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Bibliographic Details
Main Authors: Wei, Wenzhao, Jaidee, I-see Warisa, Dockal, Spencer, Tsvetkova, Vyara, Bui, Genevieve, Lin, Tenaya Chen, Epstein, Lucia, Faubus, Ava, Hambraeus, Neneh M. T., Lyon, Sushine B., Lopez, Diana, McGee, Natalie, Migden, Piper J., Nicollin, Cleo, Unnithan, Meenakshi, Asaadi, Jonathan, Battat, James B. R.
Format: Preprint
Published: 2026
Subjects:
Instrumentation and Detectors
High Energy Physics - Experiment
Online Access:https://arxiv.org/abs/2604.21307
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Table of Contents:
  • We report results from a 13-liter purified liquid argon test stand at Wellesley College. The system includes a single-pass liquid-phase purification column, a double-gridded purity monitor to assess the electron lifetime, and a slow control and data acquisition system. Initial measurements demonstrate an O$_2$-equivalent impurity concentration of 0.25 ppb, corresponding to an electron lifetime of 1.5 ms at a drift field of 500 V/cm. This test stand supports ongoing detector R&D on charge and light readout technologies for future large-scale liquid argon time projection chambers, such as Q-Pix and other cold electronics systems, as part of a facility at Wellesley College for fundamental studies of LArTPC readouts.

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