| 講演要旨(和文) | | フィールドで調査を行う物理探査技術者は，自然放射能探査という分野で，資源探査，活断層探査，温泉探査などに放射能検出器を使用する機会があり，空間放射線量計測の専門家でもある．我々の今回の調査に使用したTCS-172は，温泉探査に使用していたものである．この線量計は，空間線量率30μSv/h以下を正確に測れる今話題の機種で車に取り付け，GPS，GIS技術を用いてカーサーベイを行えば，迅速で広域を正確に測れると考え人工放射能による汚染地域に車で出かけ空間γ線量率を測って福島県内のマッピングを行った。 |
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| | 講演要旨(英文) | | Natural radioactivity prospecting is one of popular geophysical prospective surveys. We did measure gamma radioactivity by car-borne survey in Fukushima prefecture two months after the Fukushima Daiichi accident as a professional of natural radioactive measurements. At the conclusion of this survey, the radiation dose data were interpreted and mapped as contaminated area in Fukushima prefecture. As a result, there are some points of higher radiation dose at a distance from the accident. Specially, we could draw the detailed map of Iidate village shown the points of higher radiation dose. And we recognized the inclination of dirty area in a park. |
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