tag:blogger.com,1999:blog-6837395046523710681.post2882384689365289042..comments2023-06-08T02:54:54.198-07:00Comments on the Truth: FUKUASHIMA problems are not going away any time soonjuleshttp://www.blogger.com/profile/02966020433358975052noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-6837395046523710681.post-16310464885066897442011-08-18T13:26:37.399-07:002011-08-18T13:26:37.399-07:00If the fuel has melted into a lump at the bottom o...If the fuel has melted into a lump at the bottom of the core then it is less likely to go critical again. This is becuase the fuel will have been diluted by mixing with other materials in the core. Also it makes it harder for the water to moderate the neutrons. In general systems which contain water, graphite or berylium are more easy to get to go critical than a mixture which does not contain high levels of these substances.Anonymousnoreply@blogger.com