Photoelectric absorption cross sectional area
Input(s)
Z: Atomic Number (dimensionless)
\(E_{\gamma}\): Energy of Gamma Rays \((\mathrm{keV})\)
Output(s)
\(\alpha_{p e}\): Photoelectric Absorption Cross Sectional Area (barns/electron)
Formula(s)
\[
\alpha_{p e}=12.1 * \frac{Z^{3.6}}{E_{\gamma}^{3.15}}
\]
Reference(s)
Bassiouni, Z., 1994, Theory, Measurement, and Interpretation of Well Logs. SPE Textbook Series Vol. 4. Chapter 2, Page: 36.