福島核電站泄露過程揭秘-資料下載頁
2025-05-03 08:25本頁面
【正文】 (not Chernobyllike) ? Fission product release in steam = fast Aerosol grows, large fraction falls down in the proximity of the plant ? Main contribution to the radioactive dose outside plant are the radioactive noble gases ? Carried / distributed by the wind, decreasing dose with time ? No ?Fallout“ of the noble gases, so no local high contamination of soil ~20km around the plant ? Evacuations were adequate ? Measured dose up to ? Maybe destruction of crops / dairy products this year ? Probably no permanent evacuation of land necessary The Fukushima Daiichi Incident – Dr. Matthias Braun 28 May 2022 The Fukushima Daiichi Incident 3. Radiological releases ~50km around the plant ? Control of Crop / Dairy products ? Usage of Iodine pills (Caution, pills can interfere with heart medicine) The Fukushima Daiichi Incident – Dr. Matthias Braun 28 May 2022 The Fukushima Daiichi Incident 4. Spend fuel pools Spend fuel stored in Pool on Reactor service floor ? Due to maintenance in Unit 4 entire core stored in Fuel pool ? Dryout of the pools ? Unit 4: in 10 days ? Unit 13,5,6 in few weeks ? Leakage of the pools due to Earthquake? Consequences ? Core melt ?on fresh air “ ? Nearly no retention of fission products ? Large release The Fukushima Daiichi Incident – Dr. Matthias Braun 28 May 2022 The Fukushima Daiichi Incident 4. Spend fuel pools Spend fuel stored in Pool on Reactor service floor ? Due to maintenance in Unit 4 entire core stored in Fuel pool ? Dryout of the pools ? Unit 4: in 10 days ? Unit 13,5,6 in few weeks ? Leakage of the pools due to Earthquake? Consequences ? Core melt ?on fresh air “ ? Nearly no retention of fission products ? Large release The Fukushima Daiichi Incident – Dr. Matthias Braun 28 May 2022 The Fukushima Daiichi Incident 4. Spend fuel pools Spend fuel stored in Pool on Reactor service floor ? Due to maintenance in Unit 4 entire core stored in Fuel pool ? Dryout of the pools ? Unit 4: in 10 days ? Unit 13,5,6 in few weeks ? Leakage of the pools due to Earthquake? Consequences ? Core melt ?on fresh air “ ? Nearly no retention of fission products ? Large release It is currently unclear if release from fuel pool already happened The Fukushima Daiichi Incident – Dr. Matthias Braun 28 May 2022 The Fukushima Daiichi Incident 5. Sources of Information Good sources of Information ? Gesellschaft f252。r Reaktorsicherheit [] ? Up to date ? Radiological measurements published ? German translation of japanese/englisch web pages ? Japan Atomic Industrial Forum [] ? Current Status of the plants ? Measurement values of the reactors (pressure liquid level) ? Tokyo Electric Power Company [] ? Status of the recovery work ? Casualties May too few information are released by TEPCO, the operator of the plan
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