Airborne Gamma-Ray Surveys over Canadian Nuclear Sites

IA-6 AIRBORNE GAMMA-RAY SURVEYS OVER CANADIAN NUCLEAR SITES R.L. GRASTY 1 and L. SANDER 2 1 1 Gamma-Bob Inc 3924 Shirley Ave. Ottawa ON K1V 1H4 Canada 2 Sander Geophysics Summary Sander Geophysics Limited (SGL) and Gamma-Bob Inc. have collaborated to perform airborne gammaray surveys over several nuclear sites in Canada successfully mapping natural and man-made radiation levels. In October 1999 a survey was flown in Ontario over Pickering and Darlington nuclear generating stations using a twin-engine helicopter. The purpose of the survey was both for public information and to be used as a baseline radiometric survey for the area.