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Assignment of levels in ²⁰⁸Fr and 10⁻ isomers in the odd-odd isotones ²⁰⁶At and ²⁰⁸Fr

Dracoulis, G. D.; Davidson, P. M.; Lane, G. J.; Byrne, A. P.; Kibédi, T.; Nieminen, P.; Wilson, A. N.; Watanabe, H.


Excited states in ²⁰⁸Fr have been identified using the ¹⁹⁷Au(16O, 5n)²⁰⁸Fr reaction and a variety of time-correlated γγ -ray and conversion electron spectroscopic techniques. Transitions above and below a ττ = 623(16) ns 10- isomer are placed in the level scheme. This isomer is analogous to that observed in the odd-odd isotone ²⁰⁶At for which additional spectroscopic information is also obtained, including a precise lifetime of ττ = 1173(30) ns. The γγ -rays assigned to ²⁰⁸Fr are the...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: The European Physical Journal A
DOI: 10.1140/epja/i2009-10756-y


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