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The chemical history of $^{14}{\rm C}$ in deep oilfields

G. Bonvicini·N. Harris·V. Paolone
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Abstract

14C is an overwhelming background in low-background underground experiments, to the point where the observation of the all-important (pp) neutrinos from the Sun can not be observed in carbon-containing experiments. This paper shows that 14C purity can be improved by four orders of magnitude by a careful selection of the gas field. Two large reduction factors are at work: the low chemical affinity of methane to single carbon, and the migration of natural gas away from nitrogen-bearing kerogen during as the oilfield matures.

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G. Bonvicini, N. Harris, V. Paolone. 2003-08-08. The chemical history of $^{14}{\rm C}$ in deep oilfields. https://arxiv.org/abs/hep-ex/0308025

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