As why dentists use lead apron to shield Xray and not silver lined apron clearly due to cost.(posted 8471 days ago)The key facts I provided in my article are the Xray aborption coeficients of aluminium, silver, steel and brass. I got in from a reference book in a big library, I forgot the name of the reference it is a three inches thick book.
I think these xray absorption factors must be listed in many other references.