[ RadSafe ] NORM in CO2...

[Glenn R. Marshall]

It's a little-studied phenomenon known as reverse decay.  The radon gets trapped in the natural gas.  Then during transport at high velocity and high pressure, it picks up free helium atoms from the pipe walls and becomes radium.  There is some speculation that it's the same process by which DU gets thousands of times more radioactive after it gets buried......

(Here they come now!)
 
Glenn Marshall, CHP, RRPT


-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On Behalf Of Brennan, Mike (DOH)
Sent: Tuesday, August 18, 2009 2:36 PM
To: radsafe at radlab.nl
Subject: RE: [ RadSafe ] NORM in CO2...

How is the CO2 made?  If is made from natural gas, that might be the
source.  As I understand it, Ra is entrained/dissolved in natural gas,
and comes out of the ground with it.  Ra plating out on natural gas
pipes sometimes is raised as a NORM issue.  

Another thing to check is that the CO2 REALLY does have Ra-226 in it,
and that it is not the steel in the tank, or operator error.  I once had
a member of the public call, extremely agitated about the "high
readings" he was getting on his CDV GM.  When I asked him what scale he
was on there was silence for a while, then, "Oh."   

-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On
Behalf Of Brian G. Rees
Sent: Tuesday, August 18, 2009 11:12 AM
To: radsafe at radlab.nl
Subject: [ RadSafe ] NORM in CO2...

I have a question:  Why would CO2 have elevated Ra-226?  I'm familiar
with Rn in propane (similar boiling points), but what about Ra-226?

Thanks in advance,
Brian Rees
_______________________________________________
You are currently subscribed to the RadSafe mailing list

Before posting a message to RadSafe be sure to have read and understood
the RadSafe rules. These can be found at:
http://radlab.nl/radsafe/radsaferules.html

For information on how to subscribe or unsubscribe and other settings
visit: http://radlab.nl/radsafe/
_______________________________________________
You are currently subscribed to the RadSafe mailing list

Before posting a message to RadSafe be sure to have read and understood the RadSafe rules. These can be found at: http://radlab.nl/radsafe/radsaferules.html

For information on how to subscribe or unsubscribe and other settings visit: http://radlab.nl/radsafe/