Study says nuclear fuel at Fukushima reactor possibly melted twice, Kyodo, August 9, 2011:
[...] “I presume that the fuel fell to the bottom of the containment vessel made of concrete and reacted violently with its cement, releasing large amounts of radioactive materials into the outside from the pressure vessel,” said [Fumiya Tanabe, an expert in nuclear safety].
TEPCO, meanwhile, casts doubt on Tanabe’s assertion, saying most of the fuel probably remains inside the reactor’s pressure vessel as temperature fluctuations were observed depending on the amount of water injected into it.
Published: August 9th, 2011 at 7:44 am ET
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