[ RadSafe ] Po-210 Suppliers

[The Wilsons]

George,

I do not find your posts unacceptable to this forum, and in fact 
appreciate them.  I suspect there are a few that think this forum is 
their's and their's alone.  I find your posts of interest but from a rad 
safety technicians point of view.  It seems those that claim they are a 
waste of time do not have a delete key, or do not know how to use it.

Bob

Geo>K0FF wrote:
> All Po-210 in the US is supplied by Russia now. Per my conversation 
> with the reactor boys at Oak Ridge.
>
> Po-210 in liquid is nasty because it tends to "crawl' up the sides of 
> the container. Perhaps this is from the  "equal and opposite 
> action/reaction"
> kinetic energy gained by alpha emission. There is a huge recoil 
> reaction upon each decay. Being very poisonous, an LD50 lethal 
> quantity is not to large. I calculated it was only about .12 mg or 550 
> microCuries worth (my calcs), but never had that verified by an 
> expert. I've read that an inhaled dose of only 1/10th that amount can 
> be fatal.
>
> In the US, a sealed quantity test source has an EXEMPT QUANTITY of 
> 1/10th microCurie only. ( Schedule B, 10 CFR 30.71)
>
> If a solid foil form will
> work, a generally licensed STATICMASTER 3" brush refills contain 500 
> microCuries each, cost about
> $20.00 each.  We use them for alpha sources to power our research 
> experiments.
>
> Perhaps if you can get more information as to the researcher's 
> application, someone on
> RADSAFE may be able to recommend an alternative isotope.
>
> Good luck.
>
> I've been told my posts are too basic for this group and a waste of 
> time.Comments welcome one way or the other.
>
> .
> George Dowell
>
> ----- Original Message ----- From: "Marshall, Elaine" 
> <emarshall at lrri.org>
> To: <radsafe at radlab.nl>
> Sent: Tuesday, December 18, 2007 1:18 PM
> Subject: [ RadSafe ] Po-210 Suppliers
>
>
> One of the researchers here is hoping to find a supplier of 50 mCi of
> Po-210, preferably in solution.  Could someone offer some insight as to
> where I might start my research to procure this material?
>
>
>
> Elaine T. Marshall, CHP
>
> Radiation Safety Officer
>
> Lovelace Respiratory Research Institute
>
> 2425 Ridgecrest Drive SE
>
> Albuquerque, NM  87108
>
> (505) 348-9578
>
> emarshall at lrri.org
>
>
>
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