[ RadSafe ] Radsafe Posting - Alpha Creep References

[Cary Renquist]

I should have looked at those links first...

the terms: alpha recoil contamination 
might be better...

This looks like a good start:
Transport of Radioactive Material by Alpha Recoil
File Format: PDF/Adobe Acrobat - View as HTML
mathematical model for the transport of alpha-recoil
aggregates through filters. ... “Forms of
contamination of the environment by radionuclides
after ...
<http://www.ornl.gov/~webworks/cppr/y2005/rpt/122446.pdf>

Good luck,
Cary

--- Cary Renquist <cary_rdsfe at pacbell.net> wrote:

> Tom,
> 
> Try a search for 
>   "alpha recoil" contamination creep
> Here is a tiny url to a google search for the terms
> above:
>    <http://tinyurl.com/g57bh>
> 
> Here are a couple of links:
> 
> <http://www.bredl.org/pdf/SRS_TV6dec02.pdf>
>   re-entrainment of particles, and alpha recoil
> through
>    multiple filters. In his letter Dr. Rickards. 
>   explains that alpha emitters like plutonium may 
>   “creep” ...
> 
>
<http://ar.inel.gov/images/pdf/200409/2004091500797KAH.pdf>
>   2) “Alpha recoil “ is a DOE term, for the ability
> of
>  
>   alpha emitters, like plutonium, to “creep “.
> through
> 
>   4 HEPA filters in a row! ...
> 
> Best regards,
> Cary
> 
> >Radsafers-
> >
> >We are looking for reference material on the
> phenomenon of the 
> >spread of alpha contamination due to "alpha creep"
> as
> some of us HPs 
> >know it.  We have checked the Radsafe Archives, our
> textbooks, and 
> >web searched, but to no avail.  Anybody have any
> references or a 
> >site that you can point us to?
> 
> >Thanks in advance.
> >
> >Tom O'Brien, CHP
> >National Institutes of Standards and Technology
> >Health Physics Group - MS 1733
> >100 Bureau Drive, Building 235
> >Gaithersburg, MD  20889
> 
>