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RE: U-235 Weight Percent for Natural Uranium
Want to thank everyone for the responses. Unfortunately, the only standard
(link below) has been revised to remove the footnote stating a range (0.61
to 0.81) for U-235 weight percent - the explanation is that a reference for
it could not be found. As I get more information, I'll pass it on.
Randy Redmond
Radiological Control Organization
BWXT Y-12 L.L.C.
Oak Ridge, TN
865-574-5640
> -----Original Message-----
> From: Potter, Gus [SMTP:capotte@SANDIA.GOV]
> Sent: Tuesday, April 29, 2003 5:37 PM
> To: radsafe@list.vanderbilt.edu
> Subject: RE: U-235 Weight Percent for Natural Uranium
>
> Try this also:
>
> http://www.eh.doe.gov/techstds/standard/std1136/STD11362000.pdf
>
> Table 2-1
>
> Gus
>
> C. A. Gus Potter, Ph.D., C.H.P.
> Sandia National Laboratories
> Albuquerque, New Mexico
> (505) 844-2750
> capotte@sandia.gov
>
> This cause of exploration and discovery is not an option we choose; it is
> a
> desire written in the human heart. We are that part of creation which
> seeks
> to understand all creation. We find the best among us, send them forth
> into
> unmapped darkness, and pray they will return. They go in peace for all
> mankind, and all mankind is in their debt.
> (G. W. Bush)
>
>
> -----Original Message-----
> From: Mike Zemyan [mailto:mzemyan@schaferlabs.com]
> Sent: Tuesday, April 29, 2003 1:42 PM
> To: radsafe@list.vanderbilt.edu
> Subject: RE: U-235 Weight Percent for Natural Uranium
>
>
> 29 April 2003
>
> This topic was addressed in the following publication:
> "Isotopic fingerprints for natural uranium ore samples",
> International Journal of Mass Spectrometry 193 (1999) 9-14, S. Richter et
> al.
>
> The authors included the following suggestions for the ranges of natural
> variations in uranium atomic percentages:
> 234U: 0.0054 - 0.0051
> 235U: 0.7207 - 0.7201
> 238U: 99.2748 - 99.2739
>
> Michael Zemyan
> Schafer Vallecitos Laboratory
> Sunol, CA
>
> -----Original Message-----
> From: owner-radsafe@list.vanderbilt.edu
> [mailto:owner-radsafe@list.vanderbilt.edu]On Behalf Of Redmond, Randy
> (RXQ)
> Sent: Tuesday, April 29, 2003 10:11 AM
> To: 'radsafe@list.vanderbilt.edu'
> Subject: U-235 Weight Percent for Natural Uranium
>
>
> Has anyone seen a document/regulation that states a range for U-235 weight
> percent in natural uranium? Seems like I ran across something years ago,
> but cannot locate.
>
> Randy Redmond
> Radiological Control Organization
> BWXT Y-12 L.L.C.
> Oak Ridge, TN
> 865-574-5640
>
>
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