Cavendish Laboratory : Apparatus for measuring the charge carried by the alpha-particles by Rutherford and Geiger.
Cavendish Laboratory
<p style='text-align: justify;'>Colour photograph of Rutherford and Geiger's 1908 apparatus for measuring the charge carried by the alpha-particles. They measured the total charge of a flux of alpha-particles using this apparatus. The radium sample was contained in the vessel and the alpha-particles collected on the plate.</p>