Non-dispersive soft x-ray fluorescence analyses

In a nondispersive x-ray fluorescence analysis system, all x-rays incident on the detector are analyzed according to energy in a time sharing manner. The spectrometer and techniques described were designed to take advantage of the features of a nondispersive detector. These include sensitivity, relatively short geometry, and the ability to detect oxygen and sodium x-rays at the low energy end of the elemental scale. Results are given for analyses of Sirof pottery samples and standard USGS rocks. (LK)