Re: Re(2): Radionuclide impurities in Therapeutic Dosages

[Kent Lambert <lambert@allegheny.edu>]

LIPTONW@detroitedison.com wrote:
> 
> --Boundary-3557463-0-0
> 
> My understanding is that the problem is not Tc-99, but Mc-99 "breakthrough"
> out of the column into the Tc-99m eluate.
> Bill Lipton
> The opinions expressed are strictly mine.
> Here's to a risk free world, and other fantasies.

Taking a typical eluate from a Tc-99m generator of 0.2 Ci of Tc-99m.  If you 
let this decay completely you end up with 2.3E14 atoms of Tc-99.  This is 
about 25 Bq.  Not exactly a significant quantity.

-- 
Kent Lambert, CHP
lambert@allegheny.edu

All opinions are well reasoned and insightful.
Needless to say, they are not [necessarily] the
opinions of my employer. - paraphrased from Michael Feldman