Statistical analysis of the calibration procedure for personnel radiation measurement instruments

Thermoluminescent analyzer (TLA) calibration procedures were used to estimate personnel radiation exposure levels. A statistical analysis is presented based on data collected over a six month period. The data were collected according to the day-to-day procedure in effect at the time. Both gamma and beta radiation models are developed. Observed TLA readings of thermoluminescent dosimeters are correlated with known radiation levels. This correlation is then used to predict unkown radiation doses from future analyzer readings of personnel thermoluminescent dosimeters. The statistical techniques applied in this analysis include weighted linear regression, and estimation of systematic and random error variances.