Abstract
We have studied the possibilities of extending analysis by non-dispersive spectrometry of X-rays excited by fluorescence using a radioactive source, to there cases currently encountered in practice: (1) measurement of the characteristic X-radiations of the light elements, by operating under vacuum with a proportional flow counter; (2) measurement of X-radiation whose peak is superimposed on the escape peak of a higher energy radiation; (3) measurement of characteristic X-radiations of elements of neighbouring atomic numbers. The last two problems may be solved using Dolby's method (6). Thus one can envisage the application of non-dispersive spectrometry to the simultaneous analysis of Fe, Mn, Ca, Si, Al, Mg in iron ores.
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