The Design of a New Experimental Equipment for Photo Electron Measurements

摘要

In order to investigate the possibilities of the photo electron method as an analytic tool for determining the relative abundance of elements, a semicircular electron spectrometer with permanent magnet pieces was made. The pole pieces of the spectrometer have a diameter of 60 cm. Two additional airgaps were introduced in the spectrometer in order to achieve a better homogenity in the magnetic field and also to extend the homogenity over a greater part of the pole pieces. Attached to the spectrometer is an evaporation chamber which makes it possible to introduce an evaporated source into the spectrometer without exposing the source to air. The X-rays which are used for expelling electrons from the source are monochromatized by means of a bent crystal. It is possible to use both Cu-Kalpha and Mo-Kalpha radiation. The detection is made with photographic plates and the intensity ratios will be determined by counting electron tracks. Photo electron lines were obtained from the K-shell of Manganese. (Author)