STATISTICAL ASSESSMENT OF THE TOTAL DOSE IN RURAL POPULATION

Abstract

Statistical evaluation of dose is the determination of an average value and its error. If an average value of a total dose in general can be determined by simple summarizing of the averages of its external and internal components, the evaluation of an error can be received only from its distribution. Herewith, considering that both components of the dose are interdependent to summarize their distributions, as a last ones of a random independent variables, is incorrect. It follows that an evaluation of the parameters of the total dose distribution cannot be received empirically. As an exception we may have a situation, which can be rarely met in practice, however, when both WBC- and TLD-measurements were taken simultaneously from the same persons. Standard geometric deviation of the total dose distribution and of the external dose distribution coincide, i.e. variance of the total dose is completely defined by such one of the external dose. This is a consequence of a dominant contribution of the external dose (65-85 %) in the total one. An error of the total dose is also defined by the error of the external dose. It is within 50 % for these conditions.