Purification of large volume of liquid argon for LEGEND-200

Małgorzata Harańczyk; Nina Burlac; Natalia DiMarco; Patrick Krauze; Tomasz Mróz; Laszlo Papp; Giuseppe Salamanna; Stefan Schönert; Mario Schwarz; Diego Tagnani; Stefan Tombiński; Christoph Vogl; Grzegorz Zuzel

Purification of large volume of liquid argon for LEGEND-200

Małgorzata Harańczyk, Nina Burlac, Natalia DiMarco, Patrick Krauze, Tomasz Mróz, Laszlo Papp, Giuseppe Salamanna, Stefan Schönert, Mario Schwarz, Diego Tagnani, Stefan Tombiński, Christoph Vogl, Grzegorz Zuzel

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2 Scopus citations

Abstract

The design, construction and performance of the system capable of purifying 65 m³ of liquid argon to sub-ppm level designed for LEGEND-200 experiment is presented. The quality of the purified liquid argon is monitored in real-time during the purification process, by measuring the argon triplet state lifetime and simultaneous direct measurements of the concentrations of impurities such as water, oxygen, and nitrogen with a sensitivity of 0.1 ppm. The achieved argon triplet lifetime value measured inside the LEGEND cryostat, when filled in 70% of its capacity, was at the level of τ3 = 1.3 μs. If needed, the system may also be used laters. If needed, the system may also be used later to purify liquid argon filled into the LEGEND cryostat in the loop mode.

Original language	English
Article number	102
Journal	Proceedings of Science
Volume	380
State	Published - 24 May 2022
Event	22nd Particles and Nuclei International Conference, PANIC 2021 - Virtual, Online, Portugal Duration: 5 Sep 2021 → 10 Sep 2021

Cite this

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title = "Purification of large volume of liquid argon for LEGEND-200",

abstract = "The design, construction and performance of the system capable of purifying 65 m3 of liquid argon to sub-ppm level designed for LEGEND-200 experiment is presented. The quality of the purified liquid argon is monitored in real-time during the purification process, by measuring the argon triplet state lifetime and simultaneous direct measurements of the concentrations of impurities such as water, oxygen, and nitrogen with a sensitivity of 0.1 ppm. The achieved argon triplet lifetime value measured inside the LEGEND cryostat, when filled in 70% of its capacity, was at the level of τ3 = 1.3 μs. If needed, the system may also be used laters. If needed, the system may also be used later to purify liquid argon filled into the LEGEND cryostat in the loop mode.",

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T1 - Purification of large volume of liquid argon for LEGEND-200

AU - Harańczyk, Małgorzata

AU - Burlac, Nina

AU - DiMarco, Natalia

AU - Krauze, Patrick

AU - Mróz, Tomasz

AU - Papp, Laszlo

AU - Salamanna, Giuseppe

AU - Schönert, Stefan

AU - Schwarz, Mario

AU - Tagnani, Diego

AU - Tombiński, Stefan

AU - Vogl, Christoph

AU - Zuzel, Grzegorz

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0)

PY - 2022/5/24

Y1 - 2022/5/24

N2 - The design, construction and performance of the system capable of purifying 65 m3 of liquid argon to sub-ppm level designed for LEGEND-200 experiment is presented. The quality of the purified liquid argon is monitored in real-time during the purification process, by measuring the argon triplet state lifetime and simultaneous direct measurements of the concentrations of impurities such as water, oxygen, and nitrogen with a sensitivity of 0.1 ppm. The achieved argon triplet lifetime value measured inside the LEGEND cryostat, when filled in 70% of its capacity, was at the level of τ3 = 1.3 μs. If needed, the system may also be used laters. If needed, the system may also be used later to purify liquid argon filled into the LEGEND cryostat in the loop mode.

AB - The design, construction and performance of the system capable of purifying 65 m3 of liquid argon to sub-ppm level designed for LEGEND-200 experiment is presented. The quality of the purified liquid argon is monitored in real-time during the purification process, by measuring the argon triplet state lifetime and simultaneous direct measurements of the concentrations of impurities such as water, oxygen, and nitrogen with a sensitivity of 0.1 ppm. The achieved argon triplet lifetime value measured inside the LEGEND cryostat, when filled in 70% of its capacity, was at the level of τ3 = 1.3 μs. If needed, the system may also be used laters. If needed, the system may also be used later to purify liquid argon filled into the LEGEND cryostat in the loop mode.

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M3 - Conference article

AN - SCOPUS:85131699881

SN - 1824-8039

VL - 380

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 102

T2 - 22nd Particles and Nuclei International Conference, PANIC 2021

Y2 - 5 September 2021 through 10 September 2021

ER -

Purification of large volume of liquid argon for LEGEND-200

Abstract

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