Report on the third and final phase of SNO

The Sudbury Neutrino Observatory was designed to operate in three distinct configurations that made use of different techniques for measuring the rate of the neutral-current disintegration of deuterium by solar neutrinos. In the third of these phases an array of 3He-filled proportional counters was...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 136; no. 2; p. 022002
Main Authors Robertson, R G Hamish, Collaboration, the SNO
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.11.2008
Subjects
Deuterium
Disintegration
Heavy water
Physics
Proportional counters
Solar neutrinos
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Summary:The Sudbury Neutrino Observatory was designed to operate in three distinct configurations that made use of different techniques for measuring the rate of the neutral-current disintegration of deuterium by solar neutrinos. In the third of these phases an array of 3He-filled proportional counters was deployed in the heavy water, and neutrons from the neutrino-induced breakup of deuterium were detected when they captured on 3He, liberating 764 keV of energy in the form of ionization of the gas. Aspects of the analysis of the data from this phase are described, and the results presented. There is good agreement with the results obtained with the other techniques in previous phases, and improved precision on the determination of the solar mixing angle.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/136/2/022002