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| abstraction > mathematical concept > number > quantity > radiation measurement > spectral feature > absorption edge > K edge | 
| K edge comparison table | ||
| Subject | is a kind of | has definition | 
|---|---|---|
| absorption edge | spectral feature | Sudden rises superposed on the smooth decrease of the curve of the attenuation coefficient, which cause the curve to have a typical sawtooth aspect. They generally occur at the limit of spectral lines. | 
| K edge | absorption edge | The absorption edge of the K shell (see absorption edges). | 
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