The press conference in FCCJ


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Press conference at FCCJ

Internal Radiocesium Contamination of Adults and Children in Fukushima

12:00-13:30, Thursday, April 25, 2013
早野 龍五  東京大学大学院 理学系研究科教授




Physicist Ryugo Hayano studies exotic atoms and nuclei by detecting and analyzing the radiation and other signals they emit. Immediately after the Fukushima Daiichi Nuclear Power Plant explosions, he started applying those skills to studying the radiation exposure of Fukushima area residents. Using sophisticated detectors and whole body scanners, Hayano and his colleagues have measured the internal radiation exposure of over 32,000 Fukushima residents. Their results, published in a recentscientific paper, indicate that as of November 2012, very few adults and none of some 1,383 school children tested had detectable levels of radioactive cesium in their bodies. This indicates that actual exposures are far lower than had been estimated based on studies of the Chernobyl accident. At this professional luncheon, Hayano will discuss the results of his studies and their implications for human health.

Hayano is a Todai graduate and the leader of a particle physics experiment being conducted at CERN, the European Laboratory for Particle Physics. He won the 2008 Nishina Memorial Prize, Japan's most prestigious physics award, for his study of antiprotonic helium atoms. He will be joined at the head table by his research collaborator Masaharu Tsubokura, a medical doctor and University of Tokyo professor who has been volunteering his time to treat patients at hospitals within the Fukushima 30kilometer cautionary zone. He will be available to answer questions.