Berlin 2008 – scientific programme

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AKA: Arbeitskreis Physik und Abrüstung

AKA 3: Nuclear Testing and Test Ban

AKA 3.7: Talk

Thursday, February 28, 2008, 12:30–13:00, H 0112

Global radioxenon emission inventory in support of CTBT monitoring — •Matthias Tuma and Martin Kalinowski — Carl Friedrich von Weizsäcker Centre for Science and Peace Research, Beim Schlump 83, 20144 Hamburg

The monitoring of atmospheric radioxenon is a crucial element in the verification of the Comprehensive Nuclear-Test-Ban Treaty (CTBT). However, each nuclear power reactor inevitably is a legitimate source of these radioactive fission gases. In order to support the interpretation of observed atmospheric concentrations, a global emission inventory of radioxenon as produced by nuclear power plants has been estimated. It derives generic emission strengths from a data set of quarterly and annual emission reports of European and North American nuclear power plants. These are in turn used to estimate emissions of reactors for which no data were available. The inventory provides values for continuous and pulse emissions for all four relevant radioxenon isotopes, utilizable as source terms in atmospheric transport models. Regional totals, isotopic ratios and batch emission characteristics are presented as well.