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U.S. Department of Energy
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IRREPARABLE BIOLOGICAL DAMAGE AND ITS INFLUENCE ON REPAIR RATE

Technical Report ·
OSTI ID:4007829
Nine hundred female RF mice were given conditioning exposures of Co/sup 60/ gamma rays ranging from 0 to 2000 rads by the fractionation method. Following 90 days of repair and recuperation, all groups were exposed to 450 rads of Co/sup 60/ gamma rays semiweekly to death. Accumulated median lethal doses and their equivalent acute values were calculated and compared to predicted values based on 5% irreparable injury and a 7-day repair half time. It was observed that predictions were accurate to within 3% of actual equivalent acute values. Observations were in support of the theory that irreparable damage from Co/sup 60/ gamma rays is lethal bound, having little or no effect on the repair rate. (auth)
Research Organization:
Los Alamos Scientific Lab., N. Mex.
NSA Number:
NSA-15-019154
OSTI ID:
4007829
Report Number(s):
TID-12632
Country of Publication:
Country unknown/Code not available
Language:
English

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