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- Title
Development of prediction models for radioactive caesium distribution within the 80-km radius of the Fukushima Daiichi nuclear power plant.
- Authors
Kinase, Sakae; Takahashi, Tomoyuki; Sato, Satoshi; Sakamoto, Ryuichi; Saito, Kimiaki
- Abstract
Preliminary prediction models have been studied for the radioactive caesium distribution within the 80-km radius of the Fukushima Daiichi nuclear power plant. The models were represented by exponential functions using ecological half-life of radioactive caesium in the environment. The ecological half-lives were derived from the changes in ambient dose equivalent rates through vehicle-borne surveys. It was found that the ecological half-lives of radioactive caesium were not constant within the 80-km radius of the Fukushima Daiichi nuclear power plant. The ecological half-life of radioactive caesium in forest areas was found to be much larger than that in urban and water areas.
- Subjects
JAPAN; FUKUSHIMA Nuclear Accident, Fukushima, Japan, 2011; NUCLEAR power plant accidents; TOXICOLOGY of radioactive substances; CESIUM isotopes; NUCLEAR energy &; the environment
- Publication
Radiation Protection Dosimetry, 2014, Vol 160, Issue 4, p318
- ISSN
0144-8420
- Publication type
Article
- DOI
10.1093/rpd/ncu014