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A search for time dependence in astrophysical neutrino sources with the Sudbury Neutrino ObservatoryAnthony, Aubra Elan 08 October 2012 (has links)
In this thesis I present the results of a periodicity study on the neutrino data collected over the span of the first two phases of SNO, at both low (1 day⁻¹ - 0.1 yr⁻¹) and high (1 day⁻¹ - 0.1 min⁻¹) frequency ranges. The high frequency study is the first of its kind, and is of particular interest in that it opens a window into the detection of solar g-mode oscillations, which have never been conclusively experimentally verified. In a data set with 7,646 neutrino candidates over a period of 698.29 live days, there was no detected high-frequency periodic signal. In addition to a wide-range, single-peak high-frequency search, I have performed a directed-region frequency analysis, and a noise-motivated broad-band analysis. All searches indicate an absence of periodicity in the 8B solar neutrino signal as measured by SNO. I have also carried out an analysis of time dependence in the context of a trigger-less burst search, with the motivation of either observing neutrinos from an optically occluded supernova, or setting an upper limit on the senstitivity of our detector for such an observation. I include discussions of backgrounds to such a search that are specific to a heavy-water Cherenkov detector such as SNO. / text
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A search for time dependence in astrophysical neutrino sources with the Sudbury Neutrino ObservatoryAnthony, Aubra Elan. January 1900 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2008. / Vita. Includes bibliographical references.
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A search for matter enhanced neutrino oscillations through measurements of day and night solar neutrino fluxes at the Sudbury Neutrino Observatory /Miknaitis, Kathryn Kelly Schaffer. January 2005 (has links)
Thesis (Ph. D.)--University of Washington, 2005. / Vita. Includes bibliographical references (p. 209-222).
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212Pb assay for the determination of the neutral current background at the Sudbury Neutrino Observatory.Laberge, Gaetan (Gaetan Joseph Henri), Carleton University. Dissertation. Physics. January 1995 (has links)
Thesis (M. Sc.)--Carleton University, 1995. / Also available in electronic format on the Internet.
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A Process degasser for the SNO Ultra-pure light water facility.DeKok, Alan (Alan T.), Carleton University. Dissertation. Physics. January 1996 (has links)
Thesis (M. Sc.)--Carleton University, 1996. / Also available in electronic format on the Internet.
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TRIUMF and UBC in the SNO ExperimentMcDonald, Art 06 May 2008 (has links)
No description available.
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Robust Signal Extraction Methods and Monte Carlo Sensitivity Studies for the Sudbury Neutrino Observatory and SNO+ ExperimentsWRIGHT, ALEXANDER 15 September 2009 (has links)
The third and final phase of the Sudbury Neutrino Observatory (SNO)
experiment utilized a series of 3He proportional counters called
Neutral Current Detectors (NCDs) to detect the neutrons produced by
the neutral current interactions of solar neutrinos in the
detector. The number of neutrons detected by the NCDs, and hence the
total flux of 8B solar neutrinos, has been determined using two
novel signal extraction techniques which were designed to be robust
against potential unexpected behaviour in the NCD background. These
techniques yield total 8B solar neutrino flux measurements of
5.04(+0.42-0.40(stat))(+/-0.28(syst))x10E6/cm2/s
and (4.40 - 6.43)x10E6/cm2/s, which are in good agreement
with previous SNO results and with solar model
predictions, and which confirm that previous NCD analyses were not
unduly affected by unexpected background behaviour.
The majority of the hardware from the now-completed SNO experiment
will be reused to create a new liquid scintillator based neutrino
experiment called SNO+. An important part of the SNO+ physics
program will be a search for neutrinoless double beta decay, carried
out by dissolving 150Nd into the scintillator. The sensitivity of
the SNO+ experiment to neutrinoless double beta decay has been
evaluated. If loaded at 0.1% (w/w) with natural neodymium, after
1 kTa of data taking SNO+ would
have a 90%C.L. sensitivity equivalent to a neutrinoless double beta decay half life of 8.0x10E24a or better 50%
of the time; if the experiment were run with neodymium enriched to 50% in 150Nd this
limit improves to 57x10E24a. Under a reasonable choice for the
150Nd neutrinoless double beta decay matrix element, these half lives correspond
to upper limits on the effective Majorana neutrino mass of 112 meV and
42 meV, respectively. These limits are competitive with those expected from all other
near-term neutrinoless double beta decay experiments. / Thesis (Ph.D, Physics, Engineering Physics and Astronomy) -- Queen's University, 2009-09-10 21:07:00.25
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Optical calibration of the Sudbury Neutrino Observatory and determination of the 8B solar nutrino flux in the salt phase /Grant, Darren R. January 1900 (has links)
Thesis (Ph. D.)--Carleton University, 2004. / Includes bibliographical references (p. 159-165). Also available in electronic format on the Internet.
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Studies of a novel method for solar neutrino neutral current detection in the Sudbury neutrino observatory.Paterson, David John, Carleton University. Dissertation. Physics. January 1989 (has links)
Thesis (M. Sc.)--Carleton University, 1989. / Also available in electronic format on the Internet.
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A Monte Carlo study of the Sudbury Neutrino Observatory small test detector experiment.Yeung, Alan B. (Alan Brian), Carleton University. Dissertation. Physics. January 1990 (has links)
Thesis (M. Sc.)--Carleton University, 1990. / Also available in electronic format on the Internet.
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