# Gamma radiation incident on material generating $e^+/e^-$ pair and Schwinger Limit

Does a gamma photon incident upon a material creating an electron-positron pair plus kinetic energy transfer momentum to an EM field and if so does the intensity approach the Schwinger Limit during the short duration prior to the pair generation? If true, doesn't this validate the predictions that pairs are created by and EM field near the Schwinger limit?