The Fukushima Daiichi Nuclear Power Plant Accident : OECD/NEA Nuclear Safety Response and Lessons Learnt

This Report Outlines International Efforts To Strengthen Nuclear Regulation, Safety, Research And Radiological Protection In The Post-fukushima Context. It Also Highlights Key Messages And Lessons Learnt, Notably As Related To Assurance Of Safety, Shared Responsibilities, Human And Organisational Factors, Defence-in-depth, Stakeholder Engagement, Crisis Communication And Emergency Preparedness. Executive Summary 7 Introduction  11 Immediate Response By Nea Member Countries  15 -initiating Events 16 -loss Of Safety Functions 18 -accident Management  23 -defence-in-depth 24 -emergency Preparedness And Planning 27 -radiological Protection 28 -post-accident Recovery And Clean-up 29 -regulatory Infrastructure 30 Nea Initial Considerations And Approach 31 Nea Actions In Follow-up To The Fukushima Daiichi Accident  35 -nuclear Regulation 35 --accident Management  35 --defence-in-depth (did) Concept And Implementation  36 --review Of Precursor Events 37 --regulation Of Nuclear Site Selection 37 --crisis Communication 37 -nuclear Safety  38 --human Performance Under Extreme Conditions 38 --filtered Containment Venting 38 --hydrogen Management 39 --robustness Of Electrical Systems 39 --spent Fuel Pool Accident Conditions 40 --risk Analysis For Natural External Hazards 40 --high Seismic Loads On Metallic Components  40 --software Tools For The Estimation Of Fission Product Releases 41 -joint Research Projects  42 --benchmark Study Of The Accident At The Fukushima Daiichi Nuclear Power Plant (bsaf)  43 --hydrogen Mitigation Experiments For Reactor Safety (hymeres) 43 --pwr Transient Tests Under Postulated Accident Scenarios (pkl Phase 3)  44 --advanced Thermal-hydraulic Test Loop For Accident Simulation (atlas) 45 -new Reactors 45 -radiological Protection 46 --radiological Protection Aspects Of The Fukushima Daiichi Npp Accident 46 --nuclear Emergencies  47 --information System On Occupational Exposure (isoe)  48 -support For The Icrp Dialogue Initiative  49 -legal Framework And Liabilities 49 Direct Support To Japan By The Nea 51 Key Messages  53 -assurance Of Safety  53 -shared Responsibilities 53 -human And Organisational Factors 54 -defence-in-depth (did)  54 -stakeholder Engagement 55 -crisis Communication 55 -international Aspects Of Emergency Preparedness 56 -trade And Transport Issues 56 -research And Development 56 -international Co-operation And The Nea Contribution  56 Conclusions 59 Acknowledgements 61 List Of Acronyms And Abbreviations 63 Organisation For Economic Co-operation And Development And Nuclear Energy Agency Bibliographic Level Mode Of Issuance: Monograph English