Re: Self-absorption correction

["Deborah P. Steva" <dps3c@watt.seas.virginia.edu>]

Keith-

There is a generic curve in the RadHealth Handbook and there
are absorption curves for alpha and beta in the USEPA's
procedure titled something like "Gross Alpha and Beta Activity
in Drinking WAter Samples.  If you don't have these references
let me know.

Debby Steva
dps3c@Virginia.edu

According to Keith Welch:
> 
> Does anyone know of any "generic" self absorption factors that work for
> alpha/beta counting that would help get me in the ball park for a 2"
> planchet counted in a typical laboratory low bkg proportional counter.  I
> know the mass of the solids deposited on the planchet - its in the range of
> 50-100 mg. Is there a common reference that will get me close without having
> to build self absorption calibration curves?
> 
> Thanks
> Keith Welch
> Thomas Jefferson National Accelerator Facility
> Newport News VA
> welch@cebaf.gov
> 
>