RE: 436.37 keV

[Gerald.P.Lahti@ucm.com]

If you're looking at neutron activated concrete, Eu-156 is a likely
candidate.

* * * * * * * * * * * * * * * * * *
Jerry Lahti
Radiological Safety Specialist
ComEd - Downers Grove
(630) 663-6659
gerald.p.lahti@ucm.com
* * * * * * * * * * * * * * * * * * 

> -----Original Message-----
> From:	Harmon, Terry O'Devah (ONF)  [SMTP:onf@ornl.gov]
> Sent:	Wednesday, March 15, 2000 10:07 AM
> To:	Multiple recipients of list
> Subject:	RE: 436.37 keV
> 
> According to RAD Decay for Windows, the following nuclides emit a 436+ or
> -
> 2Kev photon:
> Elements Found with Emissions: 436 +/-2 keV
>  42    Ba-140  
>  44    Ba-142  
>  78    Cd-117  
> 139    Eu-156  
> 180    I-136   
> 240    Nb-96   
> 402    Tc-96   
> 423    Te-133m 
> 424    Te-134  
> 476    Xe-138
> Terry Harmon
> Sr. Health Physics Tech
> Kelly Scientific Resources
> Phone: (865) 241-0289
> Pager: (865) 417-1592
> Email: onf@ornl.gov <mailto:harmonto@ornl.gov> 
> 
> 	-----Original Message-----
> 	From:	dpharrison@aep.com [SMTP:dpharrison@aep.com]
> 	Sent:	Wednesday, March 15, 2000 5:56 AM
> 	To:	Multiple recipients of list
> 	Subject:	436.37 keV
> 
> 
> 
> 	I'm looking at a gamma spec printout and at the identified 436.37
> keV peak.
> 	It's of sufficient abundance that I can't discount/reject it.
> Anyone know what
> 	radionuclide this peak belongs to?  The rest of the identified peaks
> are of
> 	natural background.  Thanks.
> 
> 	David Harrison
> 	dpharrison@aep.com
> 
> 
> 	
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