During the flight of the main missions on board the MIR station the individual doses of the crew members and the dose inside the core module was measured by the ID-3M package and R-16 dosimeter, respectively. Comparison of the skin dose measured by ID-3M unit and calculated by the transmission coefficient method on the basis of R-16 data in each of 23 main missions permits estimation of the systematic error of the transmission coefficient method. The mean value of this error is equal to 32%.
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