2013年2月28日木曜日

radioactive contamination with caesium (Cs-137, Cs-134) from fukushima found in tokyo soil.

radioactive contamination with caesium (Cs-137, Cs-134) from fukushima found in tokyo soil.




アップロード日: 2011/09/03
see 5:25 and 9:45 for the summary of findings!
seen in this video is a gamma spectrum, performed with a high-purity germanium detector.
in a 50 grams sample of soil (drain / gutter of streets) from the sagamihara area west of tokio (250 km from fukushima daiichi nuclear power plant), significant amounts of the synthetic caesium isotopes Cs-137 and Cs-134 were found. these manmade isotopes are from fukushima - unless there was another, yet unknown incident... meaning the contamination spread quite far.

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