Re: Kr-85

[Bob Hearn <rah@america.net>]

I imagine the concern is related to the 10.7-yr variety of Kr-85, a low
yield reactor fission product effluent component which is of significance
due to the limited cumulating effect resulting from its longer half-life.

Bob Hearn
rah@america.net
Unaffiliated

At 10:04 AM 12/4/96 -0600, you wrote:
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>     Joe,
>     
>     When I add up all the natural abundances of all the grey boxes on the 
>     Kr part of the chart of nuclides, I get 100%.  Kr-85 has a short half 
>     life to stay around for any period of time (~4 1/2 hrs).  I could not 
>     imagine Kr-85 being a rad problem, unless it was being produced by 
>     nuclear methods and not cryogenic-from the atmosphere methods.  
>     
>     Robert A. Jones
>
>
>______________________________ Reply Separator
_________________________________
>Subject: Kr-85
>Author:  Joe Bianconi <umtrahp@concentric.net> at -MailLink
>Date:    12/4/96 9:42 AM
>
>
>Radsafers:
>Reading a report from a company that produces specialty gases (e.g., Kr from 
>the atmosphere via a cryogenic method), they are convinced that they have a 
>rad problem with Kr-85.  I do not know the basis for their concern. Has 
>anyone ever heard of a similar situation.
>I would appreciate any information you have.
>                Joe Bianconi
>         Rust Federal Services, Inc.
>Uranium Mill Tailings Remedial Action Project
>     2309 Renard Place SE, Suite 300
>          Albuquerque, NM 87106
> 505/246-2537 voice        505/766-1813 fax
>     
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