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Development of a RILIS ionisation scheme for gold at ISOLDE, CERN
2006 (English)In: Hyperfine Interactions, ISSN 0304-3843, E-ISSN 1572-9540, Vol. 171, no 1-3, 109-116 p.Article in journal (Refereed) Published
Abstract [en]

At the ISOLDE on-line isotope separation facility, the resonance ionisation laser ion source (RILIS) can be used to ionise reaction products as they effuse from the target. The RILIS process of laser step-wise resonance ionisation of atoms in a hot metal cavity provides a highly element selective stage in the preparation of the radioactive ion beam. As a result, the ISOLDE mass separators can provide beams of a chosen isotope with greatly reduced isobaric contamination. With the addition of a new three-step ionisation scheme for gold, the RILIS is now capable of ionising 26 of the elements. The optimal scheme was determined during an extensive study of the atomic energy levels and auto-ionising states of gold, carried out by means of in-source resonance ionisation spectroscopy. Details of the ionisation scheme and a summary of the spectroscopy study are presented.

Place, publisher, year, edition, pages
2006. Vol. 171, no 1-3, 109-116 p.
Keyword [en]
radioactive ion beams, resonance ionisation laser ion source, Au
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-41460DOI: 10.1007/s10751-006-9498-8ISI: 000245494800008ScopusID: 2-s2.0-34147210683OAI: diva2:443797
QC 20110927. Conference: 7th International Poznan Workshop on Nuclear Ground and Isomeric State Properties. Adam Mickiewicz Univ, Poznan, POLAND. MAY 29-JUN 01, 2006 Available from: 2011-09-27 Created: 2011-09-27 Last updated: 2011-09-27Bibliographically approved

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