Pre-decontamination gamma-ray surface scans in TMI-2 containment building 305' elevation
1982
On Decembr 16, 1981 entry was made into the TMI-2 containment building to perform gamma-ray scans on surfaces of the 305' level. Five areas were selected for these measurements: two of them were of surfaces of walls, two were of floor surfaces under the reactor core flood tanks, and the remaining was of a floor surface in an area that had been receiving a great deal of personnel traffic. The results showed contamination levels of less than 1 ..mu..Ci/cm/sup 2/ for all of the surfaces, considerably less than was observed at the locations of previous scans. Two of the areas showed no net activity and minimum detectable limits are listed that are less than 0.3 ..mu..Ci/cm/sup 2/.
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