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Structure of Ac-231: Measurements of level half-lives
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy. (Kärnstrukturfysik)
2007 (English)In: European Physical Journal - Special Topics, ISSN 1951-6355, Vol. 150, no 1, 87-88 p.Article in journal (Refereed) Published
Abstract [en]

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 gamma, conversion electrons, gamma-gamma and gamma-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 beta beta gamma(t) technique.

Place, publisher, year, edition, pages
2007. Vol. 150, no 1, 87-88 p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-17012DOI: 10.1140/epjst/e2007-00273-9ISI: 000251601600025OAI: oai:DiVA.org:uu-17012DiVA: diva2:44783
Available from: 2008-06-13 Created: 2008-06-13 Last updated: 2011-04-08Bibliographically approved

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Mach, H.
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