Columbia Generating Station has the same practice as River Bend.

Ray Thomson
Health Physics Craft Supervisor
Columbia Generating Station
[email protected]
Office, 509-377-8273



From: [email protected] [mailto:[email protected]] On Behalf Of 
Soileau, Jessica
Sent: Tuesday, July 16, 2013 7:22 AM
To: [email protected]
Subject: RE: Powernet: DLR / TLD practices

River Bend Nuclear Station Response Below

Fermi 2 will be installing hand geometry this year and will allow security 
keycards to go home. We currently store our DLRs on security key cards and 
would appreciate your input on the below questions:


1) What type of DLR (TLD, OSL, Film) do you use? OSLD

2) Does your site take DLRs home? Yes.

3) If no, how/where do you store them on site? Only control stored on site.

4) If yes, do you use control dosimetry from on-site, off-site, or both to 
subtract background radiation? On-site Control badges stored outside of the PA 
in dosimetry office.  No offsite controls.

5) How do you do DLR exchange and how long does it take you? We change them out 
semi annually Jan. 1st and July 1st. We always have a few that take a week or 
so to change out.  We lock the old badges out of the RCA, so it helps with 
quick return for most.

6) Any other pros/cons of taking DLRs home vs staying on site? Taking DLR's 
home is common practice in many applications of dosimetry. This is also widely 
practiced in the medical profession (hospitals, radiology,etc.) and is accepted 
practice with regulatory agencies.  It also is very appropriate if you consider 
Emerg. Response Activities and Radworkers that would need to report to various 
locations during an event, i.e. they would have their DLR's on the way in to 
the plant; otherwise, if stored onsite, access to them may be an issue in a 
real event.

Jessica Soileau

Sr. Health Physicist/Chemical Specialist

Dosimetry, Instruments and Shipping

River Bend Nuclear Station

225-336-6494


Please respond to Powernet or Jim Stewart directly, 
[email protected]<mailto:[email protected]> (734.586.1388)

Thanks, Benjy


Benjy Bertossi
Fermi2 - RP Supervisor
734-586-4935
[email protected]<mailto:[email protected]>


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