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14C in uranium and thorium minerals: a signature of cluster radioactivity?

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Abstract:

Various uranium and thorium minerals have been analysed with accelerator mass spectrometry to determine their 14C content. It is found that, whenever the contribution from secondary reactions such as the 11B(α,p)14C is sufficiently low, the 14C concentration is consistent with that expected from 14C (spontaneous) cluster radioactivity from radium isotopes of the uranium and thorium natural series.

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Authors and Affiliations

  1. Istituto di Fisica Generale Applicata dell'Università di Milano and Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Via Celoria 16, Milano, Italy, , , , , , IT

    R. Bonetti, A. Guglielmetti & G. Poli

  2. Dipartimento di Scienze della Terra, Università di Torino, Via Valperga Caluso 35, Torino, Italy, , , , , , IT

    E. Sacchi

  3. Australian Nuclear Science and Technology Organization, Sydney, Australia, , , , , , AU

    D. Fink, M.A.C. Hotchkis, G.E. Jacobsen, E.M. Lawson, Q. Hua, A.M. Smith & C. Tuniz

Authors
  1. R. Bonetti
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  2. A. Guglielmetti
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  3. G. Poli
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  4. E. Sacchi
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  5. D. Fink
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  6. M.A.C. Hotchkis
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  7. G.E. Jacobsen
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  8. E.M. Lawson
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  9. Q. Hua
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  10. A.M. Smith
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  11. C. Tuniz
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Received: 15 February 1999

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Bonetti, R., Guglielmetti, A., Poli, G. et al. 14C in uranium and thorium minerals: a signature of cluster radioactivity? . EPJ A 5, 235–238 (1999). https://doi.org/10.1007/s100500050279

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  • DOI: https://doi.org/10.1007/s100500050279

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