I am posting this information for Celeste. Please direct responses and questions to Celeste. Thanks!
Celeste M. Ceva, RRPT General Supervisor - Radiation Protection McGuire Nuclear Station (o): 980-875-4049 (c): 704-783-5298 Looking for data on reactor cavity decon during an outage: * Plant name * PWR or BWR? * Scheduled duration for cavity decon? Critical path time? * Methods used for cavity decon? High pressure spray, heat, wipe, mop, removable coating, etc.? * Start & finish rad conditions (dose rates/smears)? * Who performs decon? Dedicated deconners, RP, maintenance, reactor services? Info from McGuire: * McGuire * PWR - Ice condenser * Phase I = 5 hours (critical path) - 3 passes of high pressure/heat spray of shallow end cavity floor and walls up to 8', followed by wipe of walls and pushing/mopping water on floor * Phase II = 2 hours (critical path) - dry decon of shallow end cavity floor and walls after removal of stud hole plugs and sandbox seals * Rad conditions - Start = 500 mRad, Finish = <50,000 dpm/100cm2 & 10 mrem/hr * Decon performed by dedicated decon support but considering using RP's in the future for better efficiency
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