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Re: Biological half-life



21.77 years appears to be the physical half life.  Is it also the biological half life?

Dan Burnfield, CHP PE

Defense Nuclear Facilities Safety Board
625 Indiana Ave, NW Ste. 700
Washington, DC  20004

Tel:  202.694.7113
Fax: 202.208.6518
Email danb@dnfsb.gov

>>> "Tom Savin" <lexicon@hotbot.com> 08/03/00 11:27AM >>>
 21.77 yrs.
--

On Thu, 3 Aug 2000 10:10:35    Dan Burnfield wrote:
>Does anyone know the biological half-life of Ac-227?
>
>
>Dan Burnfield, CHP PE
>
>Defense Nuclear Facilities Safety Board
>625 Indiana Ave, NW Ste. 700
>Washington, DC  20004
>
>Tel:  202.694.7113
>Fax: 202.208.6518
>Email danb@dnfsb.gov 
>                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
>************************************************************************
>The RADSAFE Frequently Asked Questions list, archives and subscription
>information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html 
>


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The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html