[ RadSafe ] RadSafe Digest, Vol 571, Issue 1

[Ed Battle]

Bryan or George; If you have time, would you please comment on the
probability of a "criticality event" in fuel that's only 3 to 5% enriched???
Thanks, Ed Battle



Bryan said:"Looks like they are about to start spraying water from police
water
cannon through a hole in the wall in an attempt to refill the pool (per
NHK report at 7am Japan time).

Bryan'

Bryan, I hope someone tells them A) hot, dry zirc4 rapidly oxidizes in the 
sudden presence of water (H2 given off in quantity and much extra heat) 

and 

B) Powerful jets of water can change the geometry (critical spacing) of fuel

rods, possibly asking for a criticality event.


George Dowell



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