s <a href="/facts/Creighton_Mine/X1126G1m">Creighton Mine</a> in <a href="/facts/Greater_Sudbury/IojLaSQn">Sudbury</a>, <a href="/facts/Ontario/HUkxk5Rf">Ontario</a>, Canada. The detector was designed to detect <a href="/facts/Solar_neutrino/IETdGDoj">solar neutrinos</a> through their interactions with a large tank of <a href="/facts/Heavy_water/3dbSrTw5">heavy water</a>.
The detector was turned on in May 1999, and was turned off on 28 November 2006. The SNO collaboration was active for several years after that analyzing the data taken.
The director of the experiment, <a href="/facts/Arthur_B._McDonald/78MDPxJH">Art McDonald</a>, was co-awarded the <a href="/facts/Nobel_Prize_in_Physics/o6w1nCbr">Nobel Prize in Physics</a> in 2015 for the experiment's contribution to the discovery of <a href="/facts/Neutrino_oscillation/c1cc5noc">neutrino oscillation</a>.
The underground laboratory has been enlarged into a permanent facility and now operates multiple experiments as <a href="/facts/SNOLAB/qzyPjIvF">SNOLAB</a>. The SNO equipment itself was being refurbished as of February 2017<a href="https://en.wikipedia.org/w/index.php?title=Sudbury_Neutrino_Observatory&action=edit">[update]</a> for use in the <a href="/facts/SNO%2B/u9bf9o7d">SNO+</a> experiment.

Sudbury Neutrino Observatory open-in-new

Sudbury Neutrino Observatory