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Pipes & ducts, surveys of

To: radsafe@romulus.ehs.uiuc.edu, BOERNERA@ORAU.GOV, SIMPSOND@ORAU.GOV, THOMASE@ORAU.GOV, BROCKJL@ORAU.GOV
Subject: Pipes & ducts, surveys of
From: FRAMEP@ORAU.GOV
Date: Fri, 11 Aug 1995 13:57 -0500 (EST)
Registered-Mail-Reply-Requested-By: FRAMEP@ORAU.GOV
Return-Receipt-To: FRAMEP@ORAU.GOV

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?

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