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Re: Pipes & ducts, surveys of



In regards to your bonus question: You might want to give CAPT James Malinoski a
call at 703-602-2582.  He should be able to answer your question...mike coogen 
sends


______________________________ Reply Separator _________________________________
Subject: Pipes & ducts, surveys of
Author:  radsafe@romulus.ehs.uiuc.edu at hq2ccgw
Date:    8/11/95 1:00 PM


Whew, its been a long week. But, its Friday!

Esteemed Radsafers, a few questions regarding surveys of the 
interiors, not exterior, of pipes and ducts:

1. What instruments, commercially available or otherwise, have you 
used? Any comments, good or bad?

2. If it was done quantitatively, how did you determine the 
efficiencies?

3. Any general thoughts on this subject e.g. problems, good 
references etc?

Thanks

Paul Frame

Bonus question. Does anyone know anything about a navy(?) 
radiation(?) symbol that takes the form of a trident with a wavy line 
(gamma ray?) heading off at right angles from one of the prongs?