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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/8860
Title: Structure of Ac-231: Measurements of level half-lives
Authors: Boutami, R.; García Borge, María José; Mach, H.; Fraile, Luis M.; Gulda, K.; Aas, A. J.; García Raffi, Luis M.; Hagebø, E.; Kurcewicz, W.; Løvhøiden, G.; Martínez, T.; Rubio, Berta; Taín, José Luis; Tengblad, Olof
Keywords: Neutron-rich nuclei
[PACS] Lifetimes
[PACS] Gamma transitions and level energies
[PACS] Properties of specific nuclei listed by mass ranges: 220 ≤ A
[PACS] X- and gamma-ray spectroscopy
Issue Date: Nov-2007
Publisher: EDP Sciences
Società Italiana di Fisica
Series/Report no.: European Physical Journal-Special Topics 150: 87–88 (2007)
Abstract: There is lack of knowledge of the structure of the Ac-231 nucleus located in the upper border of the island of octupole deformation centered around A = 225. We have populated the excited states in Ac-231 by beta-decay from the parent Ra-231 produced at ISOLDE, CERN. The low-energy structure of Ac-231 has been investigated by means of γ, conversion electrons, γ-γ and γ-e(-) spectroscopy. We report here in the precise determination in Ac-231 of the half-life of the most intensively populated states by the Advanced Time Delayed ββγ(t) technique.
Description: 2 pages, 2 figures.-- PACS nrs.: 21.10.Tg; 23.20.Lv; 27.90.+b; 29.30.Kv.
Publisher version (URL): http://dx.doi.org/10.1140/epjst/e2007-00273-9
URI: http://hdl.handle.net/10261/8860
ISSN: 1951-6355 (Print)
1951-6401 (Online)
DOI: 10.1140/epjst/e2007-00273-9
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