Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"antineutrinos"”.
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Observation of Reactor Antineutrinos with the CHANDLER Detector
… we search for short baseline oscillations using antineutrinos from nuclear reactors. We have developed a reactor antineutrino detection technology based on solid plastic scintillator, called CHANDLER, which could be used to search for short baseline reactor antineutrino oscillations. An 80 kg …
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Detection of Antineutrinos at the North Anna Nuclear Generating Station
Nuclear reactors have played an essential role in developing our current understanding of neutrinos. The precision measurement of these high-flux, pure-flavor and controllable artificial neutrino sources shed lights on a wide range of fundamental questions in physics. Specifically, the Reactor …
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Reactor Antineutrinos In The Sno+ Water Phase And Detector R&d For Large-Scale Neutrino Detectors
… the first ever significant detection of reactor antineutrinos in a water Cherenkov detector. The second topic in this thesis focuses on R&D effort relevant for current and future large-scale neutrino detectors, such as SNO+, KamLAND-Zen, JUNO, and THEIA. Detectors hoping to observe low-energy …
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Measurement of neutrino mixing angle Θ13 in the Daya Bay Reactor Neutrino Experiment
… a sensitivity of 0.01 or better by detecting antineutrinos from nuclear reactors with multiple identically designed detectors at different baselines. Antineutrinos were identified by inverse beta decay $\bar{\nu}_{e} + p \rightarrow e^{+} + n$ in 20~tons of Gadolinium-doped liquid scintillator …
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Testing of GdCl3 Doping in Water Cherenkov Antineutrino Detectors
… use of gadolinium loaded water to detect reactor antineutrinos.
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Precision Search for Muon Antineutrino Disappearance Oscillations Using a Dual Baseline Technique
… neutrino models. The two detectors observe muon antineutrinos from the same beam, therefore the combined analysis of their data sets serves to partially constrain some of the flux and cross section uncertainties. A likelihood ratio method was used to set a 90% confidence level upper limit on muon …
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Corrections to and Applications of the Antineutrino Spectrum Generated by Nuclear Reactors
… chapter, Chapter [2], will specifically cover antineutrinos as generated in nuclear reactors. In this chapter, the production and detection methods of reactor neutrinos are introduced as well as a discussion of the theories behind determining the antineutrino spectrum. The mathematical …
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A NEW MEASUREMENT OF THE NEUTRON MULTIPLICITY EMITTED IN 252Cf SPONTANEOUS FISSION
… to probe short baseline oscillations of electron antineutrinos in search of eV-scale sterile neutrinos and precisely measure the 235U reactor antineutrino spectrum from the High Flux Isotope Reactor (HFIR) at Oak Ridge national Laboratory (ORNL). The PROSPECT antineutrino detector (AD) provided …
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Properties of LEDs for the Calibration of PMTs for the Daya Bay Project
… muons, resulting in accurate detection of antineutrinos from the source. To ensure accurate detection, we must effectively calibrate the PMTs with the use of carefully chosen and calibrated LEDs. This thesis details the study of several LEDs measured in an attempt to determine the …
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Precise measurement of mixing parameters and sterile neutrino search at Daya Bay
… of 8-AD data were analyzed. The reactor electron antineutrinos ν_e were observed via the inverse beta decay reaction, v_e + p → (e^+) + n. The v_e events were selected by the delayed coincidence between the (e^+) signal and the neutron capture occurring on average 30 μs later. The data quality was …
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The search for majoron emission in xenon-136 and two-neutrino double-beta decay of xenon-134 with the Enriched Xenon Observatory
… mass scale, establish that neutrinos and antineutrinos are indistinguishable, and that the particle physics conservation law of total lepton number is violated in nature. The latter two consequences are particularly salient, as they lead to potential explanations of neutrino mass …
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Analysis of an Antineutrino Detector
… detector, called CHANDLER. CHANDLER detects antineutrinos through inverse beta decay (IBD), using a highly segmented array of plastic scintillator segments to identify the positron through topology, and sheets of lithium-doped zinc sulfide to cleanly distinguish the neutron using pulse shape …
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The Daya Bay Reactor Neutrino Experiment
… by measuring disappearance of reactor antineutrinos emitted from six 2.9 $GW_{th}$ reactors at the Daya Bay Nuclear Power Station. There are eight identical Gd-loaded liquid scintillator detectors deployed in two near (flux-weighted baseline 512 $m$ and 561 $m$) and one far (1579 $m$) …
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Precision Background Stability and Response Calibration in Borexino: Prospects for Wideband, Precision Solar Neutrino Spectroscopy and BSM Neutrino Oscillometry Through a Deeper Detector Understanding
… behavior in low L/E electron-neutrinos and antineutrinos. Investigating the feasibility and optimization of producing such a large amount of ⁵¹Cr for the source, by irradiating chromium material in a high-flux reactor, required extensive simulative work with the MCNP-5 neutronics code. With …
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Neutron Measurements and Reactor Antineutrino Search with the SNO+ Detector in the Water Phase
The SNO+ experiment is a large-scale liquid scintillator neutrino experiment with a wide range of physics objectives. SNO+ has adopted a staged approach where the detector was first filled with ultra-pure water before substituting with liquid scintillator and the target isotope $^{130}$Te for …
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Searching for Reactor Antineutrino Flavor Oscillations with the Double Chooz Far Detector
This dissertation presents results from a search for reactor antineutrinoₑ flavor oscillations using the Double Chooz Far Detector. The search was performed by observing the rate and energy spectrum of antineutrinoₑ interacting via Inverse Beta Decay in a Gd-doped liquid scintillator detector, and …
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Geoneutrino production of the northern Black Hills, South Dakota, United States of America
Current neutrino observatories operate underground to isolate the detector from cosmic rays and background radiation. However, background radiation from local sources has yet to be accounted for. Current models for neutrino contributions from terrestrial rocks are formulated from bulk compositional …