A study of the trace 39Ar content in argon from deep underground sources

J. Xu; F. Calaprice; C. Galbiati; A. Goretti; G. Guray; T. Hohman; D. Holtz; An Ianni; M. Laubenstein; B. Loer; C. Love; C. J. Martoff; D. Montanari; S. Mukhopadhyay; A. Nelson; S. D. Rountree; R. B. Vogelaar; A. Wright

doi:10.1016/j.astropartphys.2015.01.002

A study of the trace ³⁹Ar content in argon from deep underground sources

J. Xu, F. Calaprice, C. Galbiati, A. Goretti, G. Guray, T. Hohman, D. Holtz, An Ianni, M. Laubenstein, B. Loer, C. Love, C. J. Martoff, D. Montanari, S. Mukhopadhyay, A. Nelson, S. D. Rountree, R. B. Vogelaar, A. Wright

Physics

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

The discovery of argon from deep underground sources with significantly less ³⁹Ar than atmospheric argon was an important step in the development of direct dark matter detection experiments using argon as the active target. We report on the design and operation of a low-background single-phase liquid argon detector that was built to study the ³⁹Ar content of this underground argon. Underground argon from the Kinder Morgan CO₂ plant in Cortez, Colorado was determined to have less than 0.65% of the ³⁹Ar activity in atmospheric argon, or 6.6 mBq/kg specific ³⁹Ar activity.

Original language	English (US)
Pages (from-to)	53-60
Number of pages	8
Journal	Astroparticle Physics
Volume	66
DOIs	https://doi.org/10.1016/j.astropartphys.2015.01.002
State	Published - Jun 2015

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics

Keywords

Ar
Dark matter instrumentation
Low-background counting
Low-radioactivity technique
Underground argon

Access to Document

10.1016/j.astropartphys.2015.01.002

Cite this

Xu, J., Calaprice, F., Galbiati, C., Goretti, A., Guray, G., Hohman, T., Holtz, D., Ianni, A., Laubenstein, M., Loer, B., Love, C., Martoff, C. J., Montanari, D., Mukhopadhyay, S., Nelson, A., Rountree, S. D., Vogelaar, R. B., & Wright, A. (2015). A study of the trace ³⁹Ar content in argon from deep underground sources. Astroparticle Physics, 66, 53-60. https://doi.org/10.1016/j.astropartphys.2015.01.002

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title = "A study of the trace 39Ar content in argon from deep underground sources",

abstract = "The discovery of argon from deep underground sources with significantly less 39Ar than atmospheric argon was an important step in the development of direct dark matter detection experiments using argon as the active target. We report on the design and operation of a low-background single-phase liquid argon detector that was built to study the 39Ar content of this underground argon. Underground argon from the Kinder Morgan CO2 plant in Cortez, Colorado was determined to have less than 0.65% of the 39Ar activity in atmospheric argon, or 6.6 mBq/kg specific 39Ar activity.",

keywords = "Ar, Dark matter instrumentation, Low-background counting, Low-radioactivity technique, Underground argon",

author = "J. Xu and F. Calaprice and C. Galbiati and A. Goretti and G. Guray and T. Hohman and D. Holtz and An Ianni and M. Laubenstein and B. Loer and C. Love and Martoff, {C. J.} and D. Montanari and S. Mukhopadhyay and A. Nelson and Rountree, {S. D.} and Vogelaar, {R. B.} and A. Wright",

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Xu, J, Calaprice, F, Galbiati, C, Goretti, A, Guray, G, Hohman, T, Holtz, D, Ianni, A, Laubenstein, M, Loer, B, Love, C, Martoff, CJ, Montanari, D, Mukhopadhyay, S, Nelson, A, Rountree, SD, Vogelaar, RB & Wright, A 2015, 'A study of the trace ³⁹Ar content in argon from deep underground sources', Astroparticle Physics, vol. 66, pp. 53-60. https://doi.org/10.1016/j.astropartphys.2015.01.002

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T1 - A study of the trace 39Ar content in argon from deep underground sources

AU - Xu, J.

AU - Calaprice, F.

AU - Galbiati, C.

AU - Goretti, A.

AU - Guray, G.

AU - Hohman, T.

AU - Holtz, D.

AU - Ianni, An

AU - Laubenstein, M.

AU - Loer, B.

AU - Love, C.

AU - Martoff, C. J.

AU - Montanari, D.

AU - Mukhopadhyay, S.

AU - Nelson, A.

AU - Rountree, S. D.

AU - Vogelaar, R. B.

AU - Wright, A.

PY - 2015/6

Y1 - 2015/6

N2 - The discovery of argon from deep underground sources with significantly less 39Ar than atmospheric argon was an important step in the development of direct dark matter detection experiments using argon as the active target. We report on the design and operation of a low-background single-phase liquid argon detector that was built to study the 39Ar content of this underground argon. Underground argon from the Kinder Morgan CO2 plant in Cortez, Colorado was determined to have less than 0.65% of the 39Ar activity in atmospheric argon, or 6.6 mBq/kg specific 39Ar activity.

AB - The discovery of argon from deep underground sources with significantly less 39Ar than atmospheric argon was an important step in the development of direct dark matter detection experiments using argon as the active target. We report on the design and operation of a low-background single-phase liquid argon detector that was built to study the 39Ar content of this underground argon. Underground argon from the Kinder Morgan CO2 plant in Cortez, Colorado was determined to have less than 0.65% of the 39Ar activity in atmospheric argon, or 6.6 mBq/kg specific 39Ar activity.

KW - Ar

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KW - Low-background counting

KW - Low-radioactivity technique

KW - Underground argon

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