HEC nouvelle source ionique pour TIMS

[Neodymium4ever]

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A high efficiency cavity ion source using TIMS for nuclear forensic analysis

S. BürgerCorresponding Author Contact Information, a, E-mail The Corresponding Author, L.R. RiciputiCorresponding Author Contact Information, a, E-mail The Corresponding Author, S. Turgeona, D. Bosticka, E. McBaya and M. Lavellea
aOak Ridge National Laboratory, Chemical & Isotope Mass Spectrometry Group, Transuranic Research Institute, Oak Ridge, TN 37831-6375, USA
Received 11 September 2006; revised 1 November 2006; accepted 3 November 2006. Available online 18 December 2006.

Abstract

Using a high efficiency cavity interfaced to a ThermoFinnigan ‘Triton’ multi-collector TIMS, a total efficiency (atoms loaded to ions detected) of up to 10% for plutonium, strontium, and neodymium loaded on resin beads introduced into a rhenium cavity are feasible. A quantification limit well below 100 attograms of plutonium (104 atoms 239−242+244Pu) can be reported. Furthermore, the achieved accuracy and precision are suitable to gain crucial geolocation information at sub-nanogram concentration for elements like strontium. The use of a high efficiency cavity in combination with a multi-collector TIMS appears to be a promising analytical tool to gain crucial (nuclear) forensic information.



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