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

Authors
Bonetti, R Guglielmetti, A Poli, G Sacchi, E Fink, D Hotchkis, MAC Jacobsen, GE Lawson, EM Hua, Q Smith, AM Tuniz, C
Citation
R. Bonetti et al., C-14 in uranium and thorium minerals: a signature of cluster radioactivity?, EUR PHY J A, 5(2), 1999, pp. 235-238
Citations number
16
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL A
ISSN journal
14346001 → ACNP
Volume
5
Issue
2
Year of publication
1999
Pages
235 - 238
Database
ISI
SICI code
1434-6001(199906)5:2<235:CIUATM>2.0.ZU;2-#
Abstract
Various uranium and thorium minerals have been analysed with accelerator ma ss spectrometry to determine their C-14 content. It is found that, whenever the contribution from secondary reactions such as the B-11(alpha, p)C-14 i s sufficiently low, the C-14 Concentration is consistent with that expected from C-14 (spontaneous) cluster radioactivity from radium isotopes of the uranium and thorium natural series.