Linear absorption (attenuation) coefficient

Input(s)

$\mathrm{N}$: Number of Atoms Per Unit Volume $\left(\mathrm{m}^{-3}\right)$

$\sigma$: Thin Cross Section Expressed in Barns Per Atom $\left(1\right.$ Barn Is $\left.10^{-28} \mathrm{~m}^{2}\right)\left(\mathrm{m}^{2} /\right.$ atom $)$

Output(s)

$\alpha_{l}$: Linear Absorption Coefficient $(1 / \mathrm{m})$

Formula(s)

$$ \alpha_{l}=\sigma * N $$

Reference(s)

Bassiouni, Z., 1994, Theory, Measurement, and Interpretation of Well Logs. SPE Textbook Series Vol. 4. Chapter 2, Page: 33.