[Phys-l] Short half-life isotope separation. Was:Re: Minigenerator nuclear rate meter

[Bernard Cleyet <bernardcleyet@redshift.com>]

Less expensive and the advantage of DIY is MeIBK (hexone),  dil. HCl and 
uranyl nitrate or acetate.  (I think I've seen recipes for both.)   
Shake and Pa resides in the top hexone layer W/ a  short half-life.  The 
container must be thin plastic, as, IIRC, the betas are low E.  Recipes 
reside on the web.

bc, a penny pincher and DIYer.

p.s. the container will die long before the Pa is exhausted.  Reminds me 
of Keynes:  "In the long run we'll all be dead."

Brian Whatcott wrote:

> At 09:42 AM 6/1/2007, Charles Crook, you wrote:
>
>  
>
> > Colleagues:
> >
> > Amidst the long-unused equipment in our stock room, we have a Union
> > Carbide Minigenerator Nuclear Rate Meter.  This is a small,
> > battery-operated unit in a yellow and blue case that detects decays
> > and reports them both with clicks on the internal speaker and in
> > Counts per Minute on an analog meter.
> >
> > I am preparing to lead a group of Boy Scouts through their Nuclear
> > Science merit badge and thought that this little meter would be much
> >
> >    
cut

> "Obtaining isotopes with short half-lives can be readily done with the
> proper equipment.
> Union Carbide MINIGENERATOR systems can be used to separate
> pure samples of radioisotope daughter from mother products.
>  For instance, the Cesium 137 unit can be used to "milk" Barium 137m
> from a "cow." Tin 113 can be used to derive Indium 113m.T
> hese radioisotope generators use a chemical combination of
>  HCL and NaCl (called the eluant) to separate the daughter
>  products from the mother material."
>
> I took this from an....
>     Addendum to
> Hands-On Physics Activities with Real-Life Applications
> by James Cunningham & Norman Herr
> The Center for Applied Research in Education
> by Carl J. Wenning, Coordinator
> Physics Teacher Education Program
> Illinois State University
>
>
>
>
> Brian Whatcott    Altus OK    Eureka! 
>
>
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>