A Geiger Counter Spectrometer for X-Ray Fluorescence Analysis

A Geiger counter spectrometer was constructed for analysis of x-ray fluorescence spectra. The instrument is capable of measuring the K series lines of the elements beginning at about atomic number 22, up to about atomic number 50. In the middle portion of this range, spectro-chemical analyses can be performed rapidly with a sensitivity of 1 part in 10,000. Although the intensities are considerably reduced, analyses may still be carried out, using the L series spectra of the elements above atomic number 55.