Dependence of cell survival on iododeoxyuridine concentration in 35-keV photon-activated Auger electron radiotherapy.

Purpose: To measure and compare Chinese hamster ovary cell survival curves using monochromatic 35-keV photons and 4-MV x-rays as a function of concentration of the radiosensitizer iododeoxyuridine (IUdR).

Methods And Materials: IUdR was incorporated into Chinese hamster ovary cell DNA at 16.6 ± 1.