[ RadSafe ] license for neutron source?

[Robert Atkinson]

It's easy to get a neutron source, 
Just follow a construction survey pick-up truck around and wait for
their moisture density gauge to fall out of the back :-)
If you read the NRC event reports they lose about one a week!
So far this week the count is four stolen totalling 170mCi Am-Be
plus the Cs137 gamma sources.

Robert Atkinson.

-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On
Behalf Of AnaLog Services, Inc.
Sent: 23 November 2005 02:10
To: Doug Aitken; JGinniver at aol.com; tstrank at gmail.com
Cc: radsafe at radlab.nl
Subject: Re: [ RadSafe ] license for neutron source?

I believe that is correct with regard to the majors being unwilling to
sell 
neutron generators to independents (or much of anything else; witness
the 
sad story of Halliburton and the acquisition of GO/GOI/MLS, and more 
recently Weatherford and their absorption of Computalog/SIE).

In addition to Thermo, there is also Ray Ethridge down in Chapel Hill, 
Texas.  And don't forget the cheaper Russian tubes used by Hotwell and 
others in pulsed neutron logging of one kind or another.

These devices are comparatively expensive, but "chemical" neutron
sources 
are all but impossible to get at the moment.  So there may be some
serious 
discussion about the use of neutron generator tubes for conventional
neutron 
porosity well logging in the near future.  MPD (formerly part of GE) was

exploring this market fairly recently.

Syd H. Levine
AnaLog Services, Inc.
Phone:  270-276-5671
Telefax:  270-276-5588
E-mail:  analog at logwell.com
URL:  www.logwell.com

----- Original Message ----- 
From: "Doug Aitken" <daitken at sugar-land.oilfield.slb.com>
To: <JGinniver at aol.com>; <tstrank at gmail.com>
Cc: <radsafe at radlab.nl>
Sent: Monday, November 21, 2005 11:40 AM
Subject: Re: [ RadSafe ] license for neutron source?


> At 01:58 PM 11/18/2005, JGinniver at aol.com wrote:
>>I understand that the following companies can supply different 
>>models/types:
>>     MANUFACTURERS OF COMPACT  ACCELERATOR NEUTRON TUBES  UNITED
STATES
>>Primary focus  _Baker Hughes,  Inc._ (http://www.bakerhughes.com/) 
>>(Houston, TX)
>>Oilfield services  _Halliburton  Co._ (http://www.halliburton.com/) 
>>(Houston,
>>TX) Oilfield services  _Schlumberger  Ltd._
(http://www.schlumberger.com/)
>>(Princeton, NJ) Oilfield services  _Thermo Electron  Corp._
>>(http://www.thermo.com/)  (Colorado Springs, CO) All commercial 
>>applications
>
> AFAIK, The three oilfield services companies mentioned (Baker Hughes, 
> Halliburton and Schlumberger) produce pulsed neutron generators only
for 
> internal use (for downhole physical measurements).
>
> Thermo Electron corp produce a range of generators using both D-D and
D-T 
> reaction and are the obvious choice to investigate for an application
such 
> as Tom mentioned.
>
> Regards
> Doug
>
> Doug Aitken
> Schlumberger D&M QHSE Advisor
> Office (rarely!)        281-285-8009
> Home (better!)          713-797-0919
> Cell (best?)            713-562-8585
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