Transport calculations of gamma ray flux density and dose rate about implantable californium-252 sources

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Abstract
Gamma flux density and dose rate distributions were calculated about implantable 252Cf sources for an infinite tissue medium. Point source flux densities as a function of energy and position were obtained from a discrete-ordinated calculation, and the flux densities were multiplied by their corresponding kerma factors and added to obtain point source dose rates. The point dose rates were integrated over the line source to obtain line source dose rates. Container attenuation was accounted for by evaluating the point dose rate as a function of platinum thickness. Both primary and secondary flux densities and dose rates are presented. The agreement with an independent Monte Carlo calculation was excellent. The data presented should be useful for the design of new source configurations.

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