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RE: Neutron Survey Meter
I have no personal knowledge of the specific instrument and source.
However, the source may be 241-Am with beryllium as the target material to
produce neutrons. We use this source configuration to calibrate and
performance test Eberline NRDs, neutron meter (alias RemBall).
Joe Guidotti
HP Leader-Instruments
CCNPPI
-----Original Message-----
From: Flanigan, Floyd [mailto:Floyd.Flanigan@nmcco.com]
Sent: Wednesday, August 20, 2003 8:55 AM
To: Kevin Hughes; radsafe@list.vanderbilt.edu
Subject: RE: Neutron Survey Meter
Standard questions:Did you check your print-out for the possibility of
summation peaks and escape peaks and correlate the energies to germane
energies which fall off scale hi/lo? Beryllium seems unlikely. You probably
already thought of all of this before so consider this as not being an
affront to your process but rather my thinking 'out loud'.
Floyd W.Flanigan B.S.Nuc.H.P.
-----Original Message-----
From: Kevin Hughes [mailto:K.H.Hughes@aston.ac.uk]
Sent: Wednesday, August 20, 2003 4:00 AM
To: radsafe@list.vanderbilt.edu
Subject: Neutron Survey Meter
To All Radsafers
I read with interest earlier postings of similar requests for information:
We too have an old "Slow Neutron Survey Meter" made by Ekco Electronic Ltd
- Type N578M, which (as some of you will know) contains a radioactive
source. Our initial spectral investigations of the source indicate 2 peaks,
1 being identified as 241Am and the other remains unknown (possibly
Beryllium!).
The reason for our request is that we would like to dispose of the source,
but are unable to until we can identify the other unknown peak and
determine the source activity - there are no labels/markings either on the
meter itself or the source to indicate the nature of the radioactivity or
it's activity.
Any help whatsoever would be much appreciated.
Kind Regards
Kevin Hughes
Site Radiation Officer
Aston University
Birmingham
England
k.h.hughes@aston.ac.uk
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