1. National Diet of Japan Fukushima Nuclear AccidentIndependent Investigation Commission

2. 12 8 3. 3 5 7 10 10 20 23 24 24 26 45 46 2 52 3 58 481 5 88 98 4. 3 1950 1970 10 3.11 Regulatory Capture 50 3.11 50 18 5. 100 6. 1 232011 10 30 10 12 8 2 13 31 4 http://law.e-gov.go.jp/htmldata/H23/H23HO112.html2 12 3 3 http://www.shugiin.go.jp/index.nsf/html/index_kaigiroku.htm 7. 1167 900 3 400 12 1 633 8066 431 2320113 11 2415 3 2000 19 38 1 4 60 80 Facebook4http://naiic.go.jp 8. Twitter 17 16 10 10 9. 232011 3 11 24 2012 6 232011 3 11 3.113.11 182006 212009 6 282016 1 10. 1 3 5 1 3 182006 51993IAEA 5 5 5 3 9.11 B.5.b6 3.115IAEA Defence in Depth6 132001 9 11 142002 2 NRC 11. 7 7 Regulatory Capture 12. IAEA 1 LOCAJNES1 1 SR 1 LOCA 1 IC 13. SBO IC IC IC 4 2 RCIC2 3 2 4 14. 15 1 3 14 2 15. 3km 21 23 2010km 15 12 3 12 5 44 4 15 100 Sv 167 1800km2 5mSv 1 1 16. 45 6 17. 2 18. 7 7 19. 20. 21. 22. 16 23. 232011 3 11 INES8 7 1 2 3 4 6 1 3 66kV 1 M/C D/G 1 2 4 6 1 1 2 4 3 5 SBO 3 3 13 34 9 10 8 INESInternational Nuclear Event Scale IAEA 9 2 24. 1234 14 46 D/GICRCICRCICIC15 37 SBO 18 10 18 50 5 46 11 : 36 RCIC12 : 35 HPCI 14 30 15 36 19 04 2 42 HPCI9 10 9 20 9 25 10 40 3SGTS13 12 11 01 13 25 RCIC17 00 19 20 19 : 54 6 : 00 S/C6 : 00 MAAP 10 242012 3 30 25. 232011 3 11 . 232011 3 11 1 3 40 265GalGal 561981 182006 202008 3 5 Ss 600Gal 7 1 4 6 212009 5 212009 6 282016 1 1 3 26. 5 5 1 3 1 . . Ss 3.11 . 40 182006 3 27. . SA SA SA 31991 AM SA SA SA 222010 SA 28. . 1M/C M/C P/C 1 M/C M/C3 P/C P/C 1 7 3 SBO IC 134 2 56 23 4 5 29. . IAEA 30 50 LOCA JNES LOCA LOCA 10 t 15 27 2 15 30. 35 1.5km 1 2 1 A 1 4 IC 2 IC 5 ICAB2 1 14 52 11 1 IC 2 55 / IAEA IC IC IC 1SR 2 3 2 SR 1 1 SR 1 SR 1 LOCA 31. . 2 ERC 1 2 32. . 33. 5 . 15 2 5 5 1 5 12 2 5 5 34. . . . . 35. 2 30 3 24 1 3 15 . 5 3 12 5 44 10 20 36. . 6 1 900PBq 1800 5mSv 3 1 4000 4 242012 6 1mSv 57.01mSv 10mSv 42.310mSv 0.7 . 15 3km 10km 20km 20km 37. 3 60 3 15 20 30km 3 25 30km 3 23 SPEEDI 1 . 182006 192007 192007 SPEEDI 38. ERSSSPEEDI ERSS SPEEDI ERSS SPEEDI ERSS SPEEDI ERSS SPEEDI SPEEDI . 39. . 40. . . SA 41. SA 5 . SA 42. 2 3 14 23 0 19 21 2 3 14 8 3 . 43. . Defence in Depth 44. 1 2 3 4 5 45. 1 11 156 32 166 36 223 23 46. 1F Fukushima Daiichi 2F Fukushima Daini AM Accident Management AO Air Operated Valve ARIAlternative Rods Injection ATWS Anticipated Transient Without ScramB-DBABeyond Design Basis Accident BAFBottom of Active FuelBWRBoiling Water ReactorCAMS Cont a i n ment Atomosphere Monitoring SystemCCICore-Concrete InteractionCRDControl Rod DriveCV Containment Vessel VentD/GDiesel Generator D/WDry-Well DBADesign Basis AccidentDGSW Diesel Generator Sea Water SystemECCS Emergency Core Cooling System EECW Emergency Equipment Cooling WaterEOPEmergency Operating Procedures ERCEmergency Response CenterERSS Emergency Response Support SystemFACFlow-Accelerated Corrosion FTAFault Tree AnalysisHCUHydraulic Control System HPCI High Pressure Coolant Injection SystemHPCS H ig h P re s su re C ore Spr ay SystemHVAC Heating Ventilating and Air Conditioning SystemIA Instrument Air systemIAEA International Atomic Energy AgencyIC Isolation CondenserICRP International Commission on Radiological ProtectionINES The International Nuclear and Radiological Event ScaleIPEIndividual Plant Examination IPEEEIndividual Plant Examination for External EventsJAEA Japan Atomic Energy Agency 47. JNESJapan Nuclear Energy Safety Organization LB-LOCA Large Break LOCA LOCALoss Of Coolant Accident LPCILow Pressure Coolant Injection System M/C Metal-Clad Switch Gear MAAPModular Accident Analysis Program MB-LOCA Medium Break LOCA MCC Motor Control Center MOX Mixed Oxide Fuel MO Motor Operated valve MPMonitoring Post MSIVMain Steam Isolation Valve MUWCMake-Up Water Condensate system NISANuclear and Industrial Safety Agency NRC Nuclear Regulatory Commission P/C Power Center PSA Probabilistic Safety Assessment PSR Periodic Safety Review RCICReactor Core Isolation Cooling System RHR Residual Heat Removal System RHRCResidual Heat Removal Cooling System RHRSResidual Heat Removal Sea Water System RPT Recirculation Pump Trip RPV Reactor Pressure Vessel S/C Suppression Chamber SASevere Accident SB-LOCA Small Break LOCA SBO Station Blackout SCC Stress Corrosion Cracking SGTSStandby Gas Treatment System SHC Shutdown Cooling System SLC Standby Liquid Control System SOP Severe Accident Operating Procedures SPEEDISystem for Prediction of Environmental Emergency Dose Information SR Safety Relief Valve T/B Turbine Building TAF Top of Active Fuel UHS Ultimate Heat Sink WBC Whole Body Counter WHO World Health Organization 48. HPCI ICINESIAEA 7LOCA Loss Of Coolant AccidentRCICS/C SBO SR Gy/h / Gy 1 kg cpm 1 49. Sv 2 SA - IAEA 5 2 2 1 Gy 20 Sv 1 Gy 1 Sv 2 50. B.5.b 132001 9 11 142002 NRC Bq1 51. 2 1. 2. 3. 4. 52. 5. 6. 7. 8. 53. 9. J-ALERT 10. PAZ 20km 30km 11. 20km 12. 54. 13. 14.15.1 4 1234 55. 5 4 5 6 4 16. 1 2003 2010 NRC 2001 2009 2010 IAEA 2011 2B.5.b 9-11 2002 2 25 NRC B.5.b 1 56. 2 3 4 5 678 57. 3 http://naiic.go.jp 1 231219 2 24 116 : 3 24 130 4 24 215 16 5 24 227 A 6 24 314 7 24 319 8 24 328 9 24 418 10 24 421 11 24 422 12 24 514 13 24 516 16 14 24 517 15 24 527 16 24 528 17 24 529 18 24 68 19 24 69 58. 1 231219 12 18 12 19 9 59. 2 24116 SPEEDI 1 2 3 60. 3 24130 SPEEDI mSv 61. 4 24215 16 39(1964) 62. 524227 (NRC) INPO NRC 63. 6 24314 182006 142002 64. 7 24319 65. 8 24328 IAEA 5 3 IAEA 66. 9 24418 67. 10 24421 11 24422 11 12 10km 20km SPEEDI SPEEDI 11 19 PTA PTA 68. 4 69. 12 24514 70. 13 2451616 2006 9 B.5.b B.5.b 2011 6 18 3 71. 14 24517 3 5 6 SPEEDI 72. 1 1 2 3 4 5 73. 15 24527 74. 16 24528 2 1 2 15 75. 76. 17 24529 3 2010 SPEEDI 2 3 3 5 5 3 SPEEDI 77. 18 2468 78. 19 2469 2 1 2 3 4 79. 5 SPEEDI SPEEDI 6 4 5 80. 4 81. 82. 83. 84. 85. 86. 87. 5 1986 1965 6 2004 12 M9.1 M8.6 M8.6 10 88. 3.11 3.11 17 6 22 JR 53 24 89. 54 2 90. 3 1 26 54 ICRP . . 91. J 92. 3.11 10 10 93. 3.11 3.11 2006 94. The Theory of Economic Regulation 95. 11 96. 97. 1969 1979 UCLA 1983 2003 07 2006 08 WHO 2005 09 Health and Global Policy Institute Chair and Founder, IMPACT Foundation Japanhttp://www.kiyoshikurokawa.com/1973 1996 2008 1967 HICARE1974 98. 2002 9 SSDI 99. 100-0014 1 7 1 03-3581-5111http://naiic.go.jp2012