摘要

This work provides an assessment of suitable forensic indicators that may be measured by portable mass spectrometry systems. Traditional assessments of nuclear fuel cycle manipulation or other nuclear activities often depend upon analyses of uranium and plutonium isotopes in the nuclear fuel. Any entity engaging in shortened fuel cycle activity will recover U and Pu during reprocessing. Fission, capture, and activation products are less valuable and generally regarded as waste products. This work determined isotopic ratios that distinguish nuclear weapons and shortened nuclear fuel cycles from commercial nuclear reactors. Modeling of fuel cycles was conducted via ORIGEN-S, MCNPX, and through custom calculations.

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