A Regenerable Filter for Liquid Argon Purification
arXiv:0903.2066 · doi:10.1016/j.nima.2009.04.020
Abstract
A filter system for removing electronegative impurities from liquid argon is described. The active components of the filter are adsorbing molecular sieve and activated-copper-coated alumina granules. The system is capable of purifying liquid argon to an oxygen-equivalent impurity concentration of better than 30 parts per trillion, corresponding to an electron drift lifetime of at least 10 ms. Reduction reactions that occur at about 250 degrees Celsius allow the filter material to be regenerated in-situ through a simple procedure. In the following work we describe the filter design, performance, and regeneration process.
12 pages with 9 figures
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Cited by in corpus (12)
- The ArgoNeuT Detector in the NuMI Low-Energy beam line at Fermilab
- A Measurement of the Absorption of Liquid Argon Scintillation Light by Dissolved Nitrogen at the Part-Per-Million Level
- Liquid-phase purification for multi-tonne xenon detectors
- Analysis of a Large Sample of Neutrino-Induced Muons with the ArgoNeuT Detector
- The Effects of Dissolved Methane upon Liquid Argon Scintillation Light
- Status and New Ideas Regarding Liquid Argon Detectors
- Doping Liquid Argon with Xenon in ProtoDUNE Single-Phase: Effects on Scintillation Light
- ArgoNeuT, a liquid argon time projection chamber in a low energy neutrino beam
- First operation of LArTPC in the stratosphere as an engineering GRAMS balloon flight (eGRAMS)
- A liquid-phase loop-mode argon purification system
- Calibration of calorimetric measurement in a liquid argon time projection chamber
- Liquid-Argon Time Projection Chambers in the U.S