Re:Half-life of Ra-228

[Rodney Bauman <rodney_bauman@wssrap-host.wssrap.com>]

Kocher: 5.75 years
GE Chart of the Radionuclides: 5.75 years
Fed. Guidance Report No. 11 (EPA): 5.75 years
Erdtmann and Soyka: 5.75 years
Rad Health Handbook: 6.7 years

I'd go with 5.75 years.

Rodney Bauman, CHP, RRPT
rodney_bauman@wssrap-host.wssrap.com

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