Talk:Gamma ray cross section

Simplified photoeffect cross section Z dependence
The simplification of all constants to a single number also seems to drop one $$Z$$. The error also exist in the Fornalski paper doi=10.1088/2399-6528/aab40. I claim that it should be $$Z^5$$ on the the right hand side of the equation

$$\frac{16}{2}\sqrt{2}\pi r_e^2 \alpha^4 \frac{Z^5}{k^{3.5}} \approx 3 \cdot 10^{12} \frac{Z^4}{E_\gamma^{3.5}} $$. Kalvdans1 (talk) 14:42, 16 January 2023 (UTC)