Comparison of different approaches of soil sampling uncertainty determination.

The ISO/IEC 17025 standard requires that all significant contributions have to be propagated to the measurement uncertainty, including also sampling uncertainties. We evaluated soil sampling uncertainties for gamma-ray spectrometry by using in-house and split-sample methods. By in-house method, the sampling uncertainty was determined by comparing standard deviations of measurement results and average analytical uncertainty.

Influence of solar activity on ambient dose equivalent *(10) measured with thermoluminescent dosimeters in Slovenia.

Ambient dose equivalent *(10) is measured to assess general population exposure to ionising radiation. From its spatial and time variations it is possible to identify sources of exposure. In Slovenia, semi-annual *(10) is measured routinely with thermoluminescence dosimeters at 66 locations around the Nuclear Power Plant (NPP) Krško and at 50 other locations covering the rest of Slovenian territory.

A Transnational Intercomparison of Environmental Dosemeters in Realistic Environmental Conditions.

Environmental dosemeters were benchmarked against various dosimetry systems in realistic environmental conditions. For the first time, the dosemeters, provided by two institutions from two different countries, were deployed at 20 sites in Slovenia and Croatia (near the Nuclear Power Plant, NPP Krško, Slovenia) during two semi-annual periods: summer-autumn and winter-spring. The results obtained using the different dosimetry systems show interesting features concerning local environmental peculiarities.