[ RadSafe ] Airborne tritium question

Scott Davidson bsdnuke at gmail.com
Wed Sep 9 16:01:33 CDT 2015

For SFP there's always some tritium from ternary fission. The fuel cladding is not completely containing the tritium and there are some cladding defects. So control ventilation to keep the concentration lower. Practice probably predates modern fuel. Old SS cladding didn't hold the tritium. 

Sent from my iPhone

> On Sep 9, 2015, at 3:51 PM, JOHN.RICH at sargentlundy.com wrote:
> This question came from a client.  Its outside my area so any input would 
> be much appreciated. 
> The plant currently performs monthly air samples for particulates and 
> tritium in their nuclear sample room and near the spent fuel pit . It 
> doesn't appear to be in any of the technical guidance documents. (It might 
> be a legacy good practice, but that can't be confirmed either).  Since 
> reactor water and the spent fuel pit have tritium, there is probably some 
> guidance somewhere. So, can anybody lead us to documented requirements for 
> routine sampling for particulates and/or tritium in the working areas of a 
> PWR?
> Thanks in advance  - -jmr
> John Rich
> Manager/Consultant 2
> Nuclear Power Technologies
> Sargent & Lundy
> 55 East Monroe Street | Chicago, IL 60603
> office: 1-312-269-3768 | mobile: 1-561-676-8144
> email :john.rich at sargentlundy.com
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