Parametrization of the operational conditions of whole body counting systems

In this work the variables affecting the response in whole body counting systems are theoretically parametrized. These variables include the number of detectors, detector orientation relative to the human body, the presence of collimation systems and the shape of such collimators. The results of this study led to the development of a new whole body counter whose response could be adjusted to any required degree according to the problem under study. The response adjustment is simply achieved by displacing the detectors relative to a fixed collimation system. The calculated response of the proposed system is checked experimentally and the agreement is excellent. (orig.)