[ RadSafe ] Subsurface Gamma Spec Detector

[Dennis Quinn]

Dustin,
The simple method is just to use a 1x1 or 0.5" x 1" NaI, (e.g., Ludlum 44-62 probe) with a Ludlum 2221 or similar meter. just attach a measured rope to know how deep you are and you've got a log of depth vs. cpm.  there are a number of places that will rent this equipment, a few I can think of offhand are CoPhysics in Monroe, NY, RSA in Connecticut, and RSCS in New Hampshire.  In the northeast, Atlantic Nuclear (Canton, MA) sells Ludlum equipment.  


Dennis Quinn, CHP
DAQ, Inc.
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of 'Dustin G Miller'
Sent: Tuesday, July 19, 2011 11:38 AM
To: 'The International Radiation Protection (Health Physics) Mailing List'
Subject: Re: [ RadSafe ] Subsurface Gamma Spec Detector

Thank you for the reply.  I was hoping to find an off the shelf
system before contacting Canberra. 

----- Original Message -----
 From:"The International Radiation Protection (Health Physics)
Mailing List" 
To:"The International Radiation Protection (Health Physics) Mailing
List" 
Cc:
Sent:Tue, 19 Jul 2011 15:00:16 +0000
Subject:Re: [ RadSafe ] Subsurface Gamma Spec Detector

Dustin,

Have you tried Canberra? They produce units and software packages
(ISOCS) which utilize ISOCS to assay activity above ground and within
a borehole (try the Marinelli geometry). The ISOCS borehole capability
is quite interesting and you can derive activity concentrations for
underground volume sources. Try these links:

http://www.canberra.com/literature/973.asp [1]

http://www.canberra.com/products/ [2]

Regards,
John Dixon

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu [3]
[mailto:radsafe-bounces at health.phys.iit.edu [4]] On Behalf Of Dustin
G. Miller
Sent: Monday, July 18, 2011 10:40 PM
To: 'The International Radiation Protection (Health Physics) Mailing
List'
Subject: [ RadSafe ] Subsurface Gamma Spec Detector

My internet search skills are failing me today. Does anyone know
where to
rent or purchase a gamma spec unit with a detector that has
dimensions
capable of logging a geoprobe boring? I have found the detector in
the link
below, but I don't know where to purchase and/or rent.

http://www.detectors.saint-gobain.com/SlimLine.aspx [5] 

Thank you,

Dustin G. Miller

RSO/Health Physicist

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Links:
------
[1] http://www.canberra.com/literature/973.asp
[2] http://www.canberra.com/products/
[3] mailto:radsafe-bounces at health.phys.iit.edu
[4] mailto:radsafe-bounces at health.phys.iit.edu
[5] http://www.detectors.saint-gobain.com/SlimLine.aspx
[6] http://health.phys.iit.edu/radsaferules.html
[7] http://health.phys.iit.edu/
[8] http://health.phys.iit.edu/radsaferules.html
[9] http://health.phys.iit.edu/

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