Re: dose conversion

[Wes Van Pelt <VanPeltW@IDT.NET>]

My original post started with the "from" word and got cut off. Here it
is again

> Charles Meyer wrote:
> >
> > I need to make a shipment of Sr-90, the only indicator of activity
> > that I have is an old calibration stating that the eye applicator
> > delivered 78 beta rads per second as of 12/17/65.
> >
> > Anyone know how the dose rate was calculated and I can back calculate
> > into a reasonable estimate of the activity?
> > <><><><><><><><><><><><><><><><><>
> > <>    Charles R. (Russ) Meyer                  <>
> > <> Email: cmeyer@brc1.tdh.state.tx.us           <>
> > <>     Phone:(512)834-6688                       <>
> > <>        Fax:(512)834-6654                        <>
> > <><><><><><><><><><><><><><><><><>
> 
> Charles and All,
> 
> >Well, from my files, I find that a 100 mCi Sr-90 eye applicator beta source
> was rated at 56 rad/sec.
> 
> cheers, Wes
>
-- 
Wesley R. Van Pelt, Ph.D., CIH, CHP                KF2LG
President, Van Pelt Associates, Inc.     
Consulting in radiological health and safety.
mailto:VanPeltW@IDT.net        
http://shell.idt.net/~vanpeltw/index.html