The characteristics of the radiation lesion in exposure of the anterior abdomen in dogs and the effect of modifying factors

A comparative study was made of the effect of gamma/neutron and X-radiation on the forepart of dog abdomen. The RBE coefficient was found to depend upon body mass and to range from 1.3 to 1.5. The exclusion of the sympathetic nervous system before irradiation was shown to aggravate the clinical condition and to increase the death rate. On the contrary, the exclusion of the parasympathetic nervous system before irradiation and gastric lavage after irradiation improved the clinical picture of radiation sickness and increased the radioresistance of dogs.