Newly released neutron data from three University of California San Diego scientists confirms Fairewinds’ April analysis that the nuclear core at Fukushima Daiichi turned on and off after TEPCO claimed its reactors had been shutdown. This periodic nuclear chain reaction (inadvertent criticality) continued to contaminate the surrounding environment and upper atmosphere with large doses of radioactivity.
In a second area of concern, Fairewinds disagrees the NRC’s latest report claiming that all Fukushima spent fuel pools had no problems following the earthquake. In a new revelation, the NRC claims that the plutonium found more than 1 mile offsite actually came from inside the nuclear reactors. If such a statement were true, it indicates that the nuclear power plant containments failed and were breached with debris landing far from the power plants themselves. Such a failure of the containment system certainly necessitates a complete review of all US reactor containment design and industry assurances that containments will hold in radioactivity in the event of a nuclear accident. The evidence Fairewinds reviewed to date continues to support its April analysis that the detonation in the Unit 3 Spent Fuel pool was the cause of plutonium found off site.