Polarization of Electrons by Scattering, I

Abstract

The double scattering experiment has been repeated to find out the evidence by polarization expected by theories. The scatterers used were gold foils of about 5×10 -6 cm in thickness and the energy of the electrons ranged from 60 to 130 kev. The experiments were carried out on the scattering through angles of 105° and 120° at the first and the second foil. At 120 kev the values of -200 δ 2 are 14.7±1.7 and 16.9±2.0, respectively, which are smaller than the half of the theoretical values predicted by Mohr at 121 kev. The results at 120° are somewhat larger than those at 105° , but the mean errors in counting are too large to be compared precisely. The azimuthal dependency of the polarization effect agrees with the theory qualitatively.