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Detection of 133Xe from the Fukushima nuclear power plant in the upper troposphere above Germany

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons31050

Simgen,  Hardy
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30261

Arnold,  Frank
Frank Arnold - Atmospheric Trace Gases and Ions, Research Groups, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30647

Kaether,  Florian
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30766

Lindemann,  Sebastian
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Volltexte (frei zugänglich)

1309.1618.pdf
(Preprint), 981KB

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Zitation

Simgen, H., Arnold, F., Aufmhoff, H., Baumann, R., Kaether, F., Lindemann, S., et al. (2014). Detection of 133Xe from the Fukushima nuclear power plant in the upper troposphere above Germany. Journal of Environmental Radioactivity, 132, 94-99. doi:10.1016/j.jenvrad.2014.02.002.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0014-73DE-B
Zusammenfassung
After the accident in the Japanese Fukushima Dai-ichi nuclear power plant in March 2011 large amounts of radioactivity were released and distributed in the atmosphere. Among them were also radioactive noble gas isotopes which can be used as tracers to probe global atmospheric circulation models. This work presents unique measurements of the radionuclide $^{133}$Xe from Fukushima in the upper troposphere above Germany. The measurements involve air sampling in a research jet aircraft followed by chromatographic xenon extraction and ultra-low background gas counting with miniaturized proportional counters. With this technique a detection limit of the order of 100 $^{133}$Xe atoms in liter-scale air samples (corresponding to about 100 mBq/m$^3$) is achievable. Our results proof that the $^{133}$Xe-rich ground level air layer from Fukushima was lifted up to the tropopause and distributed hemispherically. Moreover, comparisons with ground level air measurements indicate that the arrival of the radioactive plume in Germany in high altitude is several days earlier than on ground.