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HEC nouvelle source ionique pour TIMS

HEC nouvelle source ionique pour TIMS - Mass Spectrometry Forum

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Old 02-20-2008, 05:49 PM
Pipette Filler
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Default HEC nouvelle source ionique pour TIMS



Bonjour tout le monde,

J'aimerais avoir votre avis sur ça :


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.



Pour ma part je n'en ai jamais entendu parlé. Si vous connaissez, ou si vous avez des liens internet ou des papiers a ce sujet j'suis preneur.

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