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ãã©ã®ãããå¤ãã¨ããã¨âGreater Danger Lies in Spent Fuel Than in Reactors - NYTimes.com
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Richard T. Lahey Jr., a retired nuclear engineer who oversaw General Electricâs safety research in the early 1970s for the kind of nuclear reactors used in Fukushima, said that the zirconium cladding on the fuel rods could burst into flames if exposed to air for hours when a storage pool lost its water.
One factor that might determine how serious the situation becomes is whether the uranium oxide pellets in the rods stay vertical even if the cladding burns off. This is possible because pellets sometimes become fused together while in the reactor. If the pellets stay standing up, then even with the water and zirconium gone, nuclear fission will not take place, Mr. Albrecht said.
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The government must also stop treating the public like frightened children who cannot be told the truth. If it fails to seize the industry by the scruff of the neck and raise standards, the future of nuclear power in Japan looks bleak.
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Tepco may even end up being nationalised.
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