Physics
Scientific paper
Jan 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007hyint.174...33l&link_type=abstract
Hyperfine Interactions, Volume 174, Issue 1-3, pp. 33-39
Physics
4
Radioactive Ion Beams, Laser Ionization, Radiofrequency Quadrupole, Ion Guide
Scientific paper
Reactions such as 25Al(p, γ)26Si are the key to understand the production of 26 g Al and 26 m Al in our galaxy. Experimental results could provide important constraints on nova nucleosynthesis and modelling where 26Al is believed to be produced. To achieve such measurements, high-intensity and high-purity radioactive beams are required. However, production targets at ISOL-type facilities such as ISAC at TRIUMF produce high-intensity alkali beams by surface ionization on hot transfer tubes hampering the measurement of isotopes of interest. To overcome this issue, an ion source combining a segmented linear radiofrequency quadrupole (RFQ) to a laser ion source is being built. Its main function is to suppress alkali impurities whilst allowing for fast-release of short-lived isotopes. The beam production method, the RFQ/laser ion source and the removal of alkali contaminants are discussed in this paper.
Bricault Pierre
Lassen J.
Lavoie J. P.
Pearson Matthew Richard
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