Report of Japanese Government to the IAEA Ministerial Conference on Nuclear Safety; The accident at TEPCO's Fukushima Nuclear Power Stations; Attachment IV-3
2-2-5 Containment system
Nitrogen gas injection system for Primary Containment Vessel (Attachment)
Fukushima Daiichi NPS Unit 1testing of changes in nitrogen injection
Results of the second soundness inspection of Unit 4 Reactor Building at Fukushima Daiichi Nuclear Power Station
Inside of the Primary Containment Vessel, Unit 2 (7) [pictured on January 19, 2012]
Inside of the Primary Containment Vessel, Unit 2 (6) [pictured on January 19, 2012]
Inside of the Primary Containment Vessel, Unit 2 (5) [pictured on January 19, 2012]
Inside of the Primary Containment Vessel, Unit 2 (4) [pictured on January 19, 2012]