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Alpha-decay half-life of Fr-221 in different environments

H. B. Jeppesen ; J. Byskov-Nielsen ; P. Wright (Institutionen för fundamental fysik) ; J. G. Correia ; L. M. Fraile ; H. O. U. Fynbo ; K Johnston ; K. Riisager
European Physical Journal A (1434-6001). Vol. 32 (2007), 1, p. 31-34.
[Artikel, refereegranskad vetenskaplig]

A possible dependence of the alpha decay process on the solid-state environment of the decaying nucleus has been investigated by measuring the alpha-decay half-life of Fr-221 at room temperature in different materials (Au, W, Si and polyethylene). The change in half-life between the insulator Si and the metals Au/W is found to be 0.30(17)% / 0.42(21)%, respectivly. Furthermore an improved value of 4.79(2) min was found for the absolute half-life of Fr-221.

Denna post skapades 2008-11-18.
CPL Pubid: 78268


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Institutionen för fundamental fysik (2005-2015)



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