Abstract
This paper describes the experience acquired in calibration of three types of laboratory radiators installed in Cuba: the SINGLE-CELL-RAILSYSTEM, the GAMMA-CELL-500-001 and MRX-GAMMA-25M. The first two were made by Atomic Energy of Canada, Ltd. (AECL) in 1957 and 1984, respectively, and the last in 1971 in the USSR. All three incorporate a cobalt-60 source with different nominal activities and technical characteristic. During the dosimetric calibrations, these characteristics were studied on the basis of parameters, such as dose rate, intercept, uniformity ratio and tolerance limits. Fricke and Ceric sulfate dosimeters were used to perform the measurements. Statistical aspects of dose evaluation and its distribution were also considered. The accuracy of the results enable us to increase the efficacy in utilization of these radiators in the applications for which they are currently used.
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