Fluorescence spectrum distinguishable photons

Energy dispersive instruments of small dimensions are reserved for both qualitative analysis and routine measurements (Figures 12.10 and 12.11). The spectrum is obtained by use of a detector installed quite close to the sample, which distinguishes the energy of each of the fluorescence photons captured. These instruments are equipped with either a small size and low power X-ray tube (around 10 W) or a radioactive source for field instruments. 

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