Duke Energy (Catawba, McGuire, Oconee) same as Fort Calhoun. If there appears to be a problem with the ED (suspected invalid dose rate alarm and the like), the stations will perform a source check to verify ED response.
Chris Courtenay Engineer, Duke Energy 980-875-5005 "To the optimist, the glass is half full. To the pessimist, the glass is half empty. To the engineer, the glass is twice as big as it needs to be." From: [email protected] [mailto:[email protected]] On Behalf Of BREHM, DAVID M Sent: Friday, August 26, 2011 12:29 PM To: [email protected] Subject: Powernet: RE: DMC-2000s Response Check Frequency At this time, FCS only performs the annual calibration on the DMC-2000S and SOR/R dosimeters. Part of the justification for not doing more than this is the automatic self-checking the dosimeter dose on a pretty frequent basis. This self-check includes monitoring the detector circuitry for a minimum number of pulses per unit time. Basically, if the thing is broken, it will take itself out of service and annunciate an alarm when it does. David Brehm Fort Calhoun Nuclear Station Supervisor - Radiological Equipment & Dosimetry Office: 402.533.7582 Cellular: 402.214.0107 Pager: 402.561.3310 From: [email protected] [mailto:[email protected]] On Behalf Of Creamer, Charles E Sent: Friday, August 26, 2011 10:15 AM To: [email protected] Subject: Powernet: DMC-2000s Response Check Frequency Browns Ferry currently conducts a quarterly response check on our DMC2000S dosimeters. This is in addition to our yearly calibration. One of our new employees that came from another utility claims we are out of line with the rest of the industry on this as they just did a yearly response check. What frequency do you response check your electronic dosimeters? ___________________________ 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] ________________________________ This e-mail contains Omaha Public Power District's confidential and proprietary information and is for use only by the intended recipient. Unless explicitly stated otherwise, this e-mail is not a contract offer, amendment, nor acceptance. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
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