f The Reactors Are “Cold”, It May Be Because Most of the Hot Radioactive Fuel Has Leaked Out
The Japanese Government and Tepco say that they have achieved a “cold shutdown” of Fukushima nuclear reactors. Specifically, they claim that the water inside the reactors is now below the boiling point.
In reality, no one knows what’s really going on inside the reactors.
A representative of the U.S. Nuclear Regulatory Commission says it doesn’t know what’s going on inside the reactors (video at link).
NHK reports:
At Reactor No. 1 they believe most of the molten fuel has fallen from the pressure vessel to the bottom of the containment vessel where there is no thermometer
The amount of water has not been measured accurately with a water gauge and has only been guessed at
Tepco has installed systems to test for new “criticalities” – i.e. new nuclear reactions – in Reactors No. 1 and 2, but hasn’t done so in No. 3 – so no one can even tell if there are ongoing reactions in No. 3
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