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Application of a Low Energy X-Ray Spectrometer to Analyses of Suspended Air Particulate Matter

  • R. D. Giauque (a1), R. B. Garrett (a1), L. Y. Goda (a1), J. M. Jaklevic (a1) and D. F. Malone (a1)...


A semiconductor detector x-ray spectrometer has been constructed for the analysis of elements in air particulate specimens. The excitation radiation is provided, either directly or indirectly, using a low power (40 watts) Ag anode x-ray tube. Less than 100 ng for most of the elements in the range Mg → Zr, Pb are easily detected within two 1-minute counting intervals. A calibration technique for light element analysis and an experimental method which compensates for particle size effects will be discussed.



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