Transmission ofβ-Rays Through Magnetized Iron Foil: An Attempt to Polarize a Beam of Electrons

This paper describes an attempt to polarize a beam of $\beta$-rays by transmission through two magnetized iron foils, the first being regarded as the polarizer and the second as the analyzer. Radium was used as the source of electrons and a Geiger counter to give the number penetrating both foils with varying angles between their directions of magnetization. The data, representing the transmission of some quarter of a million electrons, give no evidence of such polarization.