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dc.contributor.authorGarcía Borge, María José-
dc.contributor.authorBurke, D. G.-
dc.contributor.authorGietz, H.-
dc.contributor.authorHill, P.-
dc.contributor.authorKaffrell, N.-
dc.contributor.authorKurcewicz, W.-
dc.contributor.authorLøvhøiden, G.-
dc.contributor.authorMattsson, S.-
dc.contributor.authorNaumann, R. A.-
dc.contributor.authorNybø, K.-
dc.contributor.authorNyman, G.-
dc.contributor.authorThorsteinsen, T. F.-
dc.identifier.citationNuclear Physics A 464(2): 189-204 (1987)en_US
dc.description16 pages, 2 tables, 5 figures.en_US
dc.description.abstractMultipolarities of ~30 transitions in 227Ra have been established by measuring conversion electrons following the β− decay of 227Fr. For this purpose a "mini-orange"-type electron spectrometer has been constructed. The 227Fr isotopes were produced by the ISOLDE on-line separator at the CERN Synchro-cyclotron. Internal conversion coefficients were obtained from singles spectra and also from simultaneous γe− and γγ coincidence measurements. The new results support the placement of levels and transitions in the earlier level scheme but require changes in the previously assigned parities for four of the levels. Also, one E0 transition was identified. The results are consistent with previous interpretations for most of the levels that have been used to argue in favour of a small permanent octupole deformation for 227Ra.en_US
dc.format.extent666903 bytes-
dc.subjectRadioactivity 227Fr(β-) [from U(p, X)]en_US
dc.subjectMeasured I(e), γγ-, eγ-coinen_US
dc.subject227Ra deduced levels, ICC, γ-multipolarityen_US
dc.subjectUranium carbide targeten_US
dc.subjectOn-line mass separationen_US
dc.subjectGe, Si(Li) detectoren_US
dc.subjectMini-orange spectrometeren_US
dc.titleMeasurements of multipolarities in 227Ra as tests of evidence for stable octupole deformationen_US
dc.description.peerreviewedPeer revieweden_US
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