Specifically, the data will be processed to provide total gamma Tay exposure rate (extrapolated to the 1 meter level) and selected isotope (e.g. 241a, 1376, and 6005) concentration contours, Minimum detectability on the order of 5 pCi/g for 24 and less than 1 pCi/g ‘for 13766 and 600, can be obtained with this system. 9002698 ITI-10