Photon linear polarization in the elementary process of electron-electron bremsstrahlung

Abstract
The photon linear polarization in the elementary process of electron-electron bremsstrahlung was measured in a triple coincidence experiment for coplanar geometry. An electron beam of 300 keV was used incident on a carbon target. For the present parameters the radiation was found to be completely polarized with the electric vector in the reaction plane. This is in agreement with a theoretical calculation within the experimental error.