[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: False alarms on DMC model 90 electronic dosimeters



John. We have experienced the same false alarms at the Clinton Power Station. We
found ours were due to EMF's in certain areas of the plant. Our MG God is named
Brian Dodge. You can reach him at "Brian_Dodge@illinova.com" or call him at
(217) 935-8881 x 3272. He fixed our problem. Hope this helps.

"Leamon, John A." wrote:

> Does anyone out there, especially those of you working at a plant site, have
> practical experience dealing with false alarms on Merlin Gerin Model 90
> electronic dosimeters.  We are using these dosimeters with the Merlin Gerin
> LDM101 reader with 549C firmware and Windows 95 based HIS20 Access Control
> software.
>
> Several times each day, a small percentage of workers are exiting the RCA
> where known and confirmed radiation levels are less than 5 mrem/hour but the
> ED indicates a much, much higher value (sometimes in the hundreds or
> thousands of mrem/hour).  Needless to say, this is quite disturbing to the
> Rad workers, the Radcon staff, and other interested parties.
>
> We have been struggling with this issue for a month without success.  Any
> good ideas are appreciated to help get this behind opportunity behind us and
> move on to more worthwhile efforts.
>
> Contact me, John A. Leamon, at 423-751-7038 or email at jaleamon@tva.gov
>
> ************************************************************************
> The RADSAFE Frequently Asked Questions list, archives and subscription
> information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html

************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html