[ RadSafe ] Disposal via Decay in Storage

[John Jacobus]

Roy,
And the reason is many of the radionuclide have short
half-lives.  In medicine we do not have to deal with
transuranics, with the exception of depleted uranium
in teletherapy machines that are used as shielding.  

--- ROY HERREN <royherren2005 at yahoo.com> wrote:

>    A few hundred counts on the floor or work bench
> is a big deal to the NRC, but God forbid that they
> should ever go do a survey in the patients restroom.
>  The kidneys and the bladder do a great job of
> filtering out foreign material such as Tc-99M.  If
> the average bone scan Tc-99m patient is dosed with
> 25 mCi how much goes down the drain in the first
> hour while the patient is awaiting uptake prior to
> imaging?  Simple answer...a lot.  I have personally
> seen an incontinence pad set off a land fill monitor
> at over 25 feet away.
>  
>   Safe to say, Nuc Med is a world away from the
> Health Physics of Nuclear Power.
>  
> Roy Herren
> "McMahan, Kimberly L." <mcmahankl at ornl.gov> wrote: 
> Not to be too contrary, but we DO have people
> walking around "hot." I
> suppose it's that age-old difference between the
> medical definition of
> "hot" and everyone else's. =]
> 
> Kim McMAHAN 
> Oak Ridge National Laboratory
> External Dosimetry 865.576.1566
>. . .

+++++++++++++++++++
On Oct. 5, 1947, in the first televised White House address, President Truman asked Americans to refrain from eating meat on Tuesdays and poultry on Thursdays to help stockpile grain for starving people in Europe. 

-- John
John Jacobus, MS
Certified Health Physicist
e-mail:  crispy_bird at yahoo.com


	
		
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