Development of a detection method for {244}Pu by resonance ionization mass spectrometry

The long-lived actinide {sup 244}Pu (t{sub 1/2} = 81 Myr) is expected to be present in the Interstellar Medium from fresh r-process nucleosynthesis or in direct ejecta from supernovae. Deposition onto Earth may result in traces of live {sup 244}Pu in suitable reservoirs. We are developing a method f...

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Bibliographic Details
Published in:New astronomy reviews 2006-10, Vol.50 (7-8)
Main Authors: Ofan, A., Ahmad, I., Greene, J. P., Paul, M., Savina, M. R.
Format: Article
Language:English
Subjects:
ACTINIDES
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
DEPOSITION
DETECTION
EFFICIENCY
IONIZATION
MASS SPECTROSCOPY
NUCLEOSYNTHESIS
R PROCESS
RESONANCE
RESONANCE IONIZATION MASS SPECTROSCOPY
SPECTROSCOPY
SUPERNOVAE
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Summary:The long-lived actinide {sup 244}Pu (t{sub 1/2} = 81 Myr) is expected to be present in the Interstellar Medium from fresh r-process nucleosynthesis or in direct ejecta from supernovae. Deposition onto Earth may result in traces of live {sup 244}Pu in suitable reservoirs. We are developing a method for {sup 244}Pu detection based on resonance ionization mass spectroscopy. Using Gd as a proxy, we determine an overall efficiency of 0.5% in conditions applicable to the detection of Pu, and present preliminary results on Pu detection.
ISSN:1387-6473
1872-9630
DOI:10.1016/j.newar.2006.06.066