IMPDOS (improved dosimetry and risk assessment for plutonium-induced diseases): internal dosimetry software tools developed for the Mayak worker study.

A collection of software tools developed for the Mayak worker study is described. IMPDOS is software for modelling, data analysis, and activity and dose calculations using the bioassay and postmortem data from Mayak workers provided by Southern Urals Biophysics Institute. The capabilities include: parameter fitting of data for individual cases, Bayesian dose calculations using the fit results for collections of cases with extensive data as a biokinetic prior, and database storage of results for retrieval, analysis and interpretation.