Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8080599 | Journal of Environmental Radioactivity | 2018 | 7 Pages |
Abstract
In situ gamma-ray spectrometry has since the introduction of portable germanium detectors been a widely used method for the assessment of radionuclide ground deposition activity levels. It is, however, a method that is most often associated with fairly large and, more important, poorly known combined measurement uncertainties. In this work an uncertainty analysis of in situ gamma ray spectrometry in accordance with the Guide to the Expression of Uncertainty in Measurements is presented. The uncertainty analysis takes into account uncertainty contributions from the calibration of the detector system, the assumed activity distribution in soil, soil density, detector height and air density. As a result, measurement results from in situ gamma spectrometry will serve as a better basis for decision-making in e.g. radiological emergencies.
Related Topics
Physical Sciences and Engineering
Energy
Nuclear Energy and Engineering
Authors
Leif Persson, Jonas Boson, Torbjörn Nylén, Henrik Ramebäck,