RE: Question About Historical Criticality Accident

["Frame, Paul" <FrameP@orau.gov>]

> The Nuclear Criticality Information report (DOE/NCT-04, March 1989)
contains a revised version of "A Review of Criticality Accidents" 
> (TID-4500).  In that revised report it lists three early criticality
accidents as follows:
> 
> June 6, 1945 - pseudosphere of uranium cubes, water 
> reflected, local control

Hmmmmm.   I have a copy of a letter dated July 6 1945 that identifies this
accident as having occurred 11:30 AM Monday June 4, 1945

Paul Frame
Professional Training Programs
ORAU
framep@orau.gov
http://www.orau.gov/ptp/ptp.htm
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