Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 620, Issue 2-3, Pages 171-181Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2010.03.100
Keywords
Radioactive calibration sources; Na-24; Rn-222; Solar neutrino; SNO
Categories
Funding
- Atomic Energy of Canada, Ltd. (AECL)
- Science and Technology Facilities Council, United Kingdom
- Natural Sciences and Engineering Research Council, Canada
- National Research Council, Industry Canada
- Northern Ontario Heritage Fund Corporation
- Province of Ontario
- Department of Energy, USA
- Vale INCO
- Agra-Monenco
- Canatom
- Canadian Microelectronics Corporation
- AT&T Microelectronics
- Northern Telecom
- British Nuclear Fuels, Ltd.
- STFC [ST/H000887/2, ST/H001026/1, ST/H001026/2] Funding Source: UKRI
- Science and Technology Facilities Council [ST/H000887/2, ST/H001026/1, ST/H001026/2] Funding Source: researchfish
- Division Of Physics
- Direct For Mathematical & Physical Scien [0903335] Funding Source: National Science Foundation
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The production and analysis of distributed sources of Na-24 and Rn-222 in the Sudbury Neutrino Observatory (SNO) are described. These unique sources provided accurate calibrations of the response to neutrons, produced through photodisintegration of the deuterons in the heavy water target, and to low energy betas and gammas. The application of these sources in determining the neutron detection efficiency and response of the He-3 proportional counter array, and the characteristics of background Cherenkov light from trace amounts of natural radioactivity is described. (C) 2010 Elsevier B.V. All rights reserved.
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