Development of skeletal substitute materials

Kinase, Sakae   ; Kimura, Masaya*; Noguchi, Hiroshi

We have studied the formulation of skeletal substitutes for a in vivo calibration phantom using the basic data method. An equation for calculating the optimum relative mass of the corrective additives was developed. Also, epoxy resin based tissue substitutes simulating the skeleton were developed. The substitutes were examined for the photon transmissions using 16.6keV KX-rays from 93mNb and 59.5keV gamma rays from 241Am. It was found that the experimental transmission curves of the substitutes are in good agreement with the calculated ones. The equation for the corrective additive was validated. The skeletal substitutes were found to be suitable as the corresponding tissues defined in ICRP Publication.23.