Re: Opportunity to Excell

["RICHARD WARNOCK"<warnocrv@songs.sce.com>]

Some early Nuclear Chicago ion chambers had a C-14 check source built into the 
ion chamber end cap.  I don't know the model numbers nor do I recognize this 
model.


Radsafers:
     
        An acquaintance of mine recently "inherited" Nuclear Chicago QualComm 
Model 5120.  This instrument contains a check source.  Unfortunately he does 
not have a manual, any documentation, nor a way to determine what the check 
source is.  If you have insight into any of these aspects, I would greatly 
appreciate your contribution.
     
Gordon Quillin
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