1 Answer | Add Yours
There is not one but a few main reasons for using lead and concrete instead of particle deflection fields in a reactor shielding. First reason (and also the main) is that deflection fields act only on charged particles (alpha and beta radiation). A nuclear reactor usually generates neutron, X and gamma radiation all of which can not be stopped by an electric or magnetic field. Second reason is that the stopping power of a solid barrier (lead or concrete) is much bigger than the stopping power of a field barrier for electrically charged radiation. In other words, you need only a very small length of lead shielding when compared with field shielding. Third reason is that in all nuclear applications safety is a main concern. Concrete and lead stay in place, but what if the electric power supply of the deflection fields goes down? All the shielding is lost in this last case.
We’ve answered 318,957 questions. We can answer yours, too.Ask a question