[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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



************************************************************************

You are currently subscribed to the Radsafe mailing list. To unsubscribe,

send an e-mail to Majordomo@list.vanderbilt.edu  Put the text "unsubscribe

radsafe" (no quote marks) in the body of the e-mail, with no subject line.

You can view the Radsafe archives at http://www.vanderbilt.edu/radsafe/



************************************************************************

You are currently subscribed to the Radsafe mailing list. To unsubscribe,

send an e-mail to Majordomo@list.vanderbilt.edu  Put the text "unsubscribe

radsafe" (no quote marks) in the body of the e-mail, with no subject line.

You can view the Radsafe archives at http://www.vanderbilt.edu/radsafe/

************************************************************************

You are currently subscribed to the Radsafe mailing list. To unsubscribe,

send an e-mail to Majordomo@list.vanderbilt.edu  Put the text "unsubscribe

radsafe" (no quote marks) in the body of the e-mail, with no subject line.

You can view the Radsafe archives at http://www.vanderbilt.edu/radsafe/