Proton Bremsstrahlung

Abstract

The cross section for proton bremsstrahlung is calculated from Sommerfeld's work and expressed as the classical orbit result plus a first quantum correction. This correction is due to the energy loss of the proton to radiation. For 150-kev x-rays emitted at 90° to a beam of 2-Mev protons incident on a tin ($Z=50\mathrm{}$) target, this correction decreases the classical prediction by 25 percent and serves to establish theoretical agreement with experimental results of Mark, McClelland, and Goodman.