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The Doubly Closed Shell Nucleus Sn-132(50)82

T. Bjornstad ; M. J. G. Borge ; J. Blomqvist ; R. D. Vondincklage ; G. T. Ewan ; P. Hoff ; Björn Jonson (Fysiska institutionen) ; K. Kawade ; A. Kerek ; O. Klepper ; G. Lovhoiden ; Stanley Mattsson (Fysiska institutionen) ; Göran Nyman (Fysiska institutionen) ; H. L. Ravn ; G. Rudstam ; K. Sistemich ; Olof Tengblad (Fysiska institutionen)
Nuclear Physics A (0375-9474). Vol. 453 (1986), 3, p. 463-485.
[Artikel, refereegranskad vetenskaplig]

The structure of excited states in 132Sn, fed in the β-decay of 132In, has been investigated. Absolute intensities were deduced from γ-singles measurements. From multi-spectrum analysis of γ-lines the half-life of 132In was determined to be 186 ± 22 ms. A level scheme based on γγ and βγ coincidences is presented. The conversion electron spectrum has been studied and internal conversion coefficients deduced for two low-energy transitions. The total decay energy of 132In was determined, from γ-gated β-spectra, to be Qβ = 13.6 ± 0.4 MeV. A lower limit of 6.968 MeV for the neutron separation energy in 132Sn was deduced from the β-delayed neutron spectrum. The experimental results on the level structure of the doubly closed shell nucleus 132Sn show that the shell model is applicable even far from the valley of stability.

Denna post skapades 2006-08-28. Senast ändrad 2013-07-10.
CPL Pubid: 10977


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