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Published on May 4, 2011
In this Unit-3 update the fact that Unit 1 had weaker upper-deck walls is considered as a possible causal factor in the differences between the Unit 1 and 3 explosions. Also considered is how the stronger walls of Unit 3 might have helped a hydrogen explosion initiate a prompt criticality.
# Contrary to conventional theory, it may be the case that nuclear power plants can have nuclear explosions. Recent findings indicate the Chernobyl explosion may have been driven by an explosive release of nuclear energy, not a hydrogen explosion are previously assumed. These important findings were reported in a paper in 'Pure and Applied Geophysics'
"The alternative version [ of how Chernobyl exploded ] is based on the assumption of a large instant energy release of nuclear energy. Convincing evidence in favor of this version was for the first time obtained by Radium Institute employees on the basis of an analysis of atmospheric xenon radionuclide samples collected in the area of Cherepovetz and of the analysis of the value of 133Xe/133mXe isomers activity ratios. [...] it should be acknowledged that the hypothesis of a nuclear mechanism of enormous instant energy yield in the Chernobyl accident seems quite convincing, as is supported by experimental data; these data are in good agreement with the calculated results."