Duke is similar to North Anna.

Tim O'Donohue
980-373-7998

From: [email protected] [mailto:[email protected]] On Behalf Of BJ 
Thompson
Sent: Saturday, September 18, 2010 11:12 AM
To: [email protected]
Subject: RE: Powernet: TLD and ED worn in close proximity

North Anna does not use such a device.  Workers are trained to maintain these 
in close proximity of each other.  We have procedural guidance to keep them in 
close proximity, defined as within a hand width.  We perform periodic 
observations in the field and question workers if a dose correlation occurs.


Barbara J. Thompson
Supervisor of Exposure Control
Dominion - North  Anna Power Station
Email:  [email protected]
Phone:  540-894-2605
Beeper: #3469
FAX:  540-894-2408



From: [email protected] [mailto:[email protected]] On Behalf Of 
Egert, Glenn W.
Sent: Monday, September 13, 2010 6:35 PM
To: [email protected]
Cc: Shepherd, R Mark
Subject: Powernet: TLD and ED worn in close proximity

Columbia requests the following information.


1)  Do you use a device such as a geometry card or bag to ensure the TLD and 
electronic dosimeter (ED) are worn in close proximity on the worker?

2)  On what types of jobs do you require the use of this device, e.g., only 
contaminated areas where PCs (or lab coats) are worn, work involving dose 
gradients, every time an ED is worn, etc.?


Thank you in advance.

Glenn W. Egert
Radiological Support, Dosimetry
Columbia Generating Station
Energy Northwest
(509) 377-4418
[email protected]<mailto:[email protected]>


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