S******1
发帖数: 1831 | 1 http://news.blogs.cnn.com/2011/03/16/japan-quake-live-blog-deat
[5:54 p.m. ET Wednesday, 6:54 a.m. Thursday in Tokyo] More on the U.S.
Nuclear Regulatory Commission chief's testimony on the "extremely high"
radiation levels at Japan's Fukushima Diiachi nuclear plant: He said spent
fuel rods in a spent-fuel pool in the plant's Unit 4 were exposed, and a
hydrogen explosion resulted earlier this week.
Robert Alvarez, senior scholar at the Institute for Policy Studies, tells
CNN that water had served to both cool the uranium fuel and shield it. But
once the uranium fuel was no longer covered by water, zirconium cladding
that encases the fuel rods heated, generating hydrogen.
That caught fire, resulting in a situation that is "very, very serious,"
Alvarez told CNN. He said the next solution may involve nuclear plant
workers having to take heroic acts. Asked to be more specific, he said, "
This is a situation where people may be called in to sacrifice their lives.
... It's very difficult for me to contemplate that but it's, it may have
reached that point." | j******h
发帖数: 3904 | | h****7
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