First Large Scale Production of Low Radioactivity Argon From Underground Sources

@inproceedings{Back2012FirstLS,
  title={First Large Scale Production of Low Radioactivity Argon From Underground Sources},
  author={Henning Olling Back and Frank Calaprice and Catriona Condon and Erica de Haas and Richard J. Ford and Cristiano Galbiati and Augusto Goretti and Tristen Hohman and An. Inanni and Benjamin Loer and David Montanari and Andrew Nelson and Andrea Pocar},
  year={2012}
}
We report on the rst large-scale production of low radioactivity argon from underground gas wells. Low radioactivity argon is of general interest, in particular for the construction of large scale WIMP dark matter searches and detectors of reactor neutrinos for non-proliferation eorts. Atmospheric argon has an activity of about 1 Bq/kg from the decays of 39 Ar; the concentration of 39 Ar in the underground argon we are collecting is at least a factor of 100 lower than this value. The argon is… CONTINUE READING

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