TheKoefisien atenuasi molar attenuation coefficient (indalam units ofsatuan cm<sup>2</sup>) berhubungan islangsung directly related to thedengan [[CrossPenampang sectionmelintang (physicsfisika)|attenuationpenampang crossmelintang sectionatenuasi]] via themelalui [[tetapan Avogadro constant]] N<sub>A</sub>:<ref name=Lakowicz2006>{{cite book|last1=Lakowicz|first1=J. R.|title=Principles of Fluorescence Spectroscopy|date=2006|publisher=Springer|location=New York|isbn=9780387312781|page=59|edition=3rd}}</ref>▼
▲The molar attenuation coefficient (in units of cm<sup>2</sup>) is directly related to the [[Cross section (physics)|attenuation cross section]] via the [[Avogadro constant]] N<sub>A</sub>:<ref name=Lakowicz2006>{{cite book|last1=Lakowicz|first1=J. R.|title=Principles of Fluorescence Spectroscopy|date=2006|publisher=Springer|location=New York|isbn=9780387312781|page=59|edition=3rd}}</ref>
