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Development of Robot “PMORPH” for Investigation inside Unit 1 Primary Containment Vessel (PCV) (Investigation outside Pedestal Basement: B2 Investigation) [Developed by IRID and Hitachi GE Nuclear Energy] (February 3, 2017)

Feb.03,2017

The “PMORPH”, developed by IRID and Hitachi-GE Nuclear Energy, was presented to the media on February 3. The device, equipped with a dosimeter and underwater camera, will be used to investigate outside the Unit 1 pedestal basement in the PCV, in which fuel debris may have spread to, towards decommissioning TEPCO’s Fukushima Daiichi Nuclear Power Station (NPS).

Full-scale Testing of Technology for Repairing PCV Leakage Points
Full-scale Testing of Strengthening Technology for Suppression Chamber (S/C) Support Columns [IRID/Hitachi GE Nuclear Energy] (November 29, 2016)

Nov.29,2016

IRID is engaged in ongoing development of technology for repairing leakage points in the Primary Containment Vessel (PCV) under a project sponsored by the Ministry of Economy, Trade and Industry (METI) for the FY2016-2017 period towards the decommissioning of the Fukushima Daiichi Nuclear Power Station.

Development of Repair Technology for Water Leakage Sections in PCV Testing Concrete Injection Technology for Water Leak Stoppage Treatment inside Suppression Chamber Using Full-Scale Mock-up Facility [Led by TOSHIBA]. (October 15, 2016)

Oct.15,2016

IRID is advancing the development of repair technology for water leakage sections in the Primary Containment Vessel (PCV) under a project led by Ministry of Economy, Trade and Industry (METI) in FY 2016-FY 2017 towards the decommissioning of the Fukushima Daiichi Nuclear Power Station (NPS). As a part of this project, a method of injecting concrete to repair water leakage points inside suppression chamber (S/C), a structure that lies at the lower part of the PCV, is currently being examined.

Completion of Preparation for Full-Scale Test Facility Simulating the Lower Part of the PCV and Future Test Plans (October 13, 2016)

Oct.13,2016

A full-scale mock-up facility* is now ready for testing purposes to establish technology for repairing water leakage points in the lower part of the Primary Containment Vessel (PCV).

* This test facility simulates vent pipes, the suppression chamber (S/C), and torus room wall found in the lower part of the PCV in Fukushima Daiichi Nuclear Power Station (NPS) Unit 2. The facility is of full-scale size, but represents a 1/8 portion of the circular S/C.

Improved Robot for Investigation inside the Primary Containment Vessel (Scorpion Robot) [Developed by TOSHIBA CORPORATION] (Feb. 18, 2016)

Feb.18,2016

IRID plans to deploy an improved remotely-operated robot (scorpion robot) to investigate inside the Primary Containment Vessel (PCV) at the Fukushima Daiichi Nuclear Power Station Unit2 as soon as it completes on-site preparations, including investigation and decontamination work around a penetration that is to be used as an insertion opening through which the investigation robot will be inserted.

[Videos] Operations Training for Investigation inside the Primary Containment Vessel (PCV) at the Fukushima Daiichi Nuclear Power Station (NPS) Unit 2 and Equipment for Preliminary Investigation inside the Pedestal and Deposit Removal Equipment (Oct. 14, 2015)

Oct.14,2015

The inside of the PCV at the Fukushima Daiichi NPS Unit 2 is to be investigated by deploying the remotely-operated robot (scorpion robot) in place as soon as on-site preparations are completed, including investigation of the periphery of the penetration through which the investigation robot will be inserted.
Below are five videos, including one showing TOSHIBA CORPORATION, an IRID member, conducting training in preparation for the investigation inside the PCV this summer.