av电影网站The Sudbury Neutrino Observatory

av电影网站The Sudbury Neutrino Observatory (SNO) results have providedrevolutionary insight into the properties of neutrinos and the core of thesun. The detector, shown in the artist's conception below, was built 6800feet under ground, in VALE's Creighton minenear Sudbury, Ontario, Canada. SNO was a heavy-water Cherenkov detectordesigned to detect neutrinos produced by fusion reactions in the sun. Itused 1000 tonnes of heavy water loaned fromAtomic Energy of Canada Limited (AECL), and contained by a 12 meter diameteracrylic vessel. Neutrinos reacted with theheavy water (D2O) to produce flashes of light called Cherenkov radiation.This light was then detected by an array of 9600 photomultiplier tubesmounted on a geodesic support structuresurrounding the heavy water vessel. The detector was immersed in light(normal) water within a 30 meter barrel-shapedcavity (the size of a 10 story building!)excavated from Norite rock. Located in the deepest part of the mine, theoverburden of rock shielded the detector from cosmic rays. The detectorlaboratory, still functioning as part of the newSNOLAB facility, is extremely clean toreduce background signals from radioactive elements present in the mine dustwhich would otherwise hide the very weak signal from neutrinos.Plans arecurrently underway to upgrade the SNO detector for the newSNO+ experiment.

The first co-spokesmen for the SNO collaboration when it was established in 1984 were Professor Herb Chen from U California, Irvine and Professor George Ewan, Queen’s University.For interesting accounts of the early development work for the SNO experiment, please see:
"Early Development of the Underground SNO Laboratory in Canada" and"The Funding Campaign for the Sudbury Neutrino Observatory", G.T. Ewan and W.F. Davidson, Physics in Canada, Vol. 61, No. 6 (2005), p. 339-346 and 347-350. (download in PDF format)
For a review article summarizing the three phases of the SNO experiment, please see:
"The Sudbury Neutrino Observatory", Nick Jelley, Arthur B. McDonald, and R.G. Hamish Robertson, Annu. Rev. Nucl. Part. Sci. 2009.59:431-465. (download in PDF format)
Artist Concept of SNO

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In Memoriam: Andre Hamer 1968-2003

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SNO Web Sites at Participating Institutions

Present Status

Also see SNO Milestones for a historyof SNO milestones

The Sudbury Neutrino Observatory Institute (SNOI):

SNO Project Director:

Dr. A.B. McDonald (Queen's University)
The Sudbury Neutrino Observatory Institute

Department of Physics, Stirling Hall,
Queen's University at Kingston,
Kingston, Ontario, Canada
K7L 3N6

av电影网站Tel: (613) 533-2702
Fax: (613) 533-6813

SNO Institute Director:

Dr. Tony Noble (Queen's University)
The Sudbury Neutrino Observatory Institute

Department of Physics, Stirling Hall,
Queen's University at Kingston,
Kingston, Ontario, Canada
K7L 3N6

Tel: (613) 533-2679
Fax: (613) 533-6813

The SNO Site Project Office:

SNO Operations Control Building


VALE Creighton #9 Mine
P.O. Box 159
Lively, Ontario, Canada
P3Y 1M3

Tel: (705) 692-7000
Fax: (705) 692-7001

For general information email: snoinfo@surf.sno.laurentian.ca

URL: https://www.sno.phy.queensu.ca/sno/ (Last revised Nov 9, 2015)
(Mail problems/comments to qusno@sno.phy.queensu.ca)