Online ISSN: 1884-4111 Print ISSN: 0033-8303
Radioisotopes 65(5): 211-219 (2016)


東京電力福島第一原子力発電所事故4年後の福島にみられる高濃度放射性セシウム汚染マツカサの識別Distinction of High Radiocaesium Contaminated Pinecones After Four Years the Accident at TEPCO’s Fukushima Daiichi Nuclear Power Plant

福島学院大学短期大学部Faculty of Short School, Fukushima College ◇ 960–0181 福島県福島市宮代字乳児池1–1 ◇ 1–1 Miyasiro-Chigoike, Fukushima-shi, Fukushima Pref. 960–0464, Japan

受付日:2015年8月27日Received: August 27, 2015
受理日:2016年3月9日Accepted: March 9, 2016
発行日:2016年5月15日Published: May 15, 2016


Radiocaesium pollutants on the pinecones contaminated were measured by a germanium semiconductor detector and autoradiography in 2013–2015. The 137Cs concentration of gray pinecone in 2015 around Fukushima Prefecture was high and they were weak correlations between the dose rate map of November, 2011 and some strongly spot were shown in the autoradiography. It was thought that the falling gray pinecones of Pinus densiflora were including high radiocaesium pollution in Northern Fukushima Prefecture after 2015 for a while.

Key words: craft material; Fukushima; gray pinecone; high concentration; imaging plate; radiocaesium; stem segment

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