1. EXAFS eV range beginning before an absorption edge of an element in the sample. 2. In this compound, rubidium atoms were the ones close to the absorption edge . 3. Nickel has an absorption edge at 149 pm, between the two copper lines. 4. This results in an absorption edge . 5. These spikes are called absorption edges . 6. Henry further realized that these discrete electron states would greatly alter the optical absorption edge of the semiconductor. 7. An absorption edge occurs in the spectrum with wavelengths longer than 6720 ?transmitted and shorter wavelengths heavily attenuated. 8. In general the X-ray form factor is complex but the imaginary components only become large near an absorption edge . 9. It is therefore possible to select an element to probe by tuning the x-ray energy to the appropriate absorption edge . 10. The X-ray K absorption edge occurs at 618.41?.04 X units compared to molybdenum metal at 618.46 xu.
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