• Model Coupled Accelerator Tuning 

  Shelbaya, Olivier (2023-02-27)

  Relativistic charged particle optics in the context of accelerator physics have been treated using transfer matrix methods since the 1950s. The realization that a hyperellipsoidal charged particle distribution could likewise ...
• Improving the Super-Kamiokande 20-inch PMT modelling using the photosensor test facility (PTF) 

  Gousy-Leblanc, Vincent (2023-01-17)

  The Super-Kamiokande (Super-K) experiment is a water Cerenkov neutrino experiment in Japan that won a Nobel prize for discovering neutrino oscillation in 1998. Since then, the neutrino mixing angles and the mass squared ...
• Characterization of Dosimeters for Small Field Applications Including Comparisons to Monte Carlo and Treatment Planning System Computed Doses 

  Timakova, Elena (2023-01-04)

  In radiation therapy, accurately determining the dose to a patient is extremely important for optimal patient outcomes and efficient clinical flow. Under small field conditions, experimental dosimetry is difficult due to ...
• ATLAS New Small Wheel sTGC Pad Efficiency and Signal Strength 

  Brown, Leesa (2022-12-19)

  The New Small Wheel (NSW) is the latest major upgrade of the ATLAS Muon Spectrometer and was installed during LHC Long Shutdown 2 between Runs 2 and 3. The NSW replaced the previous Small Wheels in the inner end-cap ...
• A multifaceted investigation of the resolved properties of galaxy mergers 

  Thorp, Mallory (2022-12-16)

  One promising mechanism to understand the impressive diversity of galaxies observed today, and how galaxies may transition between different populations, is galactic mergers. Interactions between galaxies of comparable ...
• An Exploration of AdS3 Gravity as a Holographic Theory 

  Harvey, William (2022-10-27)

  The holographic principle is a supposed property of quantum gravity which states that the description of a volume of space can be encoded on a lower-dimensional boundary to the region. One such example is that of the ...
• Adding Fuel to the Fire: Investigating Star and Planet Formation through Observations of Episodically Accreting Protostars and Gapped Protoplanetary Disks 

  Francis, Logan (2022-09-23)

  The advent of the Atacama Large Millimeter/sub-millimeter Array (ALMA) has provided a revolutionary depth and clarity to our view of forming stars and planets. With these improved capabilities, observations can provide ...
• The Enhancement of Supermassive Black Hole Accretion Rates in Post-Merger Galaxies from Cosmological Simulations 

  Byrne-Mamahit, Shoshannah (2022-09-02)

  Numerical simulations of galaxy mergers predict that in a merger event, the angular momentum of gas is efficiently drained, leading to gaseous inflows resulting in high central gas densities and bursts of star formation. ...
• The onset and regulation of star formation in the lowest mass dark matter halos 

  Pereira-Wilson, Matthew (2022-09-02)

  We use the APOSTLE suite of cosmological simulations to examine the role of the cosmic ionizing background in regulating star formation (SF) in low-mass LCDM halos. In agreement with earlier work, we find that, after ...
• Topographic Effects on Internal Waves at Barkley Canyon 

  Anstey, Kurtis (2022-08-31)

  Submarine canyons incising the continental shelf and slope are hot spots for topography-internal wave interactions, with elevated dissipation and mixing contributing to regional transport and biological productivity. At ...
• Correcting for Patient Breathing Motion in PET Imaging 

  O'Briain, Teaghan (2022-08-26)

  Positron emission tomography (PET) requires imaging times that last several minutes long. Therefore, when imaging areas that are prone to respiratory motion, blurring effects are often observed. This blurring can impair ...
• Galaxy populations in distant, X-ray selected clusters of galaxies 

  Trudeau, Ariane (2022-08-19)

  Galaxy clusters are the largest gravitationally bound structures in the Universe. Their masses are dominated by dark matter ($\sim$85\% of the mass) with stars representing 1-4\% of their masses. A hot, X-ray emitting gas ...
• Comprehensive Ionization Model Development for the FEBIAD Ion Source and Its Application for TRIUMF’s Radioactive Ion Beam Program 

  Maldonado Millan, Fernando Alejandro (2022-07-28)

  Radioactive isotopes enable advanced medical treatments and the study of nuclear structure, nuclear astrophysics, and fundamental symmetries. TRIUMF, Canada’s Particle Accelerator Centre, generates radioactive isotope ...
• Search for Dark Matter Produced in pp Collisions with the ATLAS Detector 

  MacDonell, Danika (2022-07-18)

  Longstanding evidence from observational astronomy indicates that non-luminous "dark matter" constitutes the majority of all matter in the universe, yet this mysterious form of matter continues to elude experimental ...
• Nanoplasmonics with Dispersive and Lossy Media 

  Peck, Ryan (2022-05-24)

  This thesis focuses on the physics of nanoplasmonic systems for dispersive and lossy media. Gold nanoparticles in P3HT (poly(3-hexylthiophene)) and PMMA (poly(methyl methacrylate)) are analyzed both theoretically and ...
• Advanced wavefront sensing and astrometric techniques for the next generation of extremely large telescopes 

  Taheri, Mojtaba (2022-04-29)

  The new generation of giant ground-based telescopes will see their first light this decade. These state-of-the-art facilities will significantly surpass the resolving power of modern space-based observatories such as the ...
• Simulating the universe: the evolution of the most massive galaxies 

  Rennehan, Douglas (2022-04-19)

  The cores of galaxy clusters contain the most massive galaxies in the Universe, the brightest cluster galaxies. These galaxies are unique compared to their counterpart galaxies outside of clusters as they have much ...
• Solving Navier-Stokes equations in protoplanetary disk using physics-informed neural networks 

  Mao, Shunyuan (2022-01-07)

  We show how physics-informed neural networks can be used to solve compressible \NS equations in protoplanetary disks. While young planets form in protoplanetary disks, because of the limitation of current techniques, direct ...
• Conceptual design of the spin rotator for the SuperKEKB High Energy Ring 

  Peng, Yuhao (2022-01-04)

  This project focuses on the conceptual design of the spin rotator for a proposed electron polarization upgrade of the SuperKEKB. The goal is to achieve the longitudinal electron polarization at the interaction point (IP). ...
• Noise waveform generation using GANs and charged particle identification using pulse shape discrimination in the belle II electromagnetic calorimeter 

  Beaubien, Alexandre (2021-12-23)

  This thesis investigates the use of generative adversarial networks (GANs) as an alternative method to simulate noise waveforms for Belle II CsI(Tl) calorimeter crystals. Presented is a deep convolutional GAN (DCGAN) ...

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