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Published on: December 14, 2017
Global radioxenon emission inventory based on nuclear power reactor reports
Martin B Kalinowski1, Matthias P Tuma
1Carl Friedrich von Weizsäcker Center for Science and Peace Research, University of Hamburg, Beim Schlump 83, 20144 Hamburg, Germany. martin.kalinowski@uni-hamburg.de
This study created the first global inventory of radioxenon emissions from nuclear power plants. These emissions are crucial for verifying the Comprehensive Nuclear-Test-Ban Treaty by distinguishing them from nuclear explosions.
Area of Science:
- Nuclear physics and environmental monitoring
- Radiochemistry and atmospheric science
- International treaty verification
Background:
- Atmospheric radioactivity monitoring is essential for Comprehensive Nuclear-Test-Ban Treaty verification.
- Xenon isotopes (131mXe, 133Xe, 133mXe, 135Xe) are key indicators of nuclear explosions.
- Quantifying civilian radioxenon emissions improves treaty-relevant interpretation.
Purpose of the Study:
- To develop the first global radioxenon emission inventory for nuclear power plants.
- To estimate emissions for sites lacking direct reporting.
- To provide a baseline for distinguishing civilian releases from clandestine nuclear activities.
Main Methods:
- Compilation of North American and European emission reports (1995-2005).
- Estimation of emissions for power plant sites with unavailable data.
- Development of a global inventory based on reported and estimated data.
Main Results:
- The study presents the first global radioxenon emission inventory for nuclear power plants.
- An estimated 1.3 PBq of radioxenon isotopes are released annually by nuclear power plants.
- Emissions include both continuous and pulsed releases.
Conclusions:
- Nuclear power plants are a significant source of atmospheric radioxenon.
- This inventory enhances the ability to interpret atmospheric radioactivity data for treaty verification.
- Understanding civilian emissions is critical for effective monitoring of nuclear activities.
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