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PDFWAC 246-240-272

Decay of strontium-90 sources for ophthalmic treatments.

(1) 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 WAC 246-240-269.
(2) A licensee shall retain a record of the activity of each strontium-90 source in accordance with WAC 246-240-602.
[Statutory Authority: RCW 70.98.050. WSR 06-05-019, ยง 246-240-272, filed 2/6/06, effective 3/9/06.]
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