1967 年 36 巻 10 号 p. 782-788
In the pilot scale apparatus of radiation-induced polymerization of ethylene, the distribution of exposure dose rate along the axis of the autoclave was measured, and also calculated using a simple model. The calculated value and the observed one were in good agreements. The distri-bution of dose rate absorbed in ethylene compressed at 400 kg/cm2 in the autoclave was calculated. From this result the radiation absorption efficiency of this autoclave is found to be 0.22%.