Fission product isotope ratios as event characterization tools– Part II: Radioxenon isotopic activity ratios

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Abstract
Air sampling for radioxenon has been recommended as part of the verification system for a Comprehensive Nuclear-Test-Ban Treaty. Xenon isotopic activity ratios are used as a basis for confirming nuclear detonation, and discriminating between nuclear reactor accidental release and nuclear explosion. The primary purpose of this work is to use the available data on explosions, accidental reactor releases and laboratory experiments and simulations, in order to define the most probable scenarios for nuclear reactor accidental release, and for emission from underground nuclear detonations, to calculate the relevant radioxenon isotopic activity ratios in each scenario and to assess their use as event characterizing tools.

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