Photon Interaction Summary

Here's a table highlighting the key information about each interaction:

Name	Absorbed/Scattered	Proportionality
Rayleigh scattering	Scattered	\eta \propto Z^2 / E^2
Photoelectric effect	Absorbed	\tau \propto Z^c / E^3, \; (c=4,5)
Compton scattering	Scattered	\sigma \propto e^- / g
Pair production	Absorbed	\kappa_{pair} \propto Z^2 , \; \kappa_{triplet} \propto Z
Photonuclear disintegration	Absorbed	\sigma_{pn} \propto Z

References and Further Reading