On the Double Coil Magnetic Lens β-Ray Spectrometer

Abstract

We have constructed the double magnetic lens β-ray spectrometer. Its geometry is shown in Fig. 1. We have tried the methods of Quade and Halliday to set the axis of the lens coil and the cylinder, the data of which was reported already. This paper includes the calculated values of the electron orbits and the resolving powers and the experimentally evaluated value of the energy .constant of the instrument by the analysis of the Co⁶⁰–γ.