Subject: Do the diamagnetic properties of Lead contribute to x-ray shielding?

I know that x-rays are electromagnetic in nature. I also know that Lead Pb has 
diamagnetic properties. I have always described the process of shielding 
(blocking EM radiation) in terms of the atomic mass, where the greater the 
atomic mass results in greater the probability of photon interaction. However, 
as I review my section on magnetism, I began to wonder if the diamagnetic 
properties of the lead contribute to its shielding effectiveness.

Re: Do the diamagnetic properties of Lead contribute to x-ray shielding?