Low Energy 8B Solar Neutrinos in SNO+: Controlling and Constraining Radon Backgrounds
Loading...
Authors
Seddighin, Maryam
Date
2013-05-02
Type
thesis
Language
eng
Keyword
8B neutrinos
Alternative Title
Abstract
SNOLAB located in Sudbury, Canada, is hosting a new liquid scintillator experiment
for studying neutrinos which is called SNO+. Many interesting physics topics such as
measuring low energy solar neutrinos and searching for neutrinoless double beta decay
are expected to be performed using the SNO+ detector. SNO+ is designed to measure
the solar neutrino
flux at a lower energy range than SNO, and therefore it is able to
study LMA-MSW oscillations at this range of energy. This research is concerned with
extracting low energy 8B solar neutrinos while studying the tagging and reduction of
214Bi by 99.8%, one of the main backgrounds in the energy range of interest. Ways
to measure and control radon were also studied since it is the source of the 214Bi
background. Scintillation material, zinc sulfide, was selected for use in fabrication of
radon detectors known as Lucas cells. The fabrication of cover gas bags employed in
the SNO+ experiment to react to mine air pressure
fluctuations is described and the
interior radon emanation of these bags was measured and calculated.
Description
Thesis (Master, Physics, Engineering Physics and Astronomy) -- Queen's University, 2013-05-01 20:26:56.981
Citation
Publisher
License
This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.