Electronic radiography is a recently developed technique in which the radiographic image on an intensifying screen or output phosphor screen of an image amplifier is intensified by a closed-circuit television system, then recorded on photographic film or on a magnetic storage medium. This technique has proven capable of recording images of quality adequate for a wide range of diagnostic examinations and procedures, but at a dose significantly lower than that of other techniques.(1) Recent advances in television technology and in radiogrqphic screen manufacture have led us to develop a high resolution electronic radiographic system for mammography. Presented in this article are measurements which have been carried out on components of the system to optimize the system for mammography.