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A nuclear power plant in Byron, Illinois. Taken by photographer Joseph Pobereskin (http://pobereskin.com). カレンダー
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Latest Posts / 最新記事
- Revealed: how a San Francisco navy lab became a hub for human radiation experiments via The Guardian 2024/11/26
- Australia declines to join UK and US-led nuclear energy development pact via ABC News 2024/11/20
- Australia mistakenly included on list of countries joining US-UK civil nuclear deal, British government says via The Guardian 2024/11/20
- 被ばく研究の灯は消さない 国や自治体が「風化待ち」の中、独協医科大分室が移転してまで続ける活動の意義via東京新聞 2024/10/05
- Chernobyl-area land deemed safe for new agriculture via Nuclear Newswire 2024/09/26
Discussion / 最新の議論
- Leonsz on Combating corrosion in the world’s aging nuclear reactors via c&en
- Mark Ultra on Special Report: Help wanted in Fukushima: Low pay, high risks and gangsters via Reuters
- Grom Montenegro on Duke Energy’s shell game via Beyond Nuclear International
- Jim Rice on Trinity: “The most significant hazard of the entire Manhattan Project” via Bulletin of Atomic Scientists
- Barbarra BBonney on COVID-19 spreading among workers on Fukushima plant, related projects via The Mainichi
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Tag Archives: SPEEDI(緊急時迅速放射能影響予測ネットワークシステム)
SPEEDI、原発事故の避難判断に使わず 規制委方針 via 朝日新聞
原発などで重大事故が起きた際に放射性物質の広がりを予測する「SPEEDI(スピーディ)」(緊急時迅速放射能影響予測ネットワークシステム)について、原子力規制委員会は8日、住民避難などの判断に使わない運用方針を決めた。すでに、放射線量の実測値をもとに判断する態勢に転換しているが、SPEEDIの使い方があいまいで、避難計画を作る自治体から明確化を求められたためだ。 東京電力福島第一原発事故では、予測のもとになる原子炉などの情報が得られないなか、初期の住民避難に活用されず問題になった。規制委は昨年2月に原子力災害対策指針を改め、重大事故が起きた段階で5キロ圏内は即避難、30キロ圏は屋内退避したうえで、周辺のモニタリングポストによる放射線量の実測値をもとに避難などの判断をすることにした。 事故前、避難の指標とすると位置づけられていたSPEEDIは、「参考情報」に格下げされた。だが、使い方は具体的に示されておらず、予測結果を避難の判断に使えると受け止める自治体もあった。 この日に決めた運用方針で、避難の判断以外の使い方を示すことを明記。放射性物質の放出が収まった後、放射性ヨウ素などの被曝(ひばく)線量の事後評価などの例を示す。対策指針に基づくマニュアルは、重大事故発生時にSPEEDIで計算を始め、結果を公表するとしているが、混乱を招くおそれがあることから、計算自体しないよう修正する。 続きはSPEEDI、原発事故の避難判断に使わず 規制委方針