Davis-Besse uses a 10% bias. The differences between online and outage are 
significant.   On-line 35-40%; Outage 8%.



Sent from my iPad

On Jun 28, 2018, at 11:12 AM, James P Stewart via Powernet 
<[email protected]<mailto:[email protected]>> wrote:

Fermi has a 10% bias on SRD (DMC2000/3000).  We see about 3% return.




From: Powernet [mailto:[email protected]] On Behalf Of Williams, 
Michelle Lewis via Powernet
Sent: Thursday, June 28, 2018 10:50 AM
To: [email protected]<mailto:[email protected]>
Cc: Williams, Michelle Lewis 
<[email protected]<mailto:[email protected]>>
Subject: [EXTERNAL] [Powernet] Calibration bias between SRD and DLR 
benchmarking question

Do you use a calibration bias between your SRD and DLR?
If so what percent is it?
How much of a return do you see once you have completed your DLR exchange?

Vogtle 1&2 currently has a calibration bias of 17% on our SRD (DMC 3000) as 
compared to our DLR (OSLN).  We currently see a return of 14% of dose once we 
have our DLR’s exchanged and read as compared to the SRD estimates

Michelle Williams
RP Superintendent Support Services
Plant Vogtle Units 1&2
706.848.4236 tel
919.770.7138 cell
<image001.jpg>

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