Intercomparison of in situ gamma spectrometry was organized at a site contaminated by the radioactive fallout that originated from the Fukushima Dai-ichi Nuclear Power Plant accident. This intercomparison was conducted by eight teams from four different institutions, which have contributed to the government-led project to construct distribution maps of radionuclides deposited on the ground soil. The resultant 134 Cs and 137 Cs inventories evaluated by the participants agreed within 6% of the coefficient of variation, after correction for inhomogeneous distribution of the dose rate in air. The evaluated 40 K inventories agreed within 4% of the coefficient of variation. The authors estimated that these results were in good agreement for creating distribution maps of the radionuclide inventory in the ground soil.
CITATION STYLE
MIKAMI, S., SATO, S., HOSHIDE, Y., SAKAMOTO, R., OKUDA, N., & SAITO, K. (2015). In Situ Gamma Spectrometry Intercomparison in Fukushima, Japan. Japanese Journal of Health Physics, 50(3), 182–188. https://doi.org/10.5453/jhps.50.182
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