RE: How DU was used in the production of Pu

[KKleinhans@fwenc.com]

The UO3 from Hanford was from the separations plants, such as PUREX, that
reprocessed the fuel from the production reactors.

In addition, in the mid to late 1980's, UO3 was being shipped from the UO3
plant at Hanford to Ashtabula, OH.

Also the Oak Ridge Gaseous Diffusion Plant (also known as K-25 and now
ETTP) processed reactor returns from both the Hanford and Savannah River
Production Reactors.

On the enriched U side, enriched uranyl-nitrate from the Savannah River
reprocessing facilities was shipped to Y-12 in Oak Ridge until
suspended/stopped by DOE in the mid to late 1980's.

**************************************************
Kyle R Kleinhans, CHP
Health Physicist
Foster Wheeler Environmental Corporation
111 Union Valley Road
Oak Ridge, TN 37830
Phone: (865) 481-8662
FAX:     (865) 481-8697
e-mail:   kkleinhans@fwenc.com
**************************************************


                                                                                            
                    Bernard L Cohen                                                         
                    <blc+@pitt.edu>           To:     Multiple recipients of list           
                    Sent by:                  <radsafe@romulus.ehs.uiuc.edu>                
                    radsafe@romulus.eh        cc:                                           
                    s.uiuc.edu                Subject:     RE: How DU was used in the       
                                              production of Pu                              
                                                                                            
                    02/02/2001 09:51                                                        
                    AM                                                                      
                    Please respond to                                                       
                    radsafe                                                                 
                                                                                            
                                                                                            





On Thu, 1 Feb 2001, Rodney Bauman wrote:
>
>  Starting in 1952, the GDPs
> (mostly Paducah) received "recycled" uranium from Hanford in the form of
> UO3.  The UO3 was converted to UF6 and fed into the cascades to
supplement
> the natural feed stream.  The program was so efficient that during FY
1973,
> approx. 65% of Paducah's cascade feed was of "recycled" origin.

     -What was the source of the U03 from Hanford? If it was from Pu
production reactors, it would be depleted and therefore less efficient as
a feed for a GDP than natural U.

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