Re: Natural U check source

["William G. Nabor" <wgnabor@uci.edu>]

You might consider rolling your own by using some uranyl acetate (there may
be other Radsafers willing to donate a jar or two of the stuff to the
cause).  If it is reagent grade stuff, then you could accurately weigh out a
precise amount and then calculate the actual U content.
>
>At 02:29 PM 3/7/97 -0600, you wrote:
>>Does anyone know of a good source (no pun intended) for a natural U check
>source 
>>to be used for calibrating instruments for detecting alpha particles on
>wipes?  
>>We have an Eberline SPA-1A and need a calibration source before doing some 
>>swipe tests for loose alpha contamination.  The source should be no larger
>than 
>>25 mm diameter by 1.5 mm in thickness.  Active area should be 16 mm in
>diameter 
>>or larger.  We want to use natural U since that is what we will be looking for 
>>in the actual situation.
>>
>>Any assistance would be appreciated.  Haven't had any luck with Eberline or 
>>their supplier.
>>
>>*************************************
>>Regards,
>>Peter J. Fundarek
>>University of Toronto
>>CANADA
>>email:  p.fundarek@utoronto.ca
>>phone:  (416) 978-2374
>>fax:  (416) 971-1384
>>*************************************
>>
>>
>>
>>
>>
>Joel T. Baumbaugh (baumbaug@nosc.mil)
>Naval Research and Development (NRaD)
>San Diego, CA., U.S.A.
**********************************************************************
William G. Nabor
University of California, Irvine
EH&S Office
Irvine, CA,  92697-2725
WGNABOR@UCI.EDU
**********************************************************************