All BWRs, We have a discrepancy in our DLR to DRD data in that the DLRs always report higher than our DLR dose. We have maintenance personnel located on the same elevation as our turbine. We see approximately 8 rem worth of exposure annually that is unaccounted for by DRD measurements. We also have security personnel located in BREs around the site that received between 1-2 rem annually from turbine shine.
Do any of your sites have personnel located within close proximity to your Turbine? If so what kind of delta between your DLR and DRD readings do you see? What kind of DRDs and DLRs are you utilizing and what is your DRD bias? Thanks, Jeremy Bebb Staff Health Physicist Cooper Nuclear Station (402) 825-5026
