Duke Energy response below. 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 Benjy P Bertossi Sent: Monday, May 07, 2012 2:23 PM To: [email protected] Subject: Powernet: Elect. Dosimeter / TLD / OSL Quick info check BWR / PWR /other - all PWRs Electronic dosimeter (ED) calibration correction factor(s) value - +15% dosimeter for legal record TLD / OSL / other - TLD Average (estimated or dominant) photon energy - Catawba: 780 keV, McGuire: 950 keV, Oconee: 900 keV Does the typical photon energy encountered change significantly (200 -300 kev) during refueling outages - don't believe it changes significantly typical ED / TLD (OSL) ratio - 75-95% TLD/ED depending on station and inage/outage monitoring period (6 month) If change from TLD to OSL/other was ED correction factor changed - Have not changed. thanks for your time, Benjy Benjy Bertossi Fermi2 - RP Supervisor 734-586-4935 [email protected]
