Acute Effects of Gamma Radiation in Primates
SCHOOL OF AVIATION MEDICINE RANDOLPH AFB TX
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One hundred seven Macaca mulatta monkeys were exposed in 16 groups to rapid delivery of Co60 gamma rays at doses at 400 r to 40,000 r. Statistical evaluation of the survival time determination of the LD5030 dose, clinical observations for a 30-day postirradiation period, and immediate postmortem examinations were performed. These three approaches to the investigation of the mechanism of radiation injury and death in the monkey were evaluated. Each method separated the groups of animals into three distinct and corresponding categories. The clinical and pathologic studies undertaken in this experiment provide further elucidation of the central nervous system, gastrointestinal, and hematopoietic types of radiation death.