Only an authorized medical physicist shall calculate the activity of each strontium-90 source that is used to determine the treatment times for ophthalmic treatments. The decay must be based on the activity determined under part 4731.4455.
A licensee must maintain a record of the activity of each strontium-90 source according to part 4731.4514.
MS s 144.1202; 144.1203
29 SR 755
March 12, 2009
Official Publication of the State of Minnesota Revisor of Statutes