Abstract
We have developed a crystal spectrometer system for rapid chemical state analysis by external beam particle induced X-ray emission. The system consists of a flat single crystal and a five-stacked position-sensitive proportional counter assembly. Chemical state analysis in atmospheric air within several seconds to several minutes is possible. A mechanism for time-resolved measurements is installed in the system. Performance of the system is demonstrated by measuring the time-dependence of chemical shifts of sulfur K α 1,2 line from marine sediment and aerosol samples.
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