##  [Attenuation Coefficient](/attenuation-coefficient) 

  ##  [Attenuation Coefficient](https://natural.quantumdictionary.io/attenuation-coefficient-0) 

  

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**Natural & Formal Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A material parameter α (per unit length) describing exponential decay of intensity or flux through a medium via I(x) = I0 exp(−α x); quantifies loss due to absorption and out‑scattering per unit path length.