Correlation Between Fission Tracks and Fission-Type Xenon from an Extinct Radioactivity

Details Correlation Between Fission Tracks and Fission-Type Xenon from an Extinct Radioactivity Correlation Between Fission Tracks and Fission-Type Xenon from an Extinct Radioactivity

Jun 1969

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1969phrvl..22.1198w&link_type=abstract

Physical Review Letters, vol. 22, Issue 22, pp. 1198-1201

Physics

16

Scientific paper

Meteoritic whitlockite containing excess fission tracks has a large concentration of excess neutron-rich xenon isotopes which is 25 times that calculated from the track density. The isotopic spectrum is identical to that calculated previously for the Pasamonte achondrite. These results uniquely associate this spectrum with in situ fission. Identification of the fissioning nucleus as Pu244 gives Pu244/U238 ≅ 1/30 at the time of xenon retention. Neither "sudden" nor "uniform" nucleosynthetic models give consistent solutions for Pu244/U238 and U235/U238.

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