We do not. I think decision was partially based on the fact that these extra 
"pre-alarms" could desensitize the workforce to actual ED alarm conditions. The 
expectation is that they monitor their EDs and exit the RCA prior to 80%.

Stephen J Holmes, CHP
Sr Radiation Protection Technical Specialist
[email protected]<mailto:[email protected]>
315-791-3577 (desk) 845-476-0796 (mobile)

[cid:[email protected]]
R.E. Ginna Nuclear Power Plant
1503 Lake Rd
Ontario, NY 14519



From: Creamer, Charles E [mailto:[email protected]]
Sent: Wednesday, April 27, 2016 2:44 PM
To: '[email protected]'
Subject: [EXTERNAL] [powernet] Dosimeter Pre-Alarms

Has anyone used the pre-alarm function of the electronic dosimeter lately.  I 
remember hearing something about them in the past in which dosimeter prelarms 
counted the same as an alarm but could not remember the specifics.

At Browns Ferry we do not use them and brief people to exit the area before 
they get to 80% of the dose alarm set point

Chuck Creamer
Charles E. Creamer
Health Physicist
Tennessee Valley Authority
Browns Ferry Nuclear Plant
P.O. Box 2000 (Mail Stop NAB-1G-BFN)
Decatur, Al. 35609-2000
Phone: 256-729-2983
Fax:  256-729-3101
Pager: 1-800-323-4853, pin 30-053
mailto:[email protected]


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