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Development of Liquid Argon Purification System for Neutrino Research
Abstract:
Liquid Argon Time Projection Chambers (LArTPC) are widely used for neutrino
detection. Q-Pix collaboration focuses on improving neutrino event reconstruction
through a 3D pixelated readout system, offering lower detection thresholds and im-
proved spatial and energy resolution. To support the development of Q-Pix readout
technology, our group at Wellesley is constructing a lab-scale LArTPC for prototype
testing, which requires a dedicated liquid argon purification system. The purifier con-
tains active copper and molecular sieves which eliminate oxygen and water, keeping
electronegative contaminants at an extremely low level. The associated purity moni-
tor measures the resulting purity of the liquid argon by monitoring the attenuation of
charge signal. My thesis includes the construction of the liquid argon purification sys-
tem, the implementation of a slow control and monitoring system with an integrated
database, and the measurement of impurity concentration to evaluate the purifier’s
performance. Lab Website
Particle Physics Experiment | Neutrino | Dark Matter | Detectors | Instrumentation R&D
Q-Pix
2021 - 2023
CMS PURSUE
2023 - 2024
TESS follow-up
2022 - 2025
Honors Thesis
2023 - 2025
Talks / Posters
Quality assurance of Macro-Pixel Sub-Assemblies (MaPSA) before installation in CMS
Advisor: Dr. Jennet Dickinson, Fermilab
The High Luminosity upgrade for CERN's LHC will replace CMS silicon tracking detectors with PS modules featuring the Macro-Pixel Sub-Assembly (MaPSA). I developed database system for MaPSA quality assurance, enabling performance tracking of each MaPSA's pixel through an accessible database before installation into the CMS outer tracker.
Development of a Small-Scale Liquid Argon Purification System for Neutrino Research
Advisor: Dr. James Battat, Wellesley College
We developed a small-scale LAr purification system for neutrino detection, using active copper and molecular sieves to eliminate oxygen and water, ensuring low contaminant levels. I constructed the apparatus, developed data acquisition software, and ran the regeneration process to prepare the purifier.
Ruhlman Conference, Wellesley College
April 16, 2025: Presentation on "Development of a Small Scale Liquid Argon Purification System for Neutrino Research" Presentation
April 11, 2024: Poster presentation "Neutrino Hunters-Developing Experimental Prototypes to Test Neutrino Detection Techniques" Poster
April 26, 2023: Group panel on "Exploring The Universe From a Room With No Windows" Presentation
Tanner Conference, Wellesley College
October 29, 2024: Presentation on Wellesley summer research program experiences, "Tiny Particles, Big Questions: Exploring Experimental Particle Physics" Presentation
November 14, 2023: Presentation on summer research experiences at Fermilab and Thai National Radio Telescope "From Subatomic Particles to the Vast Universe and Beyond…" Presentation
Skills
- Computing: Python, MATLAB, Arduino IDE, Unix shell, Finite Element Analysis (Gmsh, FreeFEM, Elmer), Computer-aided Design (OnShape, Autodesk Fusion), JavaScript
- Others: Graphic design, Website development
