MIRAI MR11-05 Leg2 Cs-134 and Cs-137 radioactivity of sea waters

Last Modified: 2014-03-06
: MR11-05 Leg2
: Processed (PI)
: JAMSTEC
:
:
Cs-134 and Cs-137 radioactivity of sea waters (decay correction to sampling date)

For Using Data

Seiya NAGAO (Institute of Nature and Environmental Technology, Kanazawa University)
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Instrument:
coaxial Ge detector
Instrument Information:
Cs-134 and Cs-137 were concentrated onto ammonium molybdophosphate (AMP) for 20 l of raw river waters. The radioactivity of Cs-134 and Cs-137 was measured for the AMP/Cs compound using gamma-ray spectrometry with low background Ge detectors (GEM-251855 of ORTECĀ® and other similar models) equipped with a multichannel analyzer (Model 7700 of SEIKO EG&G Co. Ltd. and other similar models). The cascade summing effect was corrected for Cs-134 using a Fukushima contaminated soil sample. Decay correction of radioactive concentration for Cs-134 and Cs-137 was done at each sampling date.
Seawater
MR11-05 Seawater Radioactivity
Excel format
: MR11-05 Leg2
: Processed (PI)
: JAMSTEC
:
:

Observation Map

Imagery reproduced from ...

Data List

  File names
MR1105Data.xlsx

Related Information

Update History

2014-03-06
An observation data was registerd.
2014-02-28
An observation data was registerd.