| Summary: | 碩士 === 國立臺灣大學 === 物理研究所 === 97 === Dayabay neutrino experiment in Dayabay, China is a high-precision mea-
surement experiment of the reactor anti-electron neutrino flux at Dayabay
to search for neutrino mixing angle θ13. The goal of the Dayabay reac-
tor antineutrino experiment is to determine the unknown mixing angle
θ13 with a sensitivity of 0.01 or better in sin2
2θ13, an order of magnitude
better than the current experimental limit.
The detection mechanism is to detect both positron (prompt) and neu-
tron (delayed) generated from inverse β decay of anti-neutrino. Thus the
understanding of neutron background in Dayabay neutrino experiment
is important. Muon-induced neutron background can be detected in the
Aberdeen neutron detecotr in Aberdeen, Hong Kong. Aberdeen neutron
detector monitors the induced neutron backgound from the cosmic rays
most of which are mouns, nearby or passing through the detector. Ab-
erdeen is nearby Dayabay site and with similar geological composition as
Dayabay site. The neutron flux observed by Aberdeen Experiment would
be a important reference of Dayabay Experiment.
This thesis focuses on the R&D, construction, and optical property of
acrylic vessel of antineutrino detector for Dayabay Experiment. For the
neutron detector of Aberdeen Experiment, the test of generic algorithm for
reconstruction is mainly discussed. It is expected this kind of algorithm
could be one of the reconstruction algorithm for Dayabay antineutrino
detector. This thesis also briefly introduces the recent milestones of both
the Dayabay experiment and Abedeen experiment.
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