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James Baker (SnoLab Student)17/08/2023, 09:15
The SNO+ detector is located 2km underground in Sudbury, Ontario. The primary purpose of the experiment is to study extremely rare neutrinoless double beta decay using Te-130 as the double beta decay isotope. Te-130 was chosen due to it’s high natural abundance and high energy double beta decay end point. The detector will be initially loaded with 0.5% Tellurium which corresponds to 4 tons of...
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James Smith17/08/2023, 09:30
The SNO+ detector is a multi-tonne liquid scintillator neutrino detector located 2000 m underground near Sudbury, Ontario. In order to search for the proposed neutrinoless double beta decay (0νββ), the SNO+ scintillator cocktail will be loaded with tellurium-130. The 130Te will come from telluric acid, which is synthesized with butanediol before being added to the scintillator. The detector is...
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William Paty17/08/2023, 09:45
The Event Horizon Telescope image of the photon ring around M87*, a black hole, captivated the world, and this achievement was named Breakthrough of the Year by Science Magazine in 2019. How could we use these photon rings to detect primordial black holes? Since light can orbit around a black hole, instead of looking for black holes through gravitational lensing events, in which we can only...
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Ashley Ferreira (TRIUMF (CA))17/08/2023, 10:00
The ALPHA-g experiment at CERN aims to perform the first-ever direct measurement of the effect of gravity on antimatter, determining its weight to within 1% precision. At TRIUMF, we are working on a new deep learning method based on the PointNet architecture to predict the height at which the antihydrogen atoms annihilate in the detector. This approach aims to improve upon the accuracy,...
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Ana Carla Molina Colina17/08/2023, 10:15
The SNO+ detector is located at SNOLAB 2km underground in Sudbury, Ontario. SNO+ is a large multipurpose detector looking for an extremely rare and proposed neutrino-less double beta decay, if observed will determine the Majorana nature of neutrinos. Therefore, backgrounds that may obscure the data are consistently monitored. Being underground prevents backgrounds from the cosmic flux,...
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Branden Aitken17/08/2023, 11:15
The MATHUSLA (MAssive Timing Hodoscope for Ultra-Stable neutraL pArticles) project is devoted to studying exotic, long-lived particle that, if found, could help answer many Beyond the Standard Model questions including dark matter interactions and the baryon asymmetry. MATHUSLA is a highly modular detector with a straightforward design. At UVIC, there is ongoing work to make a prototype which...
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Mithun Vanniasinghe (University of Toronto)17/08/2023, 11:30
See abstract attached as PDF.
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Mark Volin (SNOLAB, Universidad Iberoamericana)17/08/2023, 11:45
The necessity to account for backgrounds is a well known issue for any feasible Dark Matter detection experiment. One of the major sources of backgrounds is the emission of alpha particles associated with the decay of small amounts of radioactive isotopes present in the experiment.
Due to the quantum nature of radioactive decay, it is impossible to develop a deterministic model for the...
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Dhruval Shah (University of Regina)17/08/2023, 12:00
Studies of short-lived radioactive isotopes, at the limits of nuclear binding (the ``drip lines"), are crucial for understanding how the nuclear force evolves toward the extremes. In neutron-deficient nuclei, measurements of $\beta$-delayed proton emission, can be used to constrain proton-capture reaction pathways in nucleosynthesis and test isospin symmetry. In this talk, I will present my...
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Kristofer Karam (Université de Montréal)17/08/2023, 15:30
The nEXO experiment aims to search for neutrinoless double beta decay in liquid 136Xe. It uses an inner detector, consisting of a time projection chamber, contained within an outer detector. The outer detector, filled with D2O and lined with photomultiplier tubes, shields the experiment passively by stopping cosmic backgrounds in the heavy water and actively by detecting the Cherenkov...
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Zachariah Charlesworth17/08/2023, 15:45
LoLX1 is a small light sensing detector using SiPMs and Liquid Xenon. A small drawback of SiPMs is that they occasionally emit secondary photons outward from their sensing surface -- these photons can trigger other SiPMs in the detector and this process is known as external cross talk. In order for larger, SiPM using, experiments to have better energy resolution, external cross talk must be studied.
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Maggie Oxford17/08/2023, 16:00
The Sudbury Neutrino Observatory was home to the SNO experiment that hunted for solar neutrinos. In 2015 a Canadian scientist was co-awarded the Nobel Prize in Physics for the discoveries made by this project, and such a legacy of Canadian science should have a dedicated website. To offer an accessible website describing the SNO experiment and the science of SNO, a new website is being built...
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David Drobner (Queen's University)17/08/2023, 16:15
In recent years, it has become increasingly difficult to find detector operators
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among members of the SNO+ collaboration due to the time consuming and
monotonous nature of this necessary work. Hence, we aim to replace the bulk
of day-to-day detector operation with a new tool named ’Roboshifter’. There
are many interesting challenges when transitioning a large and long-standing
experiment... -
Aditya Chugh (University of Toronto)18/08/2023, 09:00
Dark matter (DM) comprises of nearly 80% of the mass of the universe, yet its exact nature eludes us. Specifically, the Dark Photon (DP) is a well-motivated candidate for DM, and offers a relatively simple extension to Standard Model (SM) physics. Dark photons act as a portal between SM and DM particles via kinetic mixing, thus oscillating into photons (and vice-versa) while propagating. For...
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Myla Weiman18/08/2023, 09:15
The SNO+ experiment consists of a detector filled with liquid scintillator, which creates light when particles pass through it. To increase the light yield, a second wavelength shifter, bis-MSB, is added to the scintillator. I will be going through the steps in achieving the deployment of the first batch of bis-MSB. I will also be talking about the process of developing a method to measure...
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Drake Wickman18/08/2023, 09:30
Argon and krypton gas was enriched using cryogenic distillation. The goal is to measure the
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HETP (height equivalent theoretical plate) for krypton gas based on the data that was collected to
see if it is the same as it is for argon. If it is, then from there the VPIE (vapour pressure isotopic
effect) can be extrapolated by assuming that the HETP is constant for all noble gases. -
Maxwell Bridgewater18/08/2023, 09:45
The Health Canada CTBT detector has the potential to improve the sensitivity of the low background gamma ray counting facility at SNOLAB. Since the CTBT detector is a dual detector design it is possible to observe gamma coincidence events in the detector. These events are significant as they offer the chance to lower the background noise floor in the detector by excluding events that fell...
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Yusuf Ahmed (SNOLAB)18/08/2023, 10:00
Radon is a problematic radioactive inert gas to the highly sensitive detectors at SNOLAB. In attempts to improve our Radon trapping efficiency from samples of gases, a charcoal based trap was developed at SNOLAB. Radon binds to charcoal via the Van der Waals forces, a process that is made more prominent at cryogenic temperatures. Extraction and the determination of the amount of trapped Radon...
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Tatum Soward (SNO Lab)18/08/2023, 10:15
SNOLAB’s Background Survey Improvement Project aims to update and improve the measurement of the background neutron flux in the underground lab from the results presented in the SNOLAB Technical Reference Manual (Duncan et al., 2016). The project uses Bubble Detector Spectrometers (BDS) manufactured by Bubble Technology Industries (BTI) which uses an unfolding algorithm to calculate the...
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Katherine Latosinsky18/08/2023, 11:00
In the Cube Hall at SNOLAB there are ten zirconium oxide-based sensors that monitor for oxygen deficiency hazards in case of an inert gas leak from the NEWS-G or DEAP-3600 experiments. While important for safety, these sensors occasionally fail, which can disrupt research by triggering a false alarm and evacuation of the Cube Hall. In this presentation I detail my analysis of historic oxygen...
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Victoria Howard (SNO+)18/08/2023, 11:15
SNO+ is a liquid organic scintillator detector aiming to study neutrinos. It is now completely full of scintillator with the addition of wavelength shifter having been completed. Within SNO+, there are events that have been dubbed “neck events”. These events have been named as such because they occur around the neck of the detector and have a characteristic appearance. The neck and bottom...
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Lauren Fearn18/08/2023, 11:30
In highly sensitive experiments searching for dark matter, monitoring and reducing background radiation levels is essential. Radon (Rn) is a radioactive noble gas, which can diffuse into experiments, leaving its daughters inside the detector to decay. From the U chain, 222Rn has a half-life of 3.8 days. Some long-lived daughters, like 210Pb will pollute detectors for long periods of time. Most...
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Keegan Paleshi (Laurentian University)18/08/2023, 11:45
This is a new assay technique that is being developed and characterized for future use on scintillator within the SNO+ experiment.
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Sam Paudel (University of Toronto)18/08/2023, 12:00
The SuperCDMS experiment is a direct detection dark matter (DM) experiment currently located at the SNOLAB underground facility in Sudbury, Ontario. Employing cryogenically cooled silicon and germanium crystals held just above absolute zero, the experiment detects DM particles via nuclear and electron recoils. The High Voltage (HV) detectors boast a low energy threshold granting high...
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Thomas Hepworth (The University of Winnipeg)18/08/2023, 12:15
The discovery of a non-zero permanent neutron electric dipole moment (nEDM) could be direct evidence of new physics beyond the Standard Model, due to its CP violating nature. To measure the nEDM, stable magnetic fields are required. The TRIUMF Ultra Cold Advanced Neutron (TUCAN) collaboration is using a 5-layer Magnetically Shielded Room (MSR) to achieve the required level of magnetic field...
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