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Huiyu Xiao8/12/26, 8:45 AMSession I
Pulsars provide a sensitive probe of heliospheric plasma through propagation-induced variations in dispersion measure (DM) (which measures the total electron column density) and scattering (which measures the scale of density perturbations perpendicular to the line of sight), particularly during solar conjunction. The Canadian Hydrogen Intensity Mapping Experiment (CHIME), together with its...
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Connor Bennett (Queens)8/12/26, 8:58 AMSession I
The NEWS-G experiment is a dark matter search that uses spherical proportional counters to detect low-energy particle interactions with great sensitivity. My work entails developing and implementing a new sensor design for the detector and perform experimental characterization through stability and spatial gain uniformity measurements using an Fe-55 source. These measurements are being used to...
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Qusai Almasri8/12/26, 9:11 AMSession I
This talk goes over some of the major infrastructure “anomalies” I dealt with at SNOLAB, mainly the VM host migration, cluster issues, and the cybersecurity work that came out of it. Goal was to secure the systems, contain whatever broke, and protect the research services people actually rely on. Armed with admin access, incomplete documentation, and a lot of troubleshooting.
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Howard Wen8/12/26, 9:25 AMSession I
Robust slow-control infrastructure is required to host meaningful noble liquid detector R&D, particularly on sophisticated light detectors at cryogenic temperatures. My work focuses on building an integrated slow control system for real-time data monitoring, automated and remote slow control, and a data analysis chain for a liquid argon cryostat. This talk will cover the slow control system...
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Patrick Wang (Haverford College)8/12/26, 9:37 AMSession I
Dark galaxies are structures characterized by a large dark matter halo devoid of star formation. Although they are both predicted by the Lambda Cold Dark Matter model and present in cosmological simulations, definitive observations of dark galaxies do not yet exist. In this work, we search for potential dark galaxy candidates in HI detections made by the Arecibo radio telescope from 2005 to...
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Julia Brachman8/12/26, 9:50 AMSession I
A single-phase liquid argon chamber is in development by the SCALAR group at Queen's University as part of a research and development program for future liquid argon dark matter detectors. A Geant4 simulation is being developed alongside the detector to model its response, guide design, and evaluate performance. This talk will focus on my contributions to the simulation through the...
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Kacper Rogut (SNOLAB student)8/12/26, 10:03 AMSession I
Radon (222Rn) is a prominent background source in the low-background SNOLAB experiments. Silver doped zinc sulfide (ZnS:Ag) is used as a scintillator in a radon counter known as a Lucas Cell. Commercial ZnS:Ag is readily available, but it lacks the purity required for low-background applications. This project focuses on synthesizing ZnS using selective precipitation to remove trace impurities,...
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Kaitlyn Broad (Queen's University)8/12/26, 10:16 AMSession I
The High Energy Light Isotope eXperiment (HELIX) is a multi-phase balloon-borne experiment that aims to measure the isotopic abundance of cosmic-rays with energies between approximately 0.2-10 GeV/n. The time-of-flight (TOF) system, one of HELIX’s subdetectors, was used to measure the charge and velocity of nuclei passing through with energies of up to 1 GeV/n. The top and bottom of the TOF...
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