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Título : The doubly closed shell nucleus Sn-132(50)82
Autor : Björnstad, T., García Borge, María José, Blomqvist, J., Von Dincklage, R. D., Ewan, G. T., Hoff, P., Jonson, B., Kawade, K., Kerek, A., Klepper, O., Lövhöiden, G., Mattsson, S., Nyman, G., Ravn, H. L., Rudstam, G., Sistemich, K., Tengblad, Olof
Palabras clave : Radioactivity In-132 (β-) [from U(p,fission)]: measured Eγ, Iγ, Ee, Ie, En, T1/2,Qβ, γγ-, βγ-coin
Sn-132 deduced level scheme, B(E2), neutron separation energy, ICC
Uranium carbide target
Ge(Li), Si(Li), He-3 ion chamber, plastic scintillator telescope detectors
On-line mass separation
Fecha de publicación : 26-May-1986
Editor: Elsevier
Citación : Nuclear Physics A 453(3): 463-485 (1986)
Resumen: The structure of excited states in Sn-132, fed in the β-decay of In-132, has been investigated. Absolute intensities were deduced from γ-singles measurements. From multi-spectrum analysis of γ-lines the half-life of In-132 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 In-132 was determined, from γ-gated β-spectra, to be Q(β) = 13.6 ± 0.4 MeV. A lower limit of 6.968 MeV for the neutron separation energy in Sn-132 was deduced from the β-delayed neutron spectrum. The experimental results on the level structure of the doubly closed shell nucleus Sn-132 show that the shell model is applicable even far from the valley of stability.
Descripción : 23 pages, 4 tables, 10 figures.
Versión del editor:
ISSN: 0375-9474
DOI: 10.1016/0375-9474(86)90447-1
Citación : Nuclear Physics A 453(3): 463-485 (1986)
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