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Chlorine-38 and Sulphur-38 produced by Cosmic Radiation

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Abstract

DURING the past few years several cosmic-ray spallation products of atmospheric argon have been found in rain water and aerosols. The first observed argon spallation product was 32P (ref. 1), and was reported to be present in rain water in 1955. During the next two years the presence of 39Cl (ref. 2), 35S (ref. 3), 33P (ref. 4) and 22Na (ref. 5) were reported. In December of 1963 an additional radionuclide, 24Na (ref. 6), was reported to be present in rain water. The radionuclides 38Cl and 38S have now been detected in rain water for the first time.

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Authors and Affiliations

  1. Hanford Laboratories, General Electric Company, Richland, Washington

    R. W. PERKINS, C. W. THOMAS, M. W. HILL & J. M. NIELSEN

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  1. R. W. PERKINS
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  2. C. W. THOMAS
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  3. M. W. HILL
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  4. J. M. NIELSEN
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PERKINS, R., THOMAS, C., HILL, M. et al. Chlorine-38 and Sulphur-38 produced by Cosmic Radiation. Nature 205, 790–791 (1965). https://doi.org/10.1038/205790a0

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