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Intensities of the K, L, and M Spectral Lines for the Elements with Atomic Numbers 16 TO 92*
Published online by Cambridge University Press: 06 March 2019
Abstract
Line intensity and background measurements were made on the K lines for the elements with atomic numbers 16 to 60, L lines for the elements above atomic number 42, and M lines for elements above atomic number 80. Three general classes of samples were investigated: (1) infinitely thick, (2) microgram deposits, and (3) thin layers.
These studies show that longer-wavelength L radiation may be preferable to the K series lines from the same element in the range of elements with atomic numbers 42 to 60, In particular the Lα lines are more intense than the K series lines from Class 2 and 3 samples. With Class 1 samples the Lα lines are weaker than the K series but their line-to-background ratio is superior to the K series.
M series lines show little promise for spectrochemical analysis except for elements with atomic numbers 90 to 92; for example, with uranium samples in Class 2 and 3, the very high line-to-background ratio of the UMβ1 line may have limited application.
Elements with atomic numbers from 16 to 22 are more sensitive than expected due to the very high line-to-background ratios and the reduced collimation requirements in this longwavelength region.
- Type
- Research Article
- Information
- Copyright
- Copyright © International Centre for Diffraction Data 1959
Footnotes
*
This paper was presented at the Seventh Annual Conference. Approval for publication was received too late for Inclusion in the Proceedings of that conference.
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