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abstraction > mathematical concept > number > quantity > radiation measurement > spectral feature > absorption edge > Helium discontinuity |
Helium discontinuity comparison table |
Subject | has specie | 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. | |
Helium discontinuity | helium (He I) | absorption edge |
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