Abstract: By analyzing the factors that may affect the measurement results in the process of environmental cumulative dose measurement by thermoluminescence (TLD) method, the uncertainty components of each link were evaluated. It shows that among the uncertainty components involved, the main considerations are class A caused by measurement repeatability, class B caused by scale factor, and Class A caused by TLD lofting process. In addition, the uncertainty caused by TLD slice screening and cosmic ray response is also large.

Key words: Thermoluminescent method, Environmental cumulative dose, Uncertainty