Final published version, 11.5 MB, PDF document
Available under license: CC BY: Creative Commons Attribution 4.0 International License
Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Spatial and Temporal Evaluations of the Liquid Argon Purity in ProtoDUNE-SP
AU - DUNE Collaboration
AU - Abbaslu, S.
AU - Abud, A. Abed
AU - Acciarri, R.
AU - Accorsi, L. P.
AU - Acero, M. A.
AU - Adames, M. R.
AU - Adamov, G.
AU - Adamowski, M.
AU - Adriano, C.
AU - Akbar, F.
AU - Alemanno, F.
AU - Alex, N. S.
AU - Allison, K.
AU - Alrashed, M.
AU - Alton, A.
AU - Alvarez, R.
AU - Alves, T.
AU - Amar, H.
AU - Amedo, P.
AU - Andrade, D. A.
AU - Andreopoulos, C.
AU - Andreotti, M.
AU - Andrews, M. P.
AU - Andrianala, F.
AU - Andringa, S.
AU - Anjarazafy, F.
AU - Ansarifard, S.
AU - Antic, D.
AU - Antoniassi, M.
AU - Aranda-Fernandez, A.
AU - Arellano, L.
AU - Diaz, E. Arrieta
AU - Arroyave, M. A.
AU - Arteropons, M.
AU - Asaadi, J.
AU - Ascencio, M.
AU - Ashkenazi, A.
AU - Asner, D.
AU - Asquith, L.
AU - Atkin, E.
AU - Auguste, D.
AU - Blake, A.
AU - Brailsford, D.
AU - Gu, L.
AU - Mawby, I.
AU - Mouster, G.
AU - Nowak, A.
AU - Nowak, J. A.
AU - Ratoff, P.
PY - 2025/9/4
Y1 - 2025/9/4
N2 - Liquid argon time projection chambers (LArTPCs) rely on highly pure argon to ensure that ionization electrons produced by charged particles reach readout arrays. ProtoDUNE Single-Phase (ProtoDUNE-SP) was an approximately 700-ton liquid argon detector intended to prototype the Deep Underground Neutrino Experiment (DUNE) Far Detector Horizontal Drift module. It contains two drift volumes bisected by the cathode plane assembly, which is biased to create an almost uniform electric field in both volumes. The DUNE Far Detector modules must have robust cryogenic systems capable of filtering argon and supplying the TPC with clean liquid. This paper will explore comparisons of the argon purity measured by the purity monitors with those measured using muons in the TPC from October 2018 to November 2018. A new method is introduced to measure the liquid argon purity in the TPC using muons crossing both drift volumes of ProtoDUNE-SP. For extended periods on the timescale of weeks, the drift electron lifetime was measured to be above 30 ms using both systems. A particular focus will be placed on the measured purity of argon as a function of position in the detector.
AB - Liquid argon time projection chambers (LArTPCs) rely on highly pure argon to ensure that ionization electrons produced by charged particles reach readout arrays. ProtoDUNE Single-Phase (ProtoDUNE-SP) was an approximately 700-ton liquid argon detector intended to prototype the Deep Underground Neutrino Experiment (DUNE) Far Detector Horizontal Drift module. It contains two drift volumes bisected by the cathode plane assembly, which is biased to create an almost uniform electric field in both volumes. The DUNE Far Detector modules must have robust cryogenic systems capable of filtering argon and supplying the TPC with clean liquid. This paper will explore comparisons of the argon purity measured by the purity monitors with those measured using muons in the TPC from October 2018 to November 2018. A new method is introduced to measure the liquid argon purity in the TPC using muons crossing both drift volumes of ProtoDUNE-SP. For extended periods on the timescale of weeks, the drift electron lifetime was measured to be above 30 ms using both systems. A particular focus will be placed on the measured purity of argon as a function of position in the detector.
KW - physics.ins-det
KW - hep-ex
U2 - 10.1088/1748-0221/20/09/P09008
DO - 10.1088/1748-0221/20/09/P09008
M3 - Journal article
VL - 20
JO - Journal of Instrumentation
JF - Journal of Instrumentation
SN - 1748-0221
IS - 09
M1 - P09008
ER -