On concentration of ${}^{42}$Ar in the Earth's atmosphere

Abstract

Data from the DBA liquid argon ionization chamber experiment have been used to obtain an estimate on the concentration of ${}^{42}$Ar in the Earth's atmosphere, $6.8_{-3.2}^{+1.7}\cdot 10^{-21}$ atoms of ${}^{42}$Ar per atom of ${}^{40}$Ar corresponding to the ${}^{42}$Ar activity of $1.2_{-0.5}^{+0.3}$ $\mu$Bq per cubic meter of air.

12 pages, 5 figures

Cited by in corpus (1)

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