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Spectroscopy and high-spin structure of Fr-210: Isomerism and potential evidence for configuration mixing

Margerin, Vincent; Lane, Gregory; Dracoulis, George; Palalani, Nyaladzi; Smith, Michael; Stuchbery, Andrew


The structure of 210Fr has been established up to an excitation energy of ∼5.5 MeV and spins of ∼25, via time-correlated γ -ray spectroscopy and using the 197Au(18O,5n) 210Fr reaction with pulsed beams at an energy of 97 MeV. A significantly different level scheme has been obtained compared to previous publications. Several isomers are reported here, including a J π = (23)+, τ = 686(9)-ns state at 4417 keV and a 10−, 29.8(11)-ns state at 1113 keV. The former isomer has been associated with the...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
Source: Physical Review C
DOI: 10.1103/PhysRevC.93.064309
Access Rights: Open Access


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