Radioactivity measurements of green tea leaves from Japan after the Fukushima incident
A series of 32 green tea leaves samples from different Asian producers were analyzed by direct {\gamma}-ray spectrometry at the PRISNA facility in Bordeaux. All the samples contain about 500 Bq/kg of 40K and 10 Bq/kg of 210Pb. As expected, most of the recent Japanese samples contain also the 137Cs a...
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Zusammenfassung: | A series of 32 green tea leaves samples from different Asian producers were
analyzed by direct {\gamma}-ray spectrometry at the PRISNA facility in
Bordeaux. All the samples contain about 500 Bq/kg of 40K and 10 Bq/kg of 210Pb.
As expected, most of the recent Japanese samples contain also the 137Cs and
134Cs radio-isotopes, whose activity distributions are studied as a function of
the geographical origin in order to get an insight on the outspread and fallout
of radionuclides stemming from the 2011 Fukushima Dai-ichi Nuclear Power Plant
incident. |
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DOI: | 10.48550/arxiv.1806.10070 |