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On 29 March, Richard Lahey, former head of safety research for boiling-water reactors at General Electric, speculated that the reactor core may have melted through the reactor containment vessel onto a concrete floor, raising concerns of a major release of radioactive material, while failing to divulge the report by Dale G. Bridenbaugh which ...
It's estimated that the reactors as a whole will take 30–40 years to be decommissioned. [111] On August 1, 2013, the Japanese Industry Minister Toshimitsu Motegi approved the creation of a structure to develop the technologies and processes necessary to dismantle the four reactors damaged in the Fukushima accident. [112]
The Fukushima nuclear accident was a major nuclear accident at the Fukushima Daiichi Nuclear Power Plant in Ōkuma, Fukushima, Japan, which began on 11 March 2011. The proximate cause of the accident was the 2011 Tōhoku earthquake and tsunami , which resulted in electrical grid failure and damaged nearly all of the power plant's backup energy ...
The operator of Japan's destroyed Fukushima Daiichi nuclear power plant demonstrated Tuesday how a remote-controlled robot would retrieve tiny bits of melted fuel debris from one of three damaged ...
Unlike the other five reactor units, reactor 3 ran on mixed core, containing both uranium fuel and mixed uranium and plutonium oxide, or MOX fuel (with the core being approximately 6% MOX fuel [5]), during a loss of cooling accident in a subcritical reactor MOX fuel will not behave differently from UOX fuel. The key difference between plutonium ...
A magnitude 9.0 earthquake and tsunami on March 11, 2011, damaged the Fukushima Daiichi plant’s cooling systems, causing three of its reactors to meltdown, releasing radiation and driving ...
A robot has, for the first time since the 2011 meltdown, retrieved a piece of radioactive fuel from the tsunami-ravaged Fukushima Daiichi nuclear power plant.. The remote-controlled robot, named ...
Temperatures in the containment vessels were 38.9 degrees Celsius for reactor one, 67.5 degrees for reactor two, and 57.4 degrees for reactor 3. [268] This announcement failed to lay to rest substantial concerns arising from TEPCO's inability to directly measure temperatures at the bottoms of the containment vessels, and the fact that the site ...