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How much Sr-90 in clip-on lights? -Reply



Albert:

I can't be certain, but my guess is that these things contain radium
not strontium. The ones I've encountered with Sr-90 in them were
labelled as such. The ones I've seen with radium say "Poison Inside"
The USRC might stand for US Radium Co. If indeed it is Ra-226, they
contain about 5 microcuries or so.

Best of luck

Paul Frame
Professional Training Programs
Oak Ridge Institute for Science and Education
framep@orau.gov