Decay of 48-50Ar isotopes

Summary, in English

Information on β-decay properties of neutron-rich ^48-50Ar was obtained at the ISOLDE mass-separator facility at CERN using isobaric selectivity. This was achieved by a combination of a plasma-ion source with a cooled transfer line and subsequent mass-separation. Normally, argon beams cannot be mass-separated from intense multi-charged symmetric fission krypton and xenon. Several techniques were used successfully in order to overcome this problem. Implication of the obtained information for a better understanding of the origin of the ⁴⁸Ca/ ⁴⁶Ca isotopic anomaly discovered in inclusions from the Allende meteorite is discussed.

• Author: L. Weissman; U. Bergmann; J. Cederkall; L. Fraile; S. Franchoo; H. O U Fynbo; T. Fritioff; U. Koster; O. Arnd; I. Dillman; O. Hallmann; K. L. Kratz; B. Pfeiffer; A. Wohr; L. Gaudefroy; O. Sorlin
• Publishing year: 2012
• Language: English
• Publication/Series: Journal of Physics: Conference Series
• Volume: 337
• Issue: 1
• Links: http://dx.doi.org/10.1088/1742-6596/337/1/012018
• Document type: Journal article
• Publisher: IOP Publishing
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 1742-6588