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Updated: Oct 8, 2026

Separation of Uranium and Thorium for 230Th-U Dating of Submarine Hydrothermal Sulfides
Published on: May 20, 2019
Rapid non-destructive quantitative estimation of urania/thoria in mixed thorium uranium di-oxide pellets by
B B Shriwastwa1, A Kumar, B Raghunath
1Radiometallurgy Division, Bhabha Atomic Research Center, Trombay, Mumbai, India.
Abstract:
A non-destructive technique using high-resolution gamma-ray spectrometry has been standardised for quantitative estimation of uranium/thorium in mixed (ThO2-UO2) fuel pellets of varying composition. Four gamma energies were selected; two each from the uranium and thorium series and the time of counting has been optimised. This technique can be used for rapid estimation of U/Th percentage in a large number of mixed fuel pellets from a production campaign.
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