10 C.F.R. § 35.433 Decay of strontium-90 sources for ophthalmic treatments.
Title 10 - Energy
(a) 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 §35.432. (b) A licensee shall retain a record of the activity of each strontium-90 source in accordance with §35.2433.
Title 10: Energy
PART 35—MEDICAL USE OF BYPRODUCT MATERIAL
Subpart F—Manual Brachytherapy
§ 35.433 Decay of strontium-90 sources for ophthalmic treatments.
