Biological half life

["Dukelow, James S Jr" <jim.dukelow@pnl.gov>]

Is the data on the biological fate of Actinium really good enough to calculate
its biological half life to 4 significant digits?

Best regards.

Jim Dukelow
Pacific Northwest National Laboratory
Richland, WA
jim.dukelow@pnl.gov

These comments are mine and have not been reviewed and/or approved by my
management or by the U.S. Department of Energy.
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