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RE: Half-life of Ra-228



George Koperski wrote:

"What is the correct value of the half-life for Ra-228 ?  I have been
consistently encountering two values: 5.75 years  and 6.7 years."

ICRP38, Kocher and the Handbook of Health Physics and Radiological Health, Third
Edition, all list the half-life as 5.75 years.  I would go with that value.

Leon E. Brown, CHP
Senior Consultant
Big Rock Point Restoration Project
(231) 547-8419
lebrown@cmsenergy.com


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