With a relativistic partial-wave method we calculated numerically the photon-energy-angle distributions of electron bremsstrahlung in the field of atoms with atomic number Z = 1 and 79 for kinetic energies of incident electrons T-1 = 2 to 5 MeV. We have found that in this intermediate-electron-energy region, the Born approximation works fine for low-Z elements, as expected. Our partial-wave results indicate that the shape of photon-energy-angle distributions is almost independent of atomic-electron screening. Our partial-wave results also indicate that both the high-energy approximation and the Born approximation predictions are quite good for the shape of photon-energy-angle distributions for small photon angles, We Compared our partial-wave results with experiments.
