Recent Developments in Radiation Protection at Power Reactors

Abstract

Retubing (removal and replacement of the pressure tubes) of Reactor Units 1 and 2 at Pickering NGS was the largest rehabilitation project ever completed in the nuclear power industry in Canada. The project was complicated by the discovery of carbon-14 particulate during the rehabilitation. Advances in radiation protection in the areas of protective clothing, dosimetry, instrumentation, dose reduction techniques, and management techniques were necessary for the successful completion of the retubing project. Other advances that occurred independently of retubing will also be discussed.