FUKUSHIMAいのちの最前線

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第4章患者救済に奔走した活動記録〈論文・研究発表〉FUKUSHIMA いのちの最前線497T. KOBAYASHIand shoes-soles of students after exercise of sports in the ground of the campus.RESULTS1. Radiation surveillance right after the magnitude 9.0 earthquake From the beginning stage of the power plant crisis, Associate Dean, School of Medicine, Professor H. Yaginuma emitted the information of radiation surveillance, acquired from his teams, to FMU staff. In particular, outdoor gamma radiation results were reported on a bulletin board up to the present. Maximum of the observed value was 11.9μSv/h at 11 : 30 on the 16th of March, 2011. The outdoor gamma values are around 0.4 μSV/h nowadays. Ward surveys were not announced officially, however ward members were able to have no worries about indoor radiation. Patients screening services at the entrance of the hospital continued until the 25th of March, 2011. People whose cps exceeded 10,000 cpm were required decontamination at the Fig. 2. Change of atmospheric radon concentration after the magnitude 9.0 earthquake in a room of the Ra-dioisotope Center. CPRD means continuous passive radon detector (Pylon, AB-5).Fig. 1. Serial gamma radiation measurements in air with sodium iodide (NaI) scintillation counter before and after the magnitude 9.0 earthquake, tsunami, and subsequent nuclear power plant crisis. Results were stored every 4 hours as the average cps from the accumulated counts. Measured place was Fuku-shima Medical University Department of Natural Sciences (Physics) professor's office. Radiation surveil-lance is a routine activity of this department.

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