RE: Origination, Assumptions, Restrictions for Use of Uranium SA Calc

[Craig Reed <CReed@novoste.com>]

Can't know about <.711 (or maybe even higher) if the thing has been
blended.   The equation can't work except for a gaseous diffusion
process.  Manual mixing after the gaseous diffusion fact changes
everything. Craig
> -----Original Message-----
> From:	Redmond, Randy R. (RXQ)  [SMTP:RXQ@ornl.gov]
> Sent:	Thursday, January 21, 1999 8:14 AM
> To:	Multiple recipients of list
> Subject:	Origination, Assumptions, Restrictions for Use of
> Uranium SA Calc
> 
> All,
> 
> I have been unable to locate the origin/good documentation of  the
> uranium
> gaseous diffusion process specific activity formula:  
> 
> Specific Activity  = [0.4 + 0.38 (enrichment) + 0.0034 (enrichment)^2]
> E-6.
> 
> 
> The formula can be found in the Health Physics Manual of Good
> Practices for
> Uranium Facilities and 10 CFR 20, App. B.  What I'm  really interested
> in
> is:  (1)  how accurate is  the formula; and, (2)  is it applicable to
> enrichments < 0.71  - 10 CFR 20,  App. B implies it is good only for
> enrichments >  0.72.
> 
> Any help and prodding in the right direction is appreciated.
> 
> Randy Redmond
> Lockheed Martin Energy Systems
> P.O. Box 2009
> Bldg.  9769,  MS 8081
> Oak Ridge, TN  37831-8081
> Email:  rxq@cosmail3.ctd.ornl.gov
> Phone:  423-574-5640
> Fax:  423-576-6047
> 
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