Radiation transmission study of silicone elastomer for mammary prosthesis

Photon and electron transmission measurements were made for silicone elastomer and water, used in mammary prostheses. Photon energies used ranged from 100 kVp, 1.0-mm AI HVL, to 8 MV, and electron energies ranged from 3 to 11 MeV. Transmission of photons above 150 keV and electrons above 2 MeV through the silicone and water is identical, as expected from calculations of mass attenuation coefficients and mass stopping power.