• Suppression of the Efficiency Roll-Off Characteristics in Solution-Processed Lanthanide-based Organic Light-Emitting Diodes 

  Shahalizad Namin, Afshin

  Organic light-emitting diodes (OLEDs) have gained a tremendous amount of interest, due to their applications in display and solid-state lighting technologies. This interest mainly arises from the easy and inexpensive ...

• Studies on Optically Induced DC-Voltage in Thin Film Structures 

  Mirzaee, Somayeh

  Conversion of light into direct current is important for applications ranging from energy conversion to photodetection. However, there are still many challenges to reach high conversion efficiency and broad spectral coverage. ...

• Analysis of Radio Spectral Indices in the CHANG-ES Galaxy Sample 

  Merritt, Alison

  The spectral index of a galaxy provides insight on the processes occurring within the galaxy, and can give hints to how the cosmic ray electrons propagate through the galaxy. Band-to-band spectral index maps provide a ...

• Non-circular flows in HIghMass Galaxies in a Test of the Late Accretion Hypothesis 

  Bisaria, Dhruv

  This thesis investigates the late accretion hypothesis as an explanation for the unusual gas-richness of the HIghMass sample, a collection of 34 galaxies from the recently completed Arecibo Legacy Fast ALFA survey. Accretion ...

• Monte Carlo modelling and optimisation of flattening filters for a novel Co-60 total body irradiation unit 

  Lai, Ingrid

  Total body irradiation (TBI) is used in the treatment of certain types of blood cancers. It involves irradiating the whole body of the patient with high energy x-rays or gamma rays in order to kill cancer cells and suppress ...

• Application and Development of Algebraic Reconstruction Algorithms for High Dose Rate Brachytherapy Gel Dosimetry with Optical Computed Tomography Readout 

  DeVries, David

  Radiation therapy treatment techniques have become more complex to offer optimal tumour control while preserving patient quality of life by avoiding damage to healthy tissue. This increased complexity requires more thorough ...

• Cryogenic Alkali Halide Scintillators for Rare-Event Searches 

  Clark, Michael

  Rare-event searches such as the direct detection of dark matter require very low backgrounds, as well as large volumes of material because of the low rate of signal. Scintillators are an excellent particle detector candidate ...

• Phenomenological Studies and Analysis Techniques to Search for Light Dark Matter With NEWS-G 

  Durnford, Daniel

  The NEWS-G collaboration uses gas-filled Spherical Proportional Counters (SPCs) to search for low-mass dark matter. As one of several competing collaborations pushing the low-energy frontier of particle detection technology, ...

• A Numerical Investigation of the Impact of Inclinations on the Estimates of Photometric and Dynamical Properties of Galaxies 

  Arora, Nikhil

  We exploit N-body simulations (GalactICS, Illustris, NIHAO) to study the impact of inclination on the estimates on various photometric and spectroscopic quantities of galaxies such as sizes, surface brightnesses, stellar ...

• Corrections to Signal Saturation on the DEAP-3600 Dark Matter Search 

  McLaughlin, Joseph

  Dark matter is currently a topic at the frontier of astroparticle physics research. Its discovery or refutation would have profound implications for particle physics, cosmology, and astrophysics. There are numerous experiments ...

• The Quenching of Cluster Galaxies 

  Wagner, Cory

  In this thesis we present two projects investigating the evolution and quenching of cluster galaxy star formation (SF) activity. Leveraging a sample of 36 galaxy clusters, we measure the level of member SF activity. Over ...

• Measurement of Cosmogenic Production Rates in Ge with CDMSlite 

  Fascione, Eleanor

  The majority of matter in the Universe is non-luminous, non-baryonic, and as of yet undiscovered. The SuperCDMS experiment searches for this "dark matter" in the form of Weakly Interacting Massive Particles (WIMPs), operating ...

• From Surface Events in DEAP-3600 to the Radial Acceleration Relation in Spiral Galaxies 

  Stone, Connor

  One of the most outstanding mysteries in the Universe is the nature of dark matter. In this thesis, two unique projects that focus on understanding dark matter are presented. First, Machine Learning is used to detect ...

• The Scatter Dependence of the Spatially-Resolved Star Formation Main Sequence Relation 

  Hall, Christine

  The scatter of the spatially-resolved star formation main sequence (SFMS) is investigated in order to reveal signatures about processes of galaxy formation and evolution. We have assembled a sample of 355 nearby galaxies ...

• Riding the waves: The formation and evolution of vertical bending waves in Milky Way-like disc galaxies 

  Chequers, Matthew

  In this thesis we study the dynamics of vertical (bending) waves in Milky Way-like disc galaxies. The main goals of the thesis are to form a coherent picture for the formation and evolution of bending waves using ...

• Inline Temperature Imaging: A Non-contact Temperature Measurement Technique for Laser Processing 

  Nestor, Stephen

  Laser keyhole welding and laser additive manufacturing are high intensity laser based advanced manufacturing techniques that offer numerous advantages over more traditional processes. However, because of the extreme spatial ...

• Simulations of the Muon Veto and Background Expectations for the PICO500 Dark Matter Experiment 

  Olson, Sarah

  PICO500 is an upcoming dark matter experiment searching for Weakly Interacting Massive Particle (WIMP) dark matter. The experiment is a 500L bubble chamber and is currently in the design phase. This thesis presents simulations ...

• Self-Organization and Light-Induced Chirality in Azo-Glass Material 

  Mazaheri, Leila

  Azobenzene derivatives have been subject to many studies in the field of all-optical surface patterning due to their unique photoresponsive properties. Photoinduced mass movement of azobenzene enables inscription of surface ...

• Characterization Of Large Area Avalanche Photodiodes For The Measurement Of The Electron Capture Decay Of 40K To The Ground State Of 40Ar 

  Stukel, Matthew

  The branching ratio of the direct decay of 40K to the ground state of 40Ar through electron capture has never been experimentally measured. This rate has been shown to be vital in constraining the DAMA/LIBRA (DArk MAtter/Large ...

• The Andromeda Optical and Infrared Disk Survey 

  Sick, Jonathan

  The spectral energy distributions of galaxies inform us about a galaxy’s stellar populations and interstellar medium, revealing stories of galaxy formation and evolution. How we interpret this light depends in part on our ...

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