1. Yes 2. We use the Mirion/Canberra Apex Gamma with LabSOCS characterized detectors. For the mathematical efficiency calibrations, we perform an annual verification count to ensure that the characterization is still valid. Any empirically derived efficiency calibrations are performed annually as are energy calibrations.
3. For the mathematical calibrations, if the verification is satisfactory, we keep using the old one. For empirically derived efficiencies, we use the new one (Apex makes it hard to do otherwise). David Brehm Sr. Radiological Engineer Radiation Protection – Fort Calhoun Station Omaha Public Power District 9610 Power Lane, Blair, NE 68008 Office: 402.533.7582 Cellular: 402.237.9840 [email protected]<mailto:[email protected]> From: BJ Thompson [mailto:[email protected]] Sent: Wednesday, August 23, 2017 9:11 AM To: [email protected] Cc: Dwain Salling <[email protected]> Subject: [powernet] Count Room MCA Calibration Phishing = #1 threat to OPPD Is this a phishing email? - Look again! This email is from [email protected]<mailto:[email protected]> - do you know them? Use the "Report it" button if you think this is a phishing email. ________________________________ North Anna is benchmarking the industry on Count Room MCA calibration. 1. Do you calibrate your MCAs annually? 2. What process do you use to calibrate your MCAs? For example ordering sources for each geometry or ordering a single source to verify no significant change in detector efficiencies? 3. Do you install new calibration values after completing detector energy/efficiency calibrations or continue to use the old values if energy/efficiency values have not changed significantly? Thank you in advance for you help! Barbara J. Thompson North Anna Power Station 1022 Haley Drive Mineral, Va 23117 Superintendent Health Physics Technical Services [email protected]<mailto:[email protected]> Phone: 540-894-2638 ________________________________ CONFIDENTIALITY NOTICE: This electronic message contains information which may be legally confidential and or privileged and does not in any case represent a firm ENERGY COMMODITY bid or offer relating thereto which binds the sender without an additional express written confirmation to that effect. The information is intended solely for the individual or entity named above and access by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution, or use of the contents of this information is prohibited and may be unlawful. If you have received this electronic transmission in error, please reply immediately to the sender that you have received the message in error, and delete it. Thank you. ---------------------------------------------------------------------- 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, or 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.
